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Brain Cortical Thickness and Surface Area Correlates of Neurocognitive Performance in Patients with Schizophrenia, Bipolar Disorder, and Healthy Adults

Published online by Cambridge University Press:  03 October 2011

C.B. Hartberg ,
K. Sundet ,
L.M. Rimol ,
U.K. Haukvik ,
E.H. Lange ,
R. Nesvåg ,
A.M. Dale ,
I. Melle ,
O.A. Andreassen  and
I. Agartz
C.B. Hartberg*
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway
K. Sundet
Affiliation:
Department of Psychology, University of Oslo, Norway Division of Mental Health and Addiction, Psychosis Research Unit, Oslo University Hospital, Norway
L.M. Rimol
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway
U.K. Haukvik
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway Department of Psychiatry, Diakonhjemmet Hospital, Oslo, Norway
E.H. Lange
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway Department of Psychiatry, Diakonhjemmet Hospital, Oslo, Norway
R. Nesvåg
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway Department of Psychiatry, Diakonhjemmet Hospital, Oslo, Norway
A.M. Dale
Affiliation:
Division of Mental Health and Addiction, Psychosis Research Unit, Oslo University Hospital, Norway Department of Neurosciences, University of California San Diego, La Jolla, California Department of Radiology, University of California San Diego, La Jolla, California
I. Melle
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway Division of Mental Health and Addiction, Psychosis Research Unit, Oslo University Hospital, Norway
O.A. Andreassen
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway Division of Mental Health and Addiction, Psychosis Research Unit, Oslo University Hospital, Norway
I. Agartz
Affiliation:
Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Norway Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
*
Correspondence and reprint requests to: Cecilie Bhandari Hartberg, P.O. Box 85, Vinderen, University of Oslo, N-0319 Oslo, Norway. E-mail: [email protected]
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Abstract

Relationships between cortical brain structure and neurocognitive functioning have been reported in schizophrenia, but findings are inconclusive, and only a few studies in bipolar disorder have addressed this issue. This is the first study to directly compare relationships between cortical thickness and surface area with neurocognitive functioning in patients with schizophrenia (n = 117) and bipolar disorder (n = 121) and healthy controls (n = 192). MRI scans were obtained, and regional cortical thickness and surface area measurements were analyzed for relationships with test scores from 6 neurocognitive domains. In the combined sample, cortical thickness in the right rostral anterior cingulate was inversely related to working memory, and cortical surface area in four frontal and temporal regions were positively related to neurocognitive functioning. A positive relationship between left transverse temporal thickness and processing speed was specific to schizophrenia. A negative relationship between right temporal pole thickness and working memory was specific to bipolar disorder. In conclusion, significant cortical structure/function relationships were found in a large sample of healthy controls and patients with schizophrenia or bipolar disorder. The differences that were found between schizophrenia and bipolar may indicate differential relationship patterns in the two disorders, which may be of relevance for understanding the underlying pathophysiology. (JINS, 2011, 17, 1080–1093)

Keywords

MRINeuropsychological testsCerebral cortexBrain structureCognitionBrain mapping
Type
Regular Articles
Information
Journal of the International Neuropsychological Society , Volume 17 , Issue 6 , November 2011 , pp. 1080 - 1093
Copyright
Copyright © The International Neuropsychological Society 2011

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