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“Diagnostically homeless” Is it ADHD? Mania? Autism? What to do if no diagnosis fits
Children with developmental problems and serious psychopathologies often do not fit neatly into DSM diagnoses.1,2 These “diagnostically homeless” children—handicapped by hyperactivity, volcanic rages, extreme anxieties, and other complex problems—need assessment and treatment that address four domains of dysfunction:
- mood/anxiety problems
- possible psychosis
- language/thought disorder
- relationship/socialization problems.
This article offers snapshots of four children with undetermined diagnoses, explores the dilemma of treating such patients without knowing what they really have, and recommends a treatment approach to help them function better in school and at home.
WHO ARE THE ‘DIAGNOSTICALLY HOMELESS’?
Devon is 5. He is extremely hyperactive and impulsive, with a normal IQ but significant language delay. He exhibits little but not absent interest in peers and rages when changes are imposed on him.
Table 1
Criteria describing impairments in ‘diagnostically homeless’ children
Domain | Multiple complex developmental disorder (MCDD)* | Multidimensionally impaired (MDI) syndrome† | Schizotypal personality disorder |
---|---|---|---|
Anxiety symptoms | Intense generalized anxiety, diffuse tension or irritability; unusual fears and phobias, peculiar in content or intensity; recurrent panic episodes, terror, or flooding with anxiety | Unspecified | Excessive social anxiety associated with paranoid fears |
Affect regulation | Significant, wide, emotional variability out of proportion to precipitants | Nearly daily periods of emotional lability disproportionate to precipitants | Inappropriate or constricted affect |
Psychotic-like symptoms | Magical thinking; illogical confusion between reality and fantasy; grandiose fantasies of special powers | Poor ability to separate reality from fantasy | Ideas of reference; unusual perceptual experiences; suspicious; eccentric |
Thought/language disorder | Thought problems including irrationality, sudden intrusions on normal thought process, neologisms or nonsense words repeated over and over; blatantly illogical, bizarre ideas | Thought disorder specifically excluded | Odd thinking; vague, circumstantial, metaphorical speech, overelaborate or stereotyped |
Problems with social functioning | Social disinterest, detachment; instrumental relatedness; high degrees of ambivalence to adults, manifested by clinging, overly controlling, needy behavior and/or aggressive, oppositional behavior; limited capacity to empathize | Impaired interpersonal skills despite desire to initiate social interactions with peers | Lack of close friends or confidants other than relatives |
* PDD NOS (pervasive developmental disorder, not otherwise specified) is the closest DSM-IV-TR designation. | |||
† Psychosis NOS is the closest DSM-IV-TR designation. | |||
Source: References 1, 3, 8-13. |
Steven is 11, referred “to rule out bipolar disorder” and to evaluate hyperactivity, explosiveness, and nightmares. He didn’t speak until he was 22 months old. He worries that bad people are chasing him, fears skeletons under his bed, has nightmares of vampires, and believes that cartoon characters are real and that Sponge Bob is his protector. He says he sees “scary stuff” out of the corner of his eyes. He does not have a thought disorder; psychotic symptoms are more than an overactive imagination or anxiety.
Lauren, age 12, has been diagnosed with attention-deficit/hyperactivity disorder (ADHD) but now presents with withdrawn, depressed, and defiant behaviors. She is described as a “loner” who has never related well to other children. Lauren speaks about being tortured by her peers to the point of sounding paranoid. Her conversation is extremely circumstantial and rambling.
Richard, age 8, has motor coordination, attachment, and disinhibition problems. He hears voices telling him to do bad things, such as hurt people, steal things, and “break stuff.” He doesn’t mind the voices much, and they don’t pervade his life the way hallucinations do in schizophrenia.
Children such as these are common, and it is unclear whether they have a developmental disorder, the prodrome of a psychotic or mood disorder, or idiosyncratic personalities. They don’t meet criteria for many disorders, including autism, bipolar disorder, schizophrenia, and obsessive-compulsive disorder (OCD). They have more-extensive difficulties than those seen in ADHD, generalized anxiety disorder (GAD), or OCD.
Clinically, they are either forced into a category someone thinks they resemble (such as mania in Devon’s case) or are given a “not otherwise specified” (NOS) label (such as PDD NOS, psychosis NOS, or mood disorder NOS), the severity of which goes unacknowledged.
Problems with ‘NOS.’ Some might consider “NOS” a less-severe problem than a specific diagnosis, but these children are very impaired. They are excluded from treatment studies because they do not meet formal criteria for the designated disorder or they get included erroneously because the structured diagnostic interview doesn’t assess what they really have.
Meaningful psychoeducation for their parents is impossible because no Web site or book exists to help them help their child. Finally, no follow-up studies have been done of this group of children because no one can agree on a diagnosis. Small studies have addressed some of these concerns, but outcomes—not surprisingly—are wide-ranging.3-6
NOS diagnoses also don’t adequately address children with marked anxiety, unusual fears, and perseverative behaviors who are socially clumsy but manage reciprocal social interaction. These children are substantially disabled by:
- attention difficulties
- mood dysregulation (including anxiety and/or manic symptoms)
- trouble with transitions/change
- motor problems (not infrequently)
- pragmatic language/social difficulties.
Diagnostic terms that have tried to classify these children (Table 1) include:
- childhood-onset PDD, described in DSM-III. This category was dropped in DSM III-R to be included in PDD, then largely ignored in DSM-IV when autism criteria were refined.
- multiple complex developmental disorder (MCDD),7-9 which appears to describe children within the autism spectrum (such as PDD NOS)
- multidimensionally-impaired (MDI) syndrome, whose atypical psychosis has been called “psychosis NOS”10-11
- schizotypal personality disorder, which addresses similar symptoms (although mental health professionals are loathe to use a personality disorder diagnosis in a child).12
At this time, however, diagnostic conclusions about this heterogeneous group of children are premature. Our classification system does not do them justice, and we need to study them for what they have, rather than forcing them into our current alternatives.
Prevalence. To find out how many patients in our university-based, tertiary-care clinic do not fit DSM-IV-TR nosology, we examined data from faculty evaluations of 624 children and adolescents.13 These included semi-structured interviews of parent and child, rating scales from parents and teachers, and testing information from the schools in two-thirds of cases.
The result: nearly 25% of our child and adolescent psychiatry outpatients are “diagnostically homeless.” Like the rest of our patient population, these children are:
- 80% male
- 60% under age 12
- 86% Caucasian
- 85% living with their biological mothers.
- ADHD (16%). They have great difficulty with executive functions, such as paying attention, inhibiting impulsive responses, planning and organizing, making transitions from one activity to another, and controlling emotion. Their problems, however, go much beyond ADHD.
- Bipolar disorder (15%) or depression/anxiety (16%). They have catastrophic anxiety and/or frightening rages triggered by apparently trivial circumstances. They balk or “shut down” when people want them to move or act faster than they can move or act.
- To “rule out autism” (19%). More than one-half (56%) of these children have a diagnosable speech or language disorder, compared with 35% among our other child psychiatry outpatients.
- For educational assessment (23%). School systems request guidance for educational interventions because these children are possibly psychotic and disturbing to teachers and children. They may be unable to execute homework assignments and fail their courses but surprisingly do grade-level work on achievement tests.
