Parallel processing of affective visual stimuli

被引：37
作者：
Peyk, Peter [1 ]
Schupp, Harald T. [2 ]
Keil, Andreas [3 ]
Elbert, Thomas [2 ]
Junghoefer, Markus [4 ]
机构：
[1] Univ Basel, Dept Psychol, Basel, Switzerland
[2] Univ Konstanz, Dept Psychol, Constance, Germany
[3] Univ Florida, NIMH, Ctr Study Emot & Attent, Gainesville, FL USA
[4] Univ Munster, Inst Biomagnetism & Biosignalanalysis, Munster, Germany
来源：
PSYCHOPHYSIOLOGY | 2009年 / 46卷 / 01期
关键词：
ERP; Emotion; Attention; Rapid serial visual presentation; NEURAL MECHANISMS; BRAIN MECHANISMS; ERP ANALYSIS; EMOTION; ATTENTION; PERCEPTION; ACTIVATION; CORTEX; POTENTIALS; AWARENESS;
D O I：
10.1111/j.1469-8986.2008.00755.x
中图分类号：
B84 [心理学];
学科分类号：
04 ; 0402 ;
摘要：
Event-related potential (ERP) studies of affective picture processing have demonstrated an early posterior negativity (EPN) for emotionally arousing pictures that are embedded in a rapid visual stream. The present study examined the selective processing of emotional pictures while systematically varying picture presentation rates between 1 and 16 Hz. Previous results with presentation rates up to 5 Hz were replicated in that emotional compared to neutral pictures were associated with a greater EPN. Discrimination among emotional and neutral contents was maintained up to 12 Hz. To explore the notion of parallel processing, convolution analysis was used: EPNs generated by linear superposition of slow rate ERPs explained 70%-93% of the variance of measured EPNs, giving evidence for an impressive capacity of parallel affective discrimination in rapid serial picture presentation.
引用
收藏
页码：200 / 208
页数：9
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