ArticleSchizophrenia research. Cognition2026
Longitudinal measurements of inhibitory cognitive performance in patients with schizophrenia and bipolar disorder.
Article in Schizophrenia research. Cognition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Cognitive impairment is a major determinant of functional outcome in psychotic spectrum disorders. Among cognitive domains, motor response inhibition has received limited longitudinal investigation. The present study examined the temporal course of inhibitory performance and its relationship with dimensional psychopathology in schizophrenia and bipolar disorder. Methods: Thirty-eight outpatients (23 schizophrenia spectrum, 15 bipolar spectrum) from the e-Prevention project were followed for up to 26 months. At monthly or bi-monthly intervals, participants completed a computerized Go/No-Go task assessing accuracy, response speed and intra-individual variability of response speed. Linear mixed-effects models evaluated the effects of time, diagnosis and longitudinal change in symptom severity on performance, controlling for medication and neuropsychological variables. Results: Accuracy declined over time in schizophrenia but slightly improved in bipolar disorder, indicating divergent longitudinal trajectories (F = 9.02, Conclusions: This study provides preliminary evidence that inhibitory control exhibits distinct temporal patterns in schizophrenia and bipolar disorder. Schizophrenia could be marked by gradual accuracy decline, while in bipolar disorder, accuracy may show relative stability modulated by positive symptoms. Future work on larger samples should incorporate neurophysiology/neuroimaging, to elucidate the underlying neural mechanisms of these differences.
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