ASSESSING FOUR DOMAINS
We can consolidate the domains needing assessment into mood/anxiety problems, possible psychosis, language/thought disorder, and relationship/socialization problems. Although evaluating and treating some of these domains may be beyond the psychiatrist’s purview, we must make sure that other professionals attend to them.
Anxiety and mood. Understanding these children’s anxieties is important. A routine fear of bees is a simple phobia, whereas catastrophic anxiety over a highly unlikely impending tornado and perseverative interest in the weather may be more common in a PDD spectrum disorder. Anxiety about going to sleep because a monster is going to suck out one’s brains does not easily fit into the rubric of generalized anxiety.14
Irritability is these youngsters’ most disabling mood symptom. Volcanic anger and rage that prompts referral occurs in numerous conditions, including mania. Many of the children described in Ross Greene’s book, The Explosive Child,15 have conditions other than bipolar disorder. Although parents and teachers often describe these events as occurring without provocation, a good functional behavioral assessment will usually reveal a precipitant.
Table 2
Assessing children’s social and language skills
Social assessment | Seen in… |
---|---|
Are the child’s social abilities delayed? | ADHD |
Is he uninterested in social situations? | Autism |
Is he clueless about social interaction? | Autism spectrum disorders including MCDD, MDI, PDD NOS, nonverbal learning disability |
Are social interactions deviant? | Schizotypal personality disorder/schizophrenia |
Does child appear shut down/behaviorally inhibited in unfamiliar settings, with greater comfort at home or with familiar people? | Social phobia |
Language assessment (can be done by psychiatrist) | |
| |
Useful questions | Seen in… |
Was communication delayed but then progressed “normally”? | Developmental language disorder |
Did it begin normally and stop? | Autism |
Was/is it egocentric and/or unidimensional? | Asperger’s disorder; nonverbal learning disability |
Was/is it bizarre or paranoid? | Schizotypal personality disorder |
Pragmatic language problems? | All of the above, MCDD, MDI, ADHD |
Communication domains (may require speech pathologist assessment) | |
Expressive and receptive language | |
Pragmatic language (the child’s ability to communicate in the real world; see Table 3) | |
Written language | |
Audiology (hearing and auditory processing) | |
ADHD: attention-deficit/hyperactivity disorder | |
MCDD: multiple complex developmental disorder | |
MDI: multidimensionally impaired syndrome | |
PDD NOS: pervasive developmental disorder not otherwise specified |
Possible psychosis. These children may have impaired reality testing that can be difficult to assess; thus, deciding whether the child is experiencing psychotic symptoms can be a challenge. The child may be intensely involved with fantasy characters or imaginary companions to such a degree that he or she insists the character is real.16,17 Developmentally normal fears—as of the dark, monsters, or images from dreams—may preoccupy him or her during the day. Quasi-psychotic symptoms such as these are easily missed if:
- we don’t ask about them
- we assume the child is “just pretending” or has a “great imagination”
- the child does not volunteer the information spontaneously.18
Communication skills children need to learn
|
Language/thought disorder. Parents may not recognize that their child has a thought or language disorder because they have filled in the blanks and interpreted for him or her for so long. Asking the child “yes” and “no” questions will not elucidate these disorders, either. The examiner must talk to the child to determine his or her ability to:
- sustain an extended narration that makes sense
- stay on the topic
- care whether the listener understands what the child is talking about
- make a point.
Nonverbal communication realms include eye contact, appropriate hand gestures and facial expression, tone of voice, and vocal inflection. Other important areas of language to assess are summarized in Table 2.
Relationship/socialization problems. It is important to know whether the child has friends, wants friends, or prefers being with younger children. Peer relationships may be absent, delayed, or deviant.
Other assessments. The diagnostically homeless children we see have complicated family histories of psychopathology. Their first-degree relatives have a higher number of heritable disorders—including bipolar disorder, panic disorder, ADHD, learning disabilities, and “nervous breakdowns”—than do those of children with uncomplicated ADHD, bipolar disorder, or anxiety disorders. Ask about these conditions when taking the family history; if a family member is said to be bipolar, get a description of the person’s symptoms.
Table 4
Targeting drug therapies to treat children’s symptoms
Drug class | Efficacy by symptom domain |
---|---|
Atypical antipsychotics | Psychosis/thought disorder: Can reduce psychotic symptoms |
Anxiety symptoms: Can reduce extreme anxieties | |
Affect regulation: Improved by mood-stabilizing effect | |
Socialization problems: Appear to modify affective aggression, hyperactivity, and impulsivity, which can improve socialization and pragmatic communication | |
Mood stabilizers | Psychosis/thought disorder: Not primary area of effectiveness |
Anxiety symptoms: May be helpful; not primary area of effectiveness | |
Affect regulation: Address mood dysregulation | |
Socialization problems: May reduce aggressive outbursts and mood, which can improve socialization | |
Stimulants* | Psychosis/thought disorder: Can produce or intensify psychotic symptoms and agitation |
Anxiety: Usually do not improve anxiety; can intensify anxiety and agitation | |
Affect regulation: Not a primary effect in severe cases; address impulsive aggression via mood stabilization | |
Socialization problems: Can improve functioning via decreased impulsivity, inattention, and aggression | |
SSRI antidepressants† | Psychosis/thought disorder: Do not directly address |
Anxiety: Can be effective in decreasing anxiety | |
Affect regulation: Can improve depressed mood | |
Socialization problems: Can be improved as a result of improved mood and decreased anxiety | |
* Stimulants often increase agitation and disinhibition. | |
† Watch for behavioral disinhibition, possible increase in suicidality, with selective serotonin reuptake inhibitors (SSRIs). |
A skilled psychologist or speech pathologist can help you determine the presence or absence of cognitive and language dysfunction and learning disabilities. Even before we interview the parents and child, we ask parents and teachers to rate the child’s attention, behavior, mood, PDD-like symptoms, and anxiety, using the Child/Adolescent Symptom Inventory (see Related resources). We use the youth version with children age 10 and older, then review the symptoms with the parents and child to make sure we understand all presenting comorbidities.
TREATMENT
Nonmedical interventions begin with an accurate diagnosis, where possible. Then the four steps of treatment are to:
- address each domain of dysfunction
- translate findings to parent, child, and teachers/school.
- provide settings and resources that allow the child to work most effectively
- develop a behavioral program for the most frequent problems, with consistent response by caretakers and educators.
A communication specialist interested in pragmatics is needed to make sure the child is understood and being understood in the classroom. Table 3, summarizes communications skills the child needs to learn. An educational specialist who serves a resource to other professionals may also help the child. Curriculum should be based on long-term goals rather than on inflexible credit schedules that teach worthless, unlearnable information and demoralize the student.
Finally, the education setting should provide opportunities for structured social interaction and less-structured but supervised—”bully-proofed”—interactions.
