Within-individual variability in cognitive performance in schizophrenia: A narrative review of the key literature and proposed research agenda.

Journal: Schizophrenia research

Volume: 252

Issue: 

Year of Publication: 2023

Affiliated Institutions:  Department of Psychiatry and Mental Health, University of Cape Town, South Africa. Electronic address: wttoli@myuct.ac.za. Department of Psychiatry and Mental Health, University of Cape Town, South Africa; Biomedical Research and Innovation Platform, South African Medical Research Council, South Africa. Department of Epidemiology, Mailman School of Public Health, Columbia University, USA; New York State Psychiatric Institute, New York, NY, USA. Brain Behavior Laboratories, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, USA. Department of Psychiatry and Mental Health, University of Cape Town, South Africa; SAMRC Unit on Risk & Resilience in Mental Disorders, South Africa.

Abstract summary 

Schizophrenia is a neurodevelopmental disorder and a leading cause of disability worldwide. Deficits in cognitive function are characteristic of schizophrenia and are predictors of functional outcomes in the disorder. Within-individual variability (WIV) in cognitive performance is elevated in schizophrenia and has been suggested to provide additional insight into cognitive function over and above mean performance measures. Despite growing interest in WIV in schizophrenia, research on the clinical significance and neural correlates of WIV in the disorder remains sparse. The present narrative review summarizes the key literature linking WIV in schizophrenia to clinical, neural, and genetic correlates. Here, we aim to highlight key knowledge gaps and provide directions for future research into WIV in schizophrenia.

Authors & Co-authors:  Wootton Olivia O Dalvie Shareefa S Susser Ezra E Gur Ruben C RC Stein Dan J DJ

Study Outcome 

Source Link: Visit source

Statistics
Citations :  Ahn JI, Yu ST, Sung G, Choi TK, Lee KS, Bang M, & Lee SH (2019). Intra-individual variability in neurocognitive function in schizophrenia: relationships with the corpus callosum. Psychiatry Res Neuroimaging, 283, 1–6. doi:10.1016/j.pscychresns.2018.11.005
Authors :  5
Identifiers
Doi : 10.1016/j.schres.2023.01.028
SSN : 1573-2509
Study Population
Male,Female
Mesh Terms
Humans
Other Terms
Cognition;Genetic predisposition to disease;Neuroimaging;Reaction time;Schizophrenia;Within-individual variability
Study Design
Narrative Study,Cross Sectional Study
Study Approach
Country of Study
Publication Country
Netherlands