Multivariate Relationships Between Cognition and Brain Anatomy Across the Psychosis Spectrum

Biological Psychiatry : Cognitive Neuroscience and Neuroimaging
Amanda L RodrigueBrett A Clementz

Abstract

Cognitive and structural brain abnormalities range from mild to severe in psychosis. The relationships of specific cognitive functions to specific brain structures across the psychosis spectrum is less certain. Participants (n = 678) with bipolar, schizoaffective, or schizophrenia psychoses and healthy control subjects were recruited via the Bipolar-Schizophrenia Network for Intermediate Phenotypes. The Schizo-Bipolar Scale was used to create a psychosis continuum (from purely affective to purely nonaffective). Canonical correlation between 14 cognitive measures and structural brain measures (gray matter volume, cortical thickness, cortical surface area, and local gyrification indices) for 68 neocortical regions yielded constructs that defined shared cognition-brain structure relationships. Canonical discriminant analysis was used to integrate these constructs and efficiently summarize cognition-brain structure relationships across the psychosis continuum. General cognition was associated with larger gray matter volumes and thicker cortices but smaller cortical surface area in frontoparietal regions. Working memory was associated with larger volume and surface area in frontotemporal regions. Faster response speed was associated...Continue Reading

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Citations

Jun 28, 2020·Human Brain Mapping·Xiaowei ZhuangDietmar Cordes
Sep 27, 2020·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Carol A TammingaRobert Gibbons

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