Medications. No systematic medical treatment data exist, as there is no way to classify these children. They are usually treated with multiple medications for their specific symptom cluster abnormalities (Table 4). Options include:
- atypical antipsychotics such as risperidone, quetiapine, aripiprazole, ziprasidone, or olanzapine
- mood stabilizers such as valproic acid, lithium, or lamotrigine
- stimulants such as methylphenidate, amphetamine salts, atomoxetine, or bupropion (a mild stimulant and an antidepressant)
- selective serotonin reuptake inhibitors, such as fluoxetine, sertraline, citalopram, paroxetine, or fluvoxamine.
Medication side effects understandably frighten parents—who may be reluctant to have their children use any drug therapies. Counsel the parents in advance that side effects may occur.
- Child/Adolescent Symptom Inventory. http://www.checkmateplus.com. Accessed Jan. 11, 2005.
- Amphetamine • Adderall
- Aripiprazole • Abilify
- Atomoxetine • Strattera
- Bupropion • Wellbutrin
- Citalopram • Celexa
- Fluoxetine • Prozac
- Fluvoxamine • Luvox
- Lamotrigine • Lamictal
- Lithium carbonate • Lithobid, others
- Methylphenidate • Concerta, Ritalin
- Olanzapine • Zyprexa
- Paroxetine • Paxil
- Quetiapine • Seroquel
- Risperidone • Risperdal
- Sertraline • Zoloft
- Valproic acid • Depakote
- Ziprasidone • Geodon
Dr. Weisbrot receives grants from Pfizer Inc.
Dr. Carlson receives grants from or is a speaker for Janssen Pharmaceutica, Eli Lilly and Co., Shire Pharmaceuticals Groups, and Abbott Laboratories; is a consultant to Janssen Pharmaceutica and Eli Lilly and Co.; and is an advisor to Otsuka America Pharmaceutical, Pfizer Inc., and Ortho-McNeil Pharmaceutical.
1. Meijer M, Treffers P. Borderline and schizotypal disorders in children and adolescents. Br J Psychiatry 1991;158:205-12.
2. Petti TA, Vela RM. Borderline disorders of childhood: an overview. J Am Acad Child Adolesc Psychiatry 1990;29:327-37.
3. Wolff S. Loners: the life path of unusual children. London: Routledge, 1995.
4. Kestenbaum C. The borderline child at risk for major psychiatric disorder in adult life: seven case reports with followup. In: Robson KS (ed). The borderline child. New York: McGraw-Hill, 1983;49-82.
5. Lofgren DP, Bemporad J, King J, et al. A prospective follow-up study of so-called borderline children. Am J Psychiatry 1991;148:1541-7.
6. Nicolson R, Lenane M, Brookner F, et al. Children and adolescents with psychotic disorder not otherwise specified: a 2-to-8 year follow-up study. Compr Psychiatry 2001;42:319-25.
7. Towbin KE, Dykens EM, Pearson GS, Cohen DA. Conceptualizing “borderline syndrome of childhood” and “childhood schizophrenia” as a developmental disorder. J Am Acad Child Adolesc Psychiatry 1993;32(4):775-82.
8. Buitelaar JK, van der Gaag RJ. Diagnostic rules for children with PDD-NOS and multiple complex developmental disorder. J Child Psychol Psychiatry 1998;39(6):911-19.
9. Van der Gaag RJ, Buitelaar J, Van den Ban E, et al. A controlled multivariate chart review of multiple complex developmental disorder. J Am Acad Child Adolesc Psychiatry 1995;34(8):1096-106.
10. McKenna K, Gordon C, Lenane M, et al. Looking for childhood-onset schizophrenia: the first 71 cases screened. J Am Acad Child Adolesc Psychiatry 1994;33:636-44.
11. Kumra S, Jacobsen L, Lenane M, et al. “Multidimensionally impaired disorder”: is it a variant of very early-onset schizophrenia? J Am Acad Child Adolesc Psychiatry 1998;37(1):91-99.
12. Nagy J, Satzmari P. A chart review of schizotypal personality disorders in children. J Autism Dev Disord 1986;16(3):351-67.
13. Carlson GA. Unpublished data.
14. Greene R. The explosive child: a new approach for understanding and parenting easily frustrated, chronically inflexible children (2nd ed). New York: Harper Collins, 2001.
15. Weisbrot DM, Gadow KD, DeVincent CJ, et al. The presentation of anxiety in children with pervasive developmental disorders. J Child Adolesc Psychopharmacol 2005 (in press).
16. Garralda ME. Hallucinations in children with conduct and emotional disorders: the clinical phenomena. Psychol Med 1984;14:589-96.
17. Ulloa RE, Birmaher B, Axelson D, et al. Psychosis in a pediatric mood and anxiety disorders clinic: phenomenology and correlates. J Am Acad Child Adolesc Psychiatry 2000;39(3):337-45.
18. Schreier HA. Hallucinations in nonpsychotic children: more common than we think? J Am Acad Child Adolesc Psychiatry 2000;38(5):623-625.
19. Carlson GA, Mick E. Drug-induced disinhibition in psychiatrically hospitalized children. J Child Adolesc Psychopharmacol 2003;13(2):153-63.
Children with developmental problems and serious psychopathologies often do not fit neatly into DSM diagnoses.1,2 These “diagnostically homeless” children—handicapped by hyperactivity, volcanic rages, extreme anxieties, and other complex problems—need assessment and treatment that address four domains of dysfunction:
- mood/anxiety problems
- possible psychosis
- language/thought disorder
- relationship/socialization problems.
This article offers snapshots of four children with undetermined diagnoses, explores the dilemma of treating such patients without knowing what they really have, and recommends a treatment approach to help them function better in school and at home.
WHO ARE THE ‘DIAGNOSTICALLY HOMELESS’?
Devon is 5. He is extremely hyperactive and impulsive, with a normal IQ but significant language delay. He exhibits little but not absent interest in peers and rages when changes are imposed on him.
Table 1
Criteria describing impairments in ‘diagnostically homeless’ children
Domain | Multiple complex developmental disorder (MCDD)* | Multidimensionally impaired (MDI) syndrome† | Schizotypal personality disorder |
---|---|---|---|
Anxiety symptoms | Intense generalized anxiety, diffuse tension or irritability; unusual fears and phobias, peculiar in content or intensity; recurrent panic episodes, terror, or flooding with anxiety | Unspecified | Excessive social anxiety associated with paranoid fears |
Affect regulation | Significant, wide, emotional variability out of proportion to precipitants | Nearly daily periods of emotional lability disproportionate to precipitants | Inappropriate or constricted affect |
Psychotic-like symptoms | Magical thinking; illogical confusion between reality and fantasy; grandiose fantasies of special powers | Poor ability to separate reality from fantasy | Ideas of reference; unusual perceptual experiences; suspicious; eccentric |
Thought/language disorder | Thought problems including irrationality, sudden intrusions on normal thought process, neologisms or nonsense words repeated over and over; blatantly illogical, bizarre ideas | Thought disorder specifically excluded | Odd thinking; vague, circumstantial, metaphorical speech, overelaborate or stereotyped |
Problems with social functioning | Social disinterest, detachment; instrumental relatedness; high degrees of ambivalence to adults, manifested by clinging, overly controlling, needy behavior and/or aggressive, oppositional behavior; limited capacity to empathize | Impaired interpersonal skills despite desire to initiate social interactions with peers | Lack of close friends or confidants other than relatives |
* PDD NOS (pervasive developmental disorder, not otherwise specified) is the closest DSM-IV-TR designation. | |||
† Psychosis NOS is the closest DSM-IV-TR designation. | |||
Source: References 1, 3, 8-13. |
Steven is 11, referred “to rule out bipolar disorder” and to evaluate hyperactivity, explosiveness, and nightmares. He didn’t speak until he was 22 months old. He worries that bad people are chasing him, fears skeletons under his bed, has nightmares of vampires, and believes that cartoon characters are real and that Sponge Bob is his protector. He says he sees “scary stuff” out of the corner of his eyes. He does not have a thought disorder; psychotic symptoms are more than an overactive imagination or anxiety.
