期刊
NEUROPSYCHOLOGIA
卷 41, 期 2, 页码 171-183出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0028-3932(02)00147-1
关键词
P1; negativity bias; ERP
资金
- NIMH NIH HHS [P50MH52384-01A1, T32-MH19728] Funding Source: Medline
- NATIONAL INSTITUTE OF MENTAL HEALTH [T32MH019728, P50MH052384] Funding Source: NIH RePORTER
Previous research has shown that negative stimuli elicit more attention than do positive stimuli. However, this research has relied on response-based measures to assess attention. The current research uses the P 1 component of the event-related brain potential (ERP) as a proximal index of attention allocation to valenced stimuli. In two studies, P1 amplitude was measured while participants evaluated positive and negative pictures. In both studies, principal components analysis showed that P1 amplitudes to frequent stimuli and to rare negative stimuli were larger than P1 amplitudes to rare positive stimuli. This is (a) evidence for the extremely rapid (<120ms) differentiation of positive and negative stimuli and (b) process-based evidence for a negativity bias in attention allocation. (C) 2002 Elsevier Science Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据