Modulation of Alpha and Beta Oscillations during an n-back Task with Varying Temporal Memory Load

被引：0
|
作者：
Chen, Youguo [1 ]
Huang, Xiting [1 ]
机构：
[1] Southwest Univ, Fac Psychol, Ctr Studies Psychol & Social Dev, Key Lab Cognit & Personal,Minist Educ, Chongqing, Peoples R China
来源：
FRONTIERS IN PSYCHOLOGY | 2016年 / 6卷
基金：
中国国家自然科学基金;
关键词：
temporal information; duration; working memory; n-back task; neural oscillation; SCALAR EXPECTANCY-THEORY; WORKING-MEMORY; THETA-ACTIVITY; STIMULUS-DURATION; EEG DYNAMICS; WEBERS LAW; BRAIN; MAINTENANCE; INFORMATION; RESPONSES;
D O I：
10.3389/fpsy.2015.02031
中图分类号：
B84 [心理学];
学科分类号：
04 ; 0402 ;
摘要：
Temporal information can be retained and manipulated in working memory (WM). Neural oscillatory changes in WM were examined by varying temporal WM load. Electroencephalography was obtained from 18 subjects performing a temporal version of the visual n-back WM task (n = 1 or 2). Electroencephalography revealed that posterior alpha power decreased and temporal region-distributed beta power increased as WM load increased. This result is consistent with previous findings that posterior alpha band reflects inhibition of task-irrelevant information. Furthermore, findings from this study suggest that temporal region-distributed beta band activity is engaged in the active maintenance of temporal duration in WM.
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页数：10
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