Lauren, age 12, has been diagnosed with attention-deficit/hyperactivity disorder (ADHD) but now presents with withdrawn, depressed, and defiant behaviors. She is described as a “loner” who has never related well to other children. Lauren speaks about being tortured by her peers to the point of sounding paranoid. Her conversation is extremely circumstantial and rambling.
Richard, age 8, has motor coordination, attachment, and disinhibition problems. He hears voices telling him to do bad things, such as hurt people, steal things, and “break stuff.” He doesn’t mind the voices much, and they don’t pervade his life the way hallucinations do in schizophrenia.
Children such as these are common, and it is unclear whether they have a developmental disorder, the prodrome of a psychotic or mood disorder, or idiosyncratic personalities. They don’t meet criteria for many disorders, including autism, bipolar disorder, schizophrenia, and obsessive-compulsive disorder (OCD). They have more-extensive difficulties than those seen in ADHD, generalized anxiety disorder (GAD), or OCD.
Clinically, they are either forced into a category someone thinks they resemble (such as mania in Devon’s case) or are given a “not otherwise specified” (NOS) label (such as PDD NOS, psychosis NOS, or mood disorder NOS), the severity of which goes unacknowledged.
Problems with ‘NOS.’ Some might consider “NOS” a less-severe problem than a specific diagnosis, but these children are very impaired. They are excluded from treatment studies because they do not meet formal criteria for the designated disorder or they get included erroneously because the structured diagnostic interview doesn’t assess what they really have.
Meaningful psychoeducation for their parents is impossible because no Web site or book exists to help them help their child. Finally, no follow-up studies have been done of this group of children because no one can agree on a diagnosis. Small studies have addressed some of these concerns, but outcomes—not surprisingly—are wide-ranging.3-6
NOS diagnoses also don’t adequately address children with marked anxiety, unusual fears, and perseverative behaviors who are socially clumsy but manage reciprocal social interaction. These children are substantially disabled by:
- attention difficulties
- mood dysregulation (including anxiety and/or manic symptoms)
- trouble with transitions/change
- motor problems (not infrequently)
- pragmatic language/social difficulties.
Diagnostic terms that have tried to classify these children (Table 1) include:
- childhood-onset PDD, described in DSM-III. This category was dropped in DSM III-R to be included in PDD, then largely ignored in DSM-IV when autism criteria were refined.
- multiple complex developmental disorder (MCDD),7-9 which appears to describe children within the autism spectrum (such as PDD NOS)
- multidimensionally-impaired (MDI) syndrome, whose atypical psychosis has been called “psychosis NOS”10-11
- schizotypal personality disorder, which addresses similar symptoms (although mental health professionals are loathe to use a personality disorder diagnosis in a child).12
At this time, however, diagnostic conclusions about this heterogeneous group of children are premature. Our classification system does not do them justice, and we need to study them for what they have, rather than forcing them into our current alternatives.
Prevalence. To find out how many patients in our university-based, tertiary-care clinic do not fit DSM-IV-TR nosology, we examined data from faculty evaluations of 624 children and adolescents.13 These included semi-structured interviews of parent and child, rating scales from parents and teachers, and testing information from the schools in two-thirds of cases.
The result: nearly 25% of our child and adolescent psychiatry outpatients are “diagnostically homeless.” Like the rest of our patient population, these children are:
- 80% male
- 60% under age 12
- 86% Caucasian
- 85% living with their biological mothers.
- ADHD (16%). They have great difficulty with executive functions, such as paying attention, inhibiting impulsive responses, planning and organizing, making transitions from one activity to another, and controlling emotion. Their problems, however, go much beyond ADHD.
- Bipolar disorder (15%) or depression/anxiety (16%). They have catastrophic anxiety and/or frightening rages triggered by apparently trivial circumstances. They balk or “shut down” when people want them to move or act faster than they can move or act.
- To “rule out autism” (19%). More than one-half (56%) of these children have a diagnosable speech or language disorder, compared with 35% among our other child psychiatry outpatients.
- For educational assessment (23%). School systems request guidance for educational interventions because these children are possibly psychotic and disturbing to teachers and children. They may be unable to execute homework assignments and fail their courses but surprisingly do grade-level work on achievement tests.
ASSESSING FOUR DOMAINS
We can consolidate the domains needing assessment into mood/anxiety problems, possible psychosis, language/thought disorder, and relationship/socialization problems. Although evaluating and treating some of these domains may be beyond the psychiatrist’s purview, we must make sure that other professionals attend to them.
Anxiety and mood. Understanding these children’s anxieties is important. A routine fear of bees is a simple phobia, whereas catastrophic anxiety over a highly unlikely impending tornado and perseverative interest in the weather may be more common in a PDD spectrum disorder. Anxiety about going to sleep because a monster is going to suck out one’s brains does not easily fit into the rubric of generalized anxiety.14
Irritability is these youngsters’ most disabling mood symptom. Volcanic anger and rage that prompts referral occurs in numerous conditions, including mania. Many of the children described in Ross Greene’s book, The Explosive Child,15 have conditions other than bipolar disorder. Although parents and teachers often describe these events as occurring without provocation, a good functional behavioral assessment will usually reveal a precipitant.
Table 2
Assessing children’s social and language skills
Social assessment | Seen in… |
---|---|
Are the child’s social abilities delayed? | ADHD |
Is he uninterested in social situations? | Autism |
Is he clueless about social interaction? | Autism spectrum disorders including MCDD, MDI, PDD NOS, nonverbal learning disability |
Are social interactions deviant? | Schizotypal personality disorder/schizophrenia |
Does child appear shut down/behaviorally inhibited in unfamiliar settings, with greater comfort at home or with familiar people? | Social phobia |
Language assessment (can be done by psychiatrist) | |
| |
Useful questions | Seen in… |
Was communication delayed but then progressed “normally”? | Developmental language disorder |
Did it begin normally and stop? | Autism |
Was/is it egocentric and/or unidimensional? | Asperger’s disorder; nonverbal learning disability |
Was/is it bizarre or paranoid? | Schizotypal personality disorder |
Pragmatic language problems? | All of the above, MCDD, MDI, ADHD |
Communication domains (may require speech pathologist assessment) | |
Expressive and receptive language | |
Pragmatic language (the child’s ability to communicate in the real world; see Table 3) | |
Written language | |
Audiology (hearing and auditory processing) | |
ADHD: attention-deficit/hyperactivity disorder | |
MCDD: multiple complex developmental disorder | |
MDI: multidimensionally impaired syndrome | |
PDD NOS: pervasive developmental disorder not otherwise specified |
Possible psychosis. These children may have impaired reality testing that can be difficult to assess; thus, deciding whether the child is experiencing psychotic symptoms can be a challenge. The child may be intensely involved with fantasy characters or imaginary companions to such a degree that he or she insists the character is real.16,17 Developmentally normal fears—as of the dark, monsters, or images from dreams—may preoccupy him or her during the day. Quasi-psychotic symptoms such as these are easily missed if:
- we don’t ask about them
- we assume the child is “just pretending” or has a “great imagination”
- the child does not volunteer the information spontaneously.18
Communication skills children need to learn
|
Language/thought disorder. Parents may not recognize that their child has a thought or language disorder because they have filled in the blanks and interpreted for him or her for so long. Asking the child “yes” and “no” questions will not elucidate these disorders, either. The examiner must talk to the child to determine his or her ability to:
- sustain an extended narration that makes sense
- stay on the topic
- care whether the listener understands what the child is talking about
- make a point.
