Structural and Functional Brain Correlates of Cognitive Impairment in Euthymic Patients with Bipolar Disorder

被引:33
作者
Alonso-Lana, Silvia [1 ,2 ,3 ]
Goikolea, Jose M. [2 ,4 ]
Bonnin, Caterina M. [2 ,4 ]
Sarro, Salvador [1 ,2 ]
Segura, Barbara [5 ]
Amann, Benedikt L. [1 ,2 ]
Monte, Gemma C. [1 ,2 ]
Moro, Noemi [1 ,6 ]
Fernandez-Corcuera, Paloma [1 ,6 ]
Maristany, Teresa [7 ]
Salvador, Raymond [1 ,2 ]
Vieta, Eduard [2 ,4 ,5 ]
Pomarol-Clotet, Edith [1 ,2 ]
McKenna, Peter J. [1 ,2 ]
机构
[1] FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
[2] Ctr Invest Biomed Red Salud Mental CIBERSAM, Madrid, Spain
[3] Univ Barcelona, Programa Doctorado Med, Barcelona, Spain
[4] Univ Barcelona, IDIBAPS, Hosp Clin, Inst Neurosci,Bipolar Disorder Program, Barcelona, Catalonia, Spain
[5] Univ Barcelona, Dept Psychiat & Clin Psychobiol, Barcelona, Spain
[6] Benito Menni Complex Assistencial Salut Mental, Barcelona, Spain
[7] Hosp St Joan de Deu Infantil, Barcelona, Spain
来源
PLOS ONE | 2016年 / 11卷 / 07期
关键词
VOXEL-BASED MORPHOMETRY; WORKING-MEMORY; QUANTITATIVE METAANALYSIS; PREFRONTAL CORTEX; DEFAULT NETWORK; SCHIZOPHRENIA; FMRI; PERFORMANCE; DEFICITS; ROBUST;
D O I
10.1371/journal.pone.0158867
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Introduction Cognitive impairment in the euthymic phase is a well-established finding in bipolar disorder. However, its brain structural and/or functional correlates are uncertain. Methods Thirty-three euthymic bipolar patients with preserved memory and executive function and 28 euthymic bipolar patients with significant memory and/or executive impairment, as defined using two test batteries, the Rivermead Behavioural Memory Test (RBMT) and the Behavioural Assessment of the Dysexecutive Syndrome (BADS), plus 28 healthy controls underwent structural MRI using voxel-based morphometry (VBM). Twenty-seven of the cognitively preserved patients, 23 of the cognitively impaired patients and 28 controls also underwent fMRI during performance of the n-back working memory task. Results No clusters of grey or white matter volume difference were found between the two patient groups. During n-back performance, the cognitively impaired patients showed hypoactivation compared to the cognitively preserved patients in a circumscribed region in the right dorsolateral prefrontal cortex. Both patient groups showed failure of de-activation in the medial frontal cortex compared to the healthy controls. Conclusions Cognitive impairment in euthymic bipolar patients appears from this study to be unrelated to structural brain abnormality, but there was some evidence for an association with altered prefrontal function.
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页数:17
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