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Neuropsychological functioning in early-onset first-episode psychosis: comparison of diagnostic subgroups
Arantzazu Zabala1, Marta Rapado, Celso Arango
1Adolescent Unit, Department of Psychiatry, Hospital General Universitario Gregorio Marañón, c/Ibiza 43, 28009, Madrid, Spain. azabala@mce.hggm.es
Abstract:
The aims of this study were to examine the nature and extent of cognitive impairment in first-episode early-onset psychosis (FE-EOP) soon after their stabilisation and to search for potential differences according to specific diagnostic sub-groups of patients. As part of a Spanish multicentre longitudinal study, 107 FE-EOP patients and 98 healthy controls were assessed on the following cognitive domains: attention, working memory, executive functioning, and verbal learning and memory. Three diagnostic categories were established in the patient sample: schizophrenia (n = 36), bipolar disorder (n = 19), and other psychosis (n = 52). Patients performed significantly worse than controls in all cognitive domains. The three diagnostic sub-groups did not differ in terms of impaired/preserved cognitive functions or degree of impairment. FE-EOP patients show significant cognitive impairment that, during this early phase, seems to be non-specific to differential diagnosis.
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