Nonverbal communication realms include eye contact, appropriate hand gestures and facial expression, tone of voice, and vocal inflection. Other important areas of language to assess are summarized in Table 2.
Relationship/socialization problems. It is important to know whether the child has friends, wants friends, or prefers being with younger children. Peer relationships may be absent, delayed, or deviant.
Other assessments. The diagnostically homeless children we see have complicated family histories of psychopathology. Their first-degree relatives have a higher number of heritable disorders—including bipolar disorder, panic disorder, ADHD, learning disabilities, and “nervous breakdowns”—than do those of children with uncomplicated ADHD, bipolar disorder, or anxiety disorders. Ask about these conditions when taking the family history; if a family member is said to be bipolar, get a description of the person’s symptoms.
Table 4
Targeting drug therapies to treat children’s symptoms
Drug class | Efficacy by symptom domain |
---|---|
Atypical antipsychotics | Psychosis/thought disorder: Can reduce psychotic symptoms |
Anxiety symptoms: Can reduce extreme anxieties | |
Affect regulation: Improved by mood-stabilizing effect | |
Socialization problems: Appear to modify affective aggression, hyperactivity, and impulsivity, which can improve socialization and pragmatic communication | |
Mood stabilizers | Psychosis/thought disorder: Not primary area of effectiveness |
Anxiety symptoms: May be helpful; not primary area of effectiveness | |
Affect regulation: Address mood dysregulation | |
Socialization problems: May reduce aggressive outbursts and mood, which can improve socialization | |
Stimulants* | Psychosis/thought disorder: Can produce or intensify psychotic symptoms and agitation |
Anxiety: Usually do not improve anxiety; can intensify anxiety and agitation | |
Affect regulation: Not a primary effect in severe cases; address impulsive aggression via mood stabilization | |
Socialization problems: Can improve functioning via decreased impulsivity, inattention, and aggression | |
SSRI antidepressants† | Psychosis/thought disorder: Do not directly address |
Anxiety: Can be effective in decreasing anxiety | |
Affect regulation: Can improve depressed mood | |
Socialization problems: Can be improved as a result of improved mood and decreased anxiety | |
* Stimulants often increase agitation and disinhibition. | |
† Watch for behavioral disinhibition, possible increase in suicidality, with selective serotonin reuptake inhibitors (SSRIs). |
A skilled psychologist or speech pathologist can help you determine the presence or absence of cognitive and language dysfunction and learning disabilities. Even before we interview the parents and child, we ask parents and teachers to rate the child’s attention, behavior, mood, PDD-like symptoms, and anxiety, using the Child/Adolescent Symptom Inventory (see Related resources). We use the youth version with children age 10 and older, then review the symptoms with the parents and child to make sure we understand all presenting comorbidities.
TREATMENT
Nonmedical interventions begin with an accurate diagnosis, where possible. Then the four steps of treatment are to:
- address each domain of dysfunction
- translate findings to parent, child, and teachers/school.
- provide settings and resources that allow the child to work most effectively
- develop a behavioral program for the most frequent problems, with consistent response by caretakers and educators.
A communication specialist interested in pragmatics is needed to make sure the child is understood and being understood in the classroom. Table 3, summarizes communications skills the child needs to learn. An educational specialist who serves a resource to other professionals may also help the child. Curriculum should be based on long-term goals rather than on inflexible credit schedules that teach worthless, unlearnable information and demoralize the student.
Finally, the education setting should provide opportunities for structured social interaction and less-structured but supervised—”bully-proofed”—interactions.
Medications. No systematic medical treatment data exist, as there is no way to classify these children. They are usually treated with multiple medications for their specific symptom cluster abnormalities (Table 4). Options include:
- atypical antipsychotics such as risperidone, quetiapine, aripiprazole, ziprasidone, or olanzapine
- mood stabilizers such as valproic acid, lithium, or lamotrigine
- stimulants such as methylphenidate, amphetamine salts, atomoxetine, or bupropion (a mild stimulant and an antidepressant)
- selective serotonin reuptake inhibitors, such as fluoxetine, sertraline, citalopram, paroxetine, or fluvoxamine.
Medication side effects understandably frighten parents—who may be reluctant to have their children use any drug therapies. Counsel the parents in advance that side effects may occur.
- Child/Adolescent Symptom Inventory. http://www.checkmateplus.com. Accessed Jan. 11, 2005.
- Amphetamine • Adderall
- Aripiprazole • Abilify
- Atomoxetine • Strattera
- Bupropion • Wellbutrin
- Citalopram • Celexa
- Fluoxetine • Prozac
- Fluvoxamine • Luvox
- Lamotrigine • Lamictal
- Lithium carbonate • Lithobid, others
- Methylphenidate • Concerta, Ritalin
- Olanzapine • Zyprexa
- Paroxetine • Paxil
- Quetiapine • Seroquel
- Risperidone • Risperdal
- Sertraline • Zoloft
- Valproic acid • Depakote
- Ziprasidone • Geodon
Dr. Weisbrot receives grants from Pfizer Inc.
Dr. Carlson receives grants from or is a speaker for Janssen Pharmaceutica, Eli Lilly and Co., Shire Pharmaceuticals Groups, and Abbott Laboratories; is a consultant to Janssen Pharmaceutica and Eli Lilly and Co.; and is an advisor to Otsuka America Pharmaceutical, Pfizer Inc., and Ortho-McNeil Pharmaceutical.
Children with developmental problems and serious psychopathologies often do not fit neatly into DSM diagnoses.1,2 These “diagnostically homeless” children—handicapped by hyperactivity, volcanic rages, extreme anxieties, and other complex problems—need assessment and treatment that address four domains of dysfunction:
- mood/anxiety problems
- possible psychosis
- language/thought disorder
- relationship/socialization problems.
This article offers snapshots of four children with undetermined diagnoses, explores the dilemma of treating such patients without knowing what they really have, and recommends a treatment approach to help them function better in school and at home.
WHO ARE THE ‘DIAGNOSTICALLY HOMELESS’?
Devon is 5. He is extremely hyperactive and impulsive, with a normal IQ but significant language delay. He exhibits little but not absent interest in peers and rages when changes are imposed on him.
