Abstract:
OBJECTIVES:Several lines of evidence suggest that deficits in cognition persist in bipolar patients during periods of euthymia. Working memory impairment has been observed in euthymic bipolar patients and noted to be a significant source of functional deficits in psychiatric disorders. Functional changes associated with these cognitive deficits however, remain poorly understood. We hypothesized that patients with bipolar disorder would demonstrate changes in neuronal activation in specific regions forming part of the working memory network. METHODS:Fifteen euthymic bipolar patients and fifteen age- and gender-matched healthy controls were recruited. Subjects participated in fMRI scans during which a two-back working memory task alternated with a zero-back control/attention task using a block-design paradigm. Groups were analyzed separately, and intergroup comparisons were made using an exploratory, voxel-by-voxel analysis. RESULTS:Bipolar patients performed more poorly on the cognitive tasks than did healthy controls (F = 3.77, p = 0.04). After covarying for task performance and reaction time, bipolar patients demonstrated significantly greater activation than healthy subjects in several regions including the fronto-polar prefrontal cortex, temporal cortex, basal ganglia, thalamus, and posterior parietal cortex. No areas showed a significant decrease in activation, compared with healthy controls. CONCLUSIONS:Our findings suggest that decreased working memory performance in bipolar patients reflects specific neurofunctional deficits. These deficits may represent primary areas of neuropathology or be secondary to neuropathology elsewhere in the working memory network. Continued research utilizing other imaging modalities may further clarify the underlying neuropathology involved in these cognitive deficits.
journal_name
Bipolar Disordjournal_title
Bipolar disordersauthors
Adler CM,Holland SK,Schmithorst V,Tuchfarber MJ,Strakowski SMdoi
10.1111/j.1399-5618.2004.00117.xkeywords:
subject
Has Abstractpub_date
2004-12-01 00:00:00pages
540-9issue
6eissn
1398-5647issn
1399-5618pii
BDI117journal_volume
6pub_type
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doi:10.1111/j.1399-5618.2006.00369.x
更新日期:2006-10-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,评审
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更新日期:2013-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2007.00576.x
更新日期:2008-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2011.00948.x
更新日期:2011-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,meta分析
doi:10.1111/bdi.12612
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:Despite effective pharmacological treatments for bipolar disorder, we still lack a comprehensive pathophysiological model of the illness. Recent neurobiological research has implicated a number of key brain regions and neuronal components in the behavioural and cognitive manifestations of bipolar disorder. Do...
journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1111/j.1399-5618.2009.00760.x
更新日期:2009-12-01 00:00:00
abstract:OBJECTIVES:Bipolar disorder (BD) has been associated with impairment in affective processing during depressive and manic states; however, there are limited data as to whether this population exhibits such difficulty during stable periods. We examined the pattern of affective processing in stable BD patients and compare...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2011.00906.x
更新日期:2011-03-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,随机对照试验
doi:10.1111/bdi.12594
更新日期:2018-09-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12174
更新日期:2014-09-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2011.00896.x
更新日期:2011-02-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/j.1399-5618.2010.00815.x
更新日期:2010-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12241
更新日期:2014-12-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1111/j.1399-5618.2009.00715.x
更新日期:2009-06-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12732
更新日期:2019-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2012.01009.x
更新日期:2012-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2004.00173.x
更新日期:2005-04-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2004.00164.x
更新日期:2005-02-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2010.00854.x
更新日期:2010-09-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,meta分析,评审
doi:10.1111/j.1399-5618.2006.00277.x
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVES:In this report, we seek to (i) identify a potential neuroimaging endophenotype for bipolar disorder (BD) in emotion regulatory and autonomic circuitry in young first-degree relatives of persons with BD; and (ii) replicate our previous work identifying the functional neuroanatomy of working memory (WM) in an ...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2011.00920.x
更新日期:2011-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12453
更新日期:2016-12-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1034/j.1399-5618.2000.020107.x
更新日期:2000-03-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1399-5618.2007.00530.x
更新日期:2007-09-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1034/j.1399-5618.2002.01191.x
更新日期:2002-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1111/bdi.12105
更新日期:2013-09-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2010.00847.x
更新日期:2010-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2009.00744.x
更新日期:2009-11-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1111/j.1399-5618.2012.01024.x
更新日期:2012-06-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12164
更新日期:2014-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12179
更新日期:2014-09-01 00:00:00