Phenomenology and diagnostic stability of youths with atypical psychotic symptoms.
Stefanie A Hlastala, Jon McClellan
Journal of Child and Adolescent Psychopharmacology June 2005 DOI: 10.1089/cap.2005.15.497 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Longitudinal follow-up study Peer reviewed |
|---|---|
| Sample size | 69 |
| Population | Youths reporting atypical psychotic symptoms, youths with schizophrenia, and youths with bipolar disorder with psychotic features |
| Duration | 2-year follow-up |
| Measures | Structured Clinical Interview for DSM-IV, Diagnostic Interview for Children and Adolescents |
| Topics | Philosophy of mind |
| Key findings | None of the 20 youths reporting atypical psychotic symptoms developed a classic psychotic illness by the 2-year follow-up. Compared with youths with schizophrenia or bipolar disorder with psychotic features, they had significantly higher rates of abuse and dissociative symptoms and were significantly more likely to receive a diagnosis of PTSD or a depressive disorder. The authors suggest such atypical hallucinations are more likely to reflect a mood or anxiety disorder than a current or prodromal psychotic illness. |
Abstract
This study aimed to better characterize the phenomenology and diagnostic stability of youths that report atypical psychotic symptoms. In a 2-year longitudinal follow-up study, youths reporting atypical psychotic symptoms (n = 20) were compared with youths with schizophrenia (n = 27) and youths with bipolar disorder with psychotic features (n = 22) on psychotic, dissociative, and general symptomatology, comorbid diagnoses, previous abuse, and overall functioning. Diagnoses were obtained using structured diagnostic interviews (i.e., the Structured Clinical Interview for DSM-IV and the Diagnostic Interview for Children and Adolescents). None of the subjects reporting atypical psychotic symptoms went on to develop a classic psychotic illness by the year 2 follow-up. These subjects had significantly higher rates of abuse and dissociative symptoms, and were significantly more likely to receive a diagnosis of posttraumatic stress disorder (PTSD) or a depressive disorder than youths with schizophrenia or bipolar disorder. Our findings suggest that youths with atypical, fleeting, or situationally specific hallucinations are more likely to have a mood or anxiety disorder (such as PTSD) than a current or prodromal psychotic illness.
Comparable studies
Other observational and cohort studies on philosophy of mind, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| The phenomenology of near-death experiences Subjects who reported near-death experiences | 1980 | Retrospective study | n = 78 |
| Visual Phenomenology of the LSD Flashback Persons with a history of LSD use | 1983 | Observational cohort | n = 123 |
| The neurophenomenology of neutral hypnosis. Individuals of high, medium, and low hypnotizability | 2013 | Observational cohort | n = 37 |
| The Phenomenology of Acute Organic Psychosis Patients with acute organic psychosis and acute schizophrenics | 1987 | Observational cohort | n = 148 |
| EEG oscillatory states as neuro-phenomenology of consciousness as revealed from patients in vegetative and minimally conscious states. Brain-damaged patients with disorders of consciousness and healthy-conscious subjects | 2012 | Observational cohort |