Table 1
Criteria describing impairments in ‘diagnostically homeless’ children
Domain | Multiple complex developmental disorder (MCDD)* | Multidimensionally impaired (MDI) syndrome† | Schizotypal personality disorder |
---|---|---|---|
Anxiety symptoms | Intense generalized anxiety, diffuse tension or irritability; unusual fears and phobias, peculiar in content or intensity; recurrent panic episodes, terror, or flooding with anxiety | Unspecified | Excessive social anxiety associated with paranoid fears |
Affect regulation | Significant, wide, emotional variability out of proportion to precipitants | Nearly daily periods of emotional lability disproportionate to precipitants | Inappropriate or constricted affect |
Psychotic-like symptoms | Magical thinking; illogical confusion between reality and fantasy; grandiose fantasies of special powers | Poor ability to separate reality from fantasy | Ideas of reference; unusual perceptual experiences; suspicious; eccentric |
Thought/language disorder | Thought problems including irrationality, sudden intrusions on normal thought process, neologisms or nonsense words repeated over and over; blatantly illogical, bizarre ideas | Thought disorder specifically excluded | Odd thinking; vague, circumstantial, metaphorical speech, overelaborate or stereotyped |
Problems with social functioning | Social disinterest, detachment; instrumental relatedness; high degrees of ambivalence to adults, manifested by clinging, overly controlling, needy behavior and/or aggressive, oppositional behavior; limited capacity to empathize | Impaired interpersonal skills despite desire to initiate social interactions with peers | Lack of close friends or confidants other than relatives |
* PDD NOS (pervasive developmental disorder, not otherwise specified) is the closest DSM-IV-TR designation. | |||
† Psychosis NOS is the closest DSM-IV-TR designation. | |||
Source: References 1, 3, 8-13. |
Steven is 11, referred “to rule out bipolar disorder” and to evaluate hyperactivity, explosiveness, and nightmares. He didn’t speak until he was 22 months old. He worries that bad people are chasing him, fears skeletons under his bed, has nightmares of vampires, and believes that cartoon characters are real and that Sponge Bob is his protector. He says he sees “scary stuff” out of the corner of his eyes. He does not have a thought disorder; psychotic symptoms are more than an overactive imagination or anxiety.
Lauren, age 12, has been diagnosed with attention-deficit/hyperactivity disorder (ADHD) but now presents with withdrawn, depressed, and defiant behaviors. She is described as a “loner” who has never related well to other children. Lauren speaks about being tortured by her peers to the point of sounding paranoid. Her conversation is extremely circumstantial and rambling.
Richard, age 8, has motor coordination, attachment, and disinhibition problems. He hears voices telling him to do bad things, such as hurt people, steal things, and “break stuff.” He doesn’t mind the voices much, and they don’t pervade his life the way hallucinations do in schizophrenia.
Children such as these are common, and it is unclear whether they have a developmental disorder, the prodrome of a psychotic or mood disorder, or idiosyncratic personalities. They don’t meet criteria for many disorders, including autism, bipolar disorder, schizophrenia, and obsessive-compulsive disorder (OCD). They have more-extensive difficulties than those seen in ADHD, generalized anxiety disorder (GAD), or OCD.
Clinically, they are either forced into a category someone thinks they resemble (such as mania in Devon’s case) or are given a “not otherwise specified” (NOS) label (such as PDD NOS, psychosis NOS, or mood disorder NOS), the severity of which goes unacknowledged.
Problems with ‘NOS.’ Some might consider “NOS” a less-severe problem than a specific diagnosis, but these children are very impaired. They are excluded from treatment studies because they do not meet formal criteria for the designated disorder or they get included erroneously because the structured diagnostic interview doesn’t assess what they really have.
Meaningful psychoeducation for their parents is impossible because no Web site or book exists to help them help their child. Finally, no follow-up studies have been done of this group of children because no one can agree on a diagnosis. Small studies have addressed some of these concerns, but outcomes—not surprisingly—are wide-ranging.3-6
NOS diagnoses also don’t adequately address children with marked anxiety, unusual fears, and perseverative behaviors who are socially clumsy but manage reciprocal social interaction. These children are substantially disabled by:
- attention difficulties
- mood dysregulation (including anxiety and/or manic symptoms)
- trouble with transitions/change
- motor problems (not infrequently)
- pragmatic language/social difficulties.
Diagnostic terms that have tried to classify these children (Table 1) include:
- childhood-onset PDD, described in DSM-III. This category was dropped in DSM III-R to be included in PDD, then largely ignored in DSM-IV when autism criteria were refined.
- multiple complex developmental disorder (MCDD),7-9 which appears to describe children within the autism spectrum (such as PDD NOS)
- multidimensionally-impaired (MDI) syndrome, whose atypical psychosis has been called “psychosis NOS”10-11
- schizotypal personality disorder, which addresses similar symptoms (although mental health professionals are loathe to use a personality disorder diagnosis in a child).12
At this time, however, diagnostic conclusions about this heterogeneous group of children are premature. Our classification system does not do them justice, and we need to study them for what they have, rather than forcing them into our current alternatives.
Prevalence. To find out how many patients in our university-based, tertiary-care clinic do not fit DSM-IV-TR nosology, we examined data from faculty evaluations of 624 children and adolescents.13 These included semi-structured interviews of parent and child, rating scales from parents and teachers, and testing information from the schools in two-thirds of cases.
The result: nearly 25% of our child and adolescent psychiatry outpatients are “diagnostically homeless.” Like the rest of our patient population, these children are:
- 80% male
- 60% under age 12
- 86% Caucasian
- 85% living with their biological mothers.
- ADHD (16%). They have great difficulty with executive functions, such as paying attention, inhibiting impulsive responses, planning and organizing, making transitions from one activity to another, and controlling emotion. Their problems, however, go much beyond ADHD.
- Bipolar disorder (15%) or depression/anxiety (16%). They have catastrophic anxiety and/or frightening rages triggered by apparently trivial circumstances. They balk or “shut down” when people want them to move or act faster than they can move or act.
- To “rule out autism” (19%). More than one-half (56%) of these children have a diagnosable speech or language disorder, compared with 35% among our other child psychiatry outpatients.
- For educational assessment (23%). School systems request guidance for educational interventions because these children are possibly psychotic and disturbing to teachers and children. They may be unable to execute homework assignments and fail their courses but surprisingly do grade-level work on achievement tests.
ASSESSING FOUR DOMAINS
We can consolidate the domains needing assessment into mood/anxiety problems, possible psychosis, language/thought disorder, and relationship/socialization problems. Although evaluating and treating some of these domains may be beyond the psychiatrist’s purview, we must make sure that other professionals attend to them.
Anxiety and mood. Understanding these children’s anxieties is important. A routine fear of bees is a simple phobia, whereas catastrophic anxiety over a highly unlikely impending tornado and perseverative interest in the weather may be more common in a PDD spectrum disorder. Anxiety about going to sleep because a monster is going to suck out one’s brains does not easily fit into the rubric of generalized anxiety.14
Irritability is these youngsters’ most disabling mood symptom. Volcanic anger and rage that prompts referral occurs in numerous conditions, including mania. Many of the children described in Ross Greene’s book, The Explosive Child,15 have conditions other than bipolar disorder. Although parents and teachers often describe these events as occurring without provocation, a good functional behavioral assessment will usually reveal a precipitant.
