Depressive thoughts limit working memory capacity in dysphoria

被引：32

作者：

Hubbard, Nicholas A. ^{[1
]}

Hutchison, Joanna L. ^{[1
,2
]}

Turner, Monroe ^{[1
]}

Montroy, Janelle ^{[3
]}

Bowles, Ryan P. ^{[3
]}

Rypma, Bart ^{[1
,2
]}

机构：

[1] Univ Texas Dallas, Sch Behav & Brain Sci, Richardson, TX 75230 USA

[2] Univ Texas SW Med Ctr Dallas, Dept Psychiat, Dallas, TX 75390 USA

[3] Michigan State Univ, Dept Human Dev & Family Studies, E Lansing, MI 48824 USA

来源：

COGNITION & EMOTION | 2016年 / 30卷 / 02期

关键词：

Depressed mood; Attention; Working memory capacity; Memory deficits; Processing speed; ADULT AGE-DIFFERENCES; SHORT-TERM-MEMORY; INDIVIDUAL-DIFFERENCES; PROCESSING-SPEED; COGNITIVE INHIBITION; EMOTION REGULATION; EXECUTIVE-CONTROL; ATTENTIONAL BIAS; OPERATION SPAN; RUMINATION;

D O I：

10.1080/02699931.2014.991694

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Dysphoria is associated with persistence of attention on mood-congruent information. Longer time attending to mood-congruent information for dysphoric individuals (DIs) detracts from goal-relevant information processing and should reduce working memory (WM) capacity. Study 1 showed that DIs and non-DIs have similar WM capacities. Study 2 embedded depressive information into a WM task. Compared to non-DIs, DIs showed significantly reduced WM capacity for goal-relevant information in this task. Study 3 replicated results from Studies 1 and 2, and further showed that DIs had a significantly greater association between processing speed and recall on the depressively modified WM task compared to non-DIs. The presence of inter-task depressive information leads to DI-related decreased WM capacity. Results suggest dysphoria-related WM capacity deficits when depressive thoughts are present. WM capacity deficits in the presence of depressive thoughts are a plausible mechanism to explain day-to-day memory and concentration difficulties associated with depressed mood.

引用

页码：193 / 209

页数：17

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