ERIC Number: EJ1030320
Record Type: Journal
Publication Date: 2014-Jul
Abstractor: As Provided
Reference Count: N/A
Neuropsychological Functioning in Childhood-Onset Psychosis and Attention-Deficit/Hyperactivity Disorder
Brodsky, Kimberly; Willcutt, Erik G.; Davalos, Deana B.; Ross, Randal G.
Journal of Child Psychology and Psychiatry, v55 n7 p811-818 Jul 2014
Background: Attention-deficit/hyperactivity disorder (ADHD) and childhood-onset psychosis (COP) are chronic, heterogeneous disorders with symptoms that frequently co-occur, but the etiology of their comorbidity is unknown. Studies of each disorder indicate that both ADHD and COP are associated with a range of neuropsychological weaknesses, but few neuropsychological studies have directly compared groups with ADHD and COP. Methods: Groups with ADHD only (32 F, 48 M), COP only (5 F, 5 M), ADHD + COP (9 F, 21 M), and a control group with neither disorder (25 F, 44 M) completed a neuropsychological battery that included measures of verbal working memory, response inhibition, response speed and variability, and selective attention. Results: All three clinical groups exhibited significantly lower performance versus the control group on all neuropsychological measures, whereas the only significant difference between the clinical groups was a significantly larger weakness in verbal working memory in the groups with COP. Conclusions: The frequent co-occurrence between COP and ADHD may reflect shared neuropsychological weaknesses that are most pronounced on measures of working memory and response variability.
Descriptors: Attention Deficit Hyperactivity Disorder, Mental Disorders, Psychosis, Psychiatry, Comorbidity, Etiology, Neuropsychology, Comparative Analysis, Verbal Ability, Short Term Memory, Responses, Inhibition, Attention
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
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