Table 2
Assessing children’s social and language skills
Social assessment | Seen in… |
---|---|
Are the child’s social abilities delayed? | ADHD |
Is he uninterested in social situations? | Autism |
Is he clueless about social interaction? | Autism spectrum disorders including MCDD, MDI, PDD NOS, nonverbal learning disability |
Are social interactions deviant? | Schizotypal personality disorder/schizophrenia |
Does child appear shut down/behaviorally inhibited in unfamiliar settings, with greater comfort at home or with familiar people? | Social phobia |
Language assessment (can be done by psychiatrist) | |
| |
Useful questions | Seen in… |
Was communication delayed but then progressed “normally”? | Developmental language disorder |
Did it begin normally and stop? | Autism |
Was/is it egocentric and/or unidimensional? | Asperger’s disorder; nonverbal learning disability |
Was/is it bizarre or paranoid? | Schizotypal personality disorder |
Pragmatic language problems? | All of the above, MCDD, MDI, ADHD |
Communication domains (may require speech pathologist assessment) | |
Expressive and receptive language | |
Pragmatic language (the child’s ability to communicate in the real world; see Table 3) | |
Written language | |
Audiology (hearing and auditory processing) | |
ADHD: attention-deficit/hyperactivity disorder | |
MCDD: multiple complex developmental disorder | |
MDI: multidimensionally impaired syndrome | |
PDD NOS: pervasive developmental disorder not otherwise specified |
Possible psychosis. These children may have impaired reality testing that can be difficult to assess; thus, deciding whether the child is experiencing psychotic symptoms can be a challenge. The child may be intensely involved with fantasy characters or imaginary companions to such a degree that he or she insists the character is real.16,17 Developmentally normal fears—as of the dark, monsters, or images from dreams—may preoccupy him or her during the day. Quasi-psychotic symptoms such as these are easily missed if:
- we don’t ask about them
- we assume the child is “just pretending” or has a “great imagination”
- the child does not volunteer the information spontaneously.18
Communication skills children need to learn
|
Language/thought disorder. Parents may not recognize that their child has a thought or language disorder because they have filled in the blanks and interpreted for him or her for so long. Asking the child “yes” and “no” questions will not elucidate these disorders, either. The examiner must talk to the child to determine his or her ability to:
- sustain an extended narration that makes sense
- stay on the topic
- care whether the listener understands what the child is talking about
- make a point.
Nonverbal communication realms include eye contact, appropriate hand gestures and facial expression, tone of voice, and vocal inflection. Other important areas of language to assess are summarized in Table 2.
Relationship/socialization problems. It is important to know whether the child has friends, wants friends, or prefers being with younger children. Peer relationships may be absent, delayed, or deviant.
Other assessments. The diagnostically homeless children we see have complicated family histories of psychopathology. Their first-degree relatives have a higher number of heritable disorders—including bipolar disorder, panic disorder, ADHD, learning disabilities, and “nervous breakdowns”—than do those of children with uncomplicated ADHD, bipolar disorder, or anxiety disorders. Ask about these conditions when taking the family history; if a family member is said to be bipolar, get a description of the person’s symptoms.
Table 4
Targeting drug therapies to treat children’s symptoms
Drug class | Efficacy by symptom domain |
---|---|
Atypical antipsychotics | Psychosis/thought disorder: Can reduce psychotic symptoms |
Anxiety symptoms: Can reduce extreme anxieties | |
Affect regulation: Improved by mood-stabilizing effect | |
Socialization problems: Appear to modify affective aggression, hyperactivity, and impulsivity, which can improve socialization and pragmatic communication | |
Mood stabilizers | Psychosis/thought disorder: Not primary area of effectiveness |
Anxiety symptoms: May be helpful; not primary area of effectiveness | |
Affect regulation: Address mood dysregulation | |
Socialization problems: May reduce aggressive outbursts and mood, which can improve socialization | |
Stimulants* | Psychosis/thought disorder: Can produce or intensify psychotic symptoms and agitation |
Anxiety: Usually do not improve anxiety; can intensify anxiety and agitation | |
Affect regulation: Not a primary effect in severe cases; address impulsive aggression via mood stabilization | |
Socialization problems: Can improve functioning via decreased impulsivity, inattention, and aggression | |
SSRI antidepressants† | Psychosis/thought disorder: Do not directly address |
Anxiety: Can be effective in decreasing anxiety | |
Affect regulation: Can improve depressed mood | |
Socialization problems: Can be improved as a result of improved mood and decreased anxiety | |
* Stimulants often increase agitation and disinhibition. | |
† Watch for behavioral disinhibition, possible increase in suicidality, with selective serotonin reuptake inhibitors (SSRIs). |
A skilled psychologist or speech pathologist can help you determine the presence or absence of cognitive and language dysfunction and learning disabilities. Even before we interview the parents and child, we ask parents and teachers to rate the child’s attention, behavior, mood, PDD-like symptoms, and anxiety, using the Child/Adolescent Symptom Inventory (see Related resources). We use the youth version with children age 10 and older, then review the symptoms with the parents and child to make sure we understand all presenting comorbidities.
TREATMENT
Nonmedical interventions begin with an accurate diagnosis, where possible. Then the four steps of treatment are to:
- address each domain of dysfunction
- translate findings to parent, child, and teachers/school.
- provide settings and resources that allow the child to work most effectively
- develop a behavioral program for the most frequent problems, with consistent response by caretakers and educators.
A communication specialist interested in pragmatics is needed to make sure the child is understood and being understood in the classroom. Table 3, summarizes communications skills the child needs to learn. An educational specialist who serves a resource to other professionals may also help the child. Curriculum should be based on long-term goals rather than on inflexible credit schedules that teach worthless, unlearnable information and demoralize the student.
Finally, the education setting should provide opportunities for structured social interaction and less-structured but supervised—”bully-proofed”—interactions.
Medications. No systematic medical treatment data exist, as there is no way to classify these children. They are usually treated with multiple medications for their specific symptom cluster abnormalities (Table 4). Options include:
- atypical antipsychotics such as risperidone, quetiapine, aripiprazole, ziprasidone, or olanzapine
- mood stabilizers such as valproic acid, lithium, or lamotrigine
- stimulants such as methylphenidate, amphetamine salts, atomoxetine, or bupropion (a mild stimulant and an antidepressant)
- selective serotonin reuptake inhibitors, such as fluoxetine, sertraline, citalopram, paroxetine, or fluvoxamine.
Medication side effects understandably frighten parents—who may be reluctant to have their children use any drug therapies. Counsel the parents in advance that side effects may occur.
- Child/Adolescent Symptom Inventory. http://www.checkmateplus.com. Accessed Jan. 11, 2005.
- Amphetamine • Adderall
- Aripiprazole • Abilify
- Atomoxetine • Strattera
- Bupropion • Wellbutrin
- Citalopram • Celexa
- Fluoxetine • Prozac
- Fluvoxamine • Luvox
- Lamotrigine • Lamictal
- Lithium carbonate • Lithobid, others
- Methylphenidate • Concerta, Ritalin
- Olanzapine • Zyprexa
- Paroxetine • Paxil
- Quetiapine • Seroquel
- Risperidone • Risperdal
- Sertraline • Zoloft
- Valproic acid • Depakote
- Ziprasidone • Geodon
Dr. Weisbrot receives grants from Pfizer Inc.
