Emotional expectancy: Brain electrical activity associated with an emotional bias in interpreting life events

被引：50

作者：

Chung, G ^{[1
]}

Tucker, DM ^{[1
]}

West, P ^{[1
]}

Potts, GF ^{[1
]}

Liotti, M ^{[1
]}

Luu, P ^{[1
]}

Hartry, AL ^{[1
]}

机构：

[1] UNIV OREGON,DEPT PSYCHOL,EUGENE,OR 97403

来源：

PSYCHOPHYSIOLOGY | 1996年 / 33卷 / 03期

关键词：

depression; semantic cognition; expectancy; N400; P300;

D O I：

10.1111/j.1469-8986.1996.tb00419.x

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

University students in either an optimistic or pessimistic mood state read brief stories of daily life events as event-related brain potentials were collected during the final word of each story. For subjects in a pessimistic mood, a bias to expect negative outcomes was seen as an N400/P300 effect over posterior scalp regions. For subjects in an optimistic mood, a differentiation between good and bad outcomes was also observed, but it was specific to medial frontal areas. Analysis of single-trial P300 latencies suggested that semantically incongruent and mood-incongruent outcome words resulted in increased median latency of the late positive complex (LPC) and resulted in increased variability of LPC latency across trials.

引用

页码：218 / 233

页数：16

共 53 条

[1] LEARNED HELPLESSNESS IN HUMANS - CRITIQUE AND REFORMULATION [J].