Cognitive, Affective, and Motivational Changes during Ostracism: An ERP, EMG, and EEG Study Using a Computerized Cyberball Task
作者： Taishi Kawamoto , Hiroshi Nittono , Mitsuhiro Ura
DOI: 10.1155/2013/304674
关键词:
摘要: Individuals are known to be highly sensitive signs of ostracism, such as being ignored or excluded; however, the cognitive, affective, and motivational processes underlying ostracism have remained unclear. We investigated temporal changes in these psychological states resulting from ostracized by a computer. Using event-related brain potentials (ERPs), facial electromyogram (EMG), electroencephalogram (EEG), we focused on P3b amplitude, corrugator supercilii activity, frontal EEG asymmetry, which reflect attention directed at stimuli, negative affect, approach/withdrawal motivation, respectively. Results activity replicated findings previous studies humans. The mean amplitude wave decreased, EMG increased over time. In addition, asymmetry changed relative left activation, suggestive approach right indicative withdrawal motivation. These suggest that computer-generated opponent is an aversive experience time status people, similar human. Our also imply useful index for investigating ostracism. this study has well developed neurobiological foundations.
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