Dr. Carlson receives grants from or is a speaker for Janssen Pharmaceutica, Eli Lilly and Co., Shire Pharmaceuticals Groups, and Abbott Laboratories; is a consultant to Janssen Pharmaceutica and Eli Lilly and Co.; and is an advisor to Otsuka America Pharmaceutical, Pfizer Inc., and Ortho-McNeil Pharmaceutical.
1. Meijer M, Treffers P. Borderline and schizotypal disorders in children and adolescents. Br J Psychiatry 1991;158:205-12.
2. Petti TA, Vela RM. Borderline disorders of childhood: an overview. J Am Acad Child Adolesc Psychiatry 1990;29:327-37.
3. Wolff S. Loners: the life path of unusual children. London: Routledge, 1995.
4. Kestenbaum C. The borderline child at risk for major psychiatric disorder in adult life: seven case reports with followup. In: Robson KS (ed). The borderline child. New York: McGraw-Hill, 1983;49-82.
5. Lofgren DP, Bemporad J, King J, et al. A prospective follow-up study of so-called borderline children. Am J Psychiatry 1991;148:1541-7.
6. Nicolson R, Lenane M, Brookner F, et al. Children and adolescents with psychotic disorder not otherwise specified: a 2-to-8 year follow-up study. Compr Psychiatry 2001;42:319-25.
7. Towbin KE, Dykens EM, Pearson GS, Cohen DA. Conceptualizing “borderline syndrome of childhood” and “childhood schizophrenia” as a developmental disorder. J Am Acad Child Adolesc Psychiatry 1993;32(4):775-82.
8. Buitelaar JK, van der Gaag RJ. Diagnostic rules for children with PDD-NOS and multiple complex developmental disorder. J Child Psychol Psychiatry 1998;39(6):911-19.
9. Van der Gaag RJ, Buitelaar J, Van den Ban E, et al. A controlled multivariate chart review of multiple complex developmental disorder. J Am Acad Child Adolesc Psychiatry 1995;34(8):1096-106.
10. McKenna K, Gordon C, Lenane M, et al. Looking for childhood-onset schizophrenia: the first 71 cases screened. J Am Acad Child Adolesc Psychiatry 1994;33:636-44.
11. Kumra S, Jacobsen L, Lenane M, et al. “Multidimensionally impaired disorder”: is it a variant of very early-onset schizophrenia? J Am Acad Child Adolesc Psychiatry 1998;37(1):91-99.
12. Nagy J, Satzmari P. A chart review of schizotypal personality disorders in children. J Autism Dev Disord 1986;16(3):351-67.
13. Carlson GA. Unpublished data.
14. Greene R. The explosive child: a new approach for understanding and parenting easily frustrated, chronically inflexible children (2nd ed). New York: Harper Collins, 2001.
15. Weisbrot DM, Gadow KD, DeVincent CJ, et al. The presentation of anxiety in children with pervasive developmental disorders. J Child Adolesc Psychopharmacol 2005 (in press).
16. Garralda ME. Hallucinations in children with conduct and emotional disorders: the clinical phenomena. Psychol Med 1984;14:589-96.
17. Ulloa RE, Birmaher B, Axelson D, et al. Psychosis in a pediatric mood and anxiety disorders clinic: phenomenology and correlates. J Am Acad Child Adolesc Psychiatry 2000;39(3):337-45.
18. Schreier HA. Hallucinations in nonpsychotic children: more common than we think? J Am Acad Child Adolesc Psychiatry 2000;38(5):623-625.
19. Carlson GA, Mick E. Drug-induced disinhibition in psychiatrically hospitalized children. J Child Adolesc Psychopharmacol 2003;13(2):153-63.
1. Meijer M, Treffers P. Borderline and schizotypal disorders in children and adolescents. Br J Psychiatry 1991;158:205-12.
2. Petti TA, Vela RM. Borderline disorders of childhood: an overview. J Am Acad Child Adolesc Psychiatry 1990;29:327-37.
3. Wolff S. Loners: the life path of unusual children. London: Routledge, 1995.
4. Kestenbaum C. The borderline child at risk for major psychiatric disorder in adult life: seven case reports with followup. In: Robson KS (ed). The borderline child. New York: McGraw-Hill, 1983;49-82.
5. Lofgren DP, Bemporad J, King J, et al. A prospective follow-up study of so-called borderline children. Am J Psychiatry 1991;148:1541-7.
6. Nicolson R, Lenane M, Brookner F, et al. Children and adolescents with psychotic disorder not otherwise specified: a 2-to-8 year follow-up study. Compr Psychiatry 2001;42:319-25.
7. Towbin KE, Dykens EM, Pearson GS, Cohen DA. Conceptualizing “borderline syndrome of childhood” and “childhood schizophrenia” as a developmental disorder. J Am Acad Child Adolesc Psychiatry 1993;32(4):775-82.
8. Buitelaar JK, van der Gaag RJ. Diagnostic rules for children with PDD-NOS and multiple complex developmental disorder. J Child Psychol Psychiatry 1998;39(6):911-19.
9. Van der Gaag RJ, Buitelaar J, Van den Ban E, et al. A controlled multivariate chart review of multiple complex developmental disorder. J Am Acad Child Adolesc Psychiatry 1995;34(8):1096-106.
10. McKenna K, Gordon C, Lenane M, et al. Looking for childhood-onset schizophrenia: the first 71 cases screened. J Am Acad Child Adolesc Psychiatry 1994;33:636-44.
11. Kumra S, Jacobsen L, Lenane M, et al. “Multidimensionally impaired disorder”: is it a variant of very early-onset schizophrenia? J Am Acad Child Adolesc Psychiatry 1998;37(1):91-99.
12. Nagy J, Satzmari P. A chart review of schizotypal personality disorders in children. J Autism Dev Disord 1986;16(3):351-67.
13. Carlson GA. Unpublished data.
14. Greene R. The explosive child: a new approach for understanding and parenting easily frustrated, chronically inflexible children (2nd ed). New York: Harper Collins, 2001.
15. Weisbrot DM, Gadow KD, DeVincent CJ, et al. The presentation of anxiety in children with pervasive developmental disorders. J Child Adolesc Psychopharmacol 2005 (in press).
16. Garralda ME. Hallucinations in children with conduct and emotional disorders: the clinical phenomena. Psychol Med 1984;14:589-96.
17. Ulloa RE, Birmaher B, Axelson D, et al. Psychosis in a pediatric mood and anxiety disorders clinic: phenomenology and correlates. J Am Acad Child Adolesc Psychiatry 2000;39(3):337-45.
18. Schreier HA. Hallucinations in nonpsychotic children: more common than we think? J Am Acad Child Adolesc Psychiatry 2000;38(5):623-625.
19. Carlson GA, Mick E. Drug-induced disinhibition in psychiatrically hospitalized children. J Child Adolesc Psychopharmacol 2003;13(2):153-63.