ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 1996, Vol. 28 ›› Issue (1): 89-96.

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听觉失匹配负波反映自动加工──感觉道间选择性注意时的新证据

傅世敏;魏景汉   

  1. 中国科学院心理研究所,中国科学院北京认知科学开放研究实验室
  • 出版日期:1996-03-25 发布日期:1996-03-25
  • 通讯作者: 傅世敏

AUDITORY MISMATCH NEGATIVTY REFLECTS AUTOMATIC PROCESS:EVIDENCE FROM INTERMODAL SELECTIVE ATTENTION PARADIGM

Fu Shimin; Wei Jinghan (Institute of Psychology,Academia Sinica,Beijing 100012)   

  • Published:1996-03-25 Online:1996-03-25

摘要: 为考察听觉失匹配负波是否反映自动加工,实验改进了视觉和听觉刺激同时呈现的感觉道间选择性注意实验模式,更好地控制了非注意听觉条件。结果发现,在注意与非注意听觉条件下,听觉偏离刺激均诱发出失匹配负波;注意听觉刺激时140-180ms的偏离相关负波与非注意时该时程负波的平均波幅之间无显著差异,而注意时180-220ms的偏离相关负波的平均波幅大于非注意时同一时程之负波;非注意听觉时失匹配负波的平均波幅和峰潜伏期不受视觉道任务难度的影响,该结果为听觉失匹配负波反映自动加工的观点提供了进一步证据。

关键词: 失匹配负波, 自动加工, 事件相关电位

Abstract: In order to testify the automaticity of auditory mismatch negativity,a renewed intermodal paradigm of selective attention in which visual and auditory stimuli were presented simultaneously was used in the present study so as to control the unattended condition better. The results showed that auditory MMN was elicited whether the auditory stimuli were attended or not and when attended, the mean amplitude during 140-180ms was equal to that of the unattended, the mean amplitude during 180-220ms was larger than that of the unattended. It was also found that the mean amplitude and peak latency of auditory MMN was not modulated by the degree of task difficulty of visual modality. Therefore, further evidence of the automaticity of auditory MMN was found in this experiment.

Key words: Mismatch negativity(MMN), Automatic process, Event-related potentials(ERPs)