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A unified general cognitive factor explains impairment across schizophrenia, bipolar disorder, OCD and substance use disorder

2026-01-01 psychiatry and clinical psychology Title + abstract only
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BackgroundEmerging evidence suggests that cognitive impairment cuts across traditional psychiatric diagnoses and may reflect a shared underlying cognitive liability. We examined whether a general cognitive factor (gFc) accounts for transdiagnostic deficits across schizophrenia (SZ), bipolar disorder (BD), obsessive-compulsive disorder (OCD) and substance use disorder (SUD). MethodsA total of 472 affected individuals and 253 population healthy controls (HC) completed a standardized cognitive bat...

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