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首页> 外文期刊>Journal of the International Neuropsychological Society: JINS >Posttraumatic Psychological Symptoms are Associated with Reduced Inhibitory Control, not General Executive Dysfunction
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Posttraumatic Psychological Symptoms are Associated with Reduced Inhibitory Control, not General Executive Dysfunction

机译:创伤后的心理症状与抑制控制降低有关,而不与一般执行功能障碍有关

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摘要

Although there is mounting evidence that greater PTSD symptoms are associated with reduced executive functioning, it is not fully understood whether this association is more global or specific to certain executive function subdomains, such as inhibitory control. We investigated the generality of the association between PTSD symptoms and executive function by administering a broad battery of sensitive executive functioning tasks to a cohort of returning Operation Enduring Freedom/Operation Iraqi Freedom Veterans with varying PTSD symptoms. Only tasks related to inhibitory control explained significant variance in PTSD symptoms as well as symptoms of depression, while measures of working memory, measures of switching, and measures simultaneously assessing multiple executive function subdomains did not. Notably, the two inhibitory control measures that showed the highest correlation with PTSD and depressive symptoms, measures of response inhibition and distractor suppression, explained independent variance. These findings suggest that greater posttraumatic psychological symptoms are not associated with a general decline in executive functioning but rather are more specifically related to stopping automatic responses and resisting internal and external distractions.
机译:尽管越来越多的证据表明,更大的PTSD症状与执行功能的降低相关,但尚不完全了解这种关联是更全局的还是特定于某些执行功能子域的,例如抑制控制。我们通过将一系列敏感的执行功能任务管理给一组返回的具有不同PTSD症状的持久自由行动/伊拉克自由退伍军人,研究了PTSD症状与执行功能之间关联的一般性。只有与抑制控制有关的任务才能解释PTSD症状以及抑郁症状的显着差异,而工作记忆,切换和同时评估多个执行功能子域的措施则没有。值得注意的是,与PTSD和抑郁症状显示最高相关性的两种抑制性控制措施,即反应抑制和干扰因子抑制的措施,解释了独立方差。这些发现表明,更大的创伤后心理症状与执行功能的普遍下降无关,而是更具体地与停止自动应答以及抵抗内在和外在的分心有关。

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