Crossmodal effect with rubber hand illusion and gamma-band activity
Crossmodal effect with rubber hand illusion and gamma-band activity
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DOI：
10.1111/j.1469-8986.2007.00511.x
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发表时间：
2007-05-01
期刊：
影响因子：
3.7
通讯作者：
Ohira, Hideki
中科院分区：
文献类型：
--
作者：
Kanayama, Noriaki;Sato, Atsushi;Ohira, Hideki
多模态刺激的整合被认为是促进适应行为的重要因素。虽然最近的工作已经确定了大脑区域，响应多模态刺激，时间特征还不清楚。早期的事件相关电位研究揭示了跨通道注意效应，但没有关注跨通道整合的机制。在这里，γ波段的脑电图（EEG）活动被认为是多模态整合的相关因素。参与者将触觉刺激定位在他们的手指上，同时在橡胶手上看到视觉刺激，并以与他们的手相同的姿势。使用小波变换的EEG分析表明，在伽马波段范围内（40-50 Hz）的电极间相位同步性与所考虑的模态间错觉的行为指数有关。研究结果表明，在跨模态的刺激的综合处理的高频振荡的作用。
The integration of multimodal stimuli has been regarded as important for the promotion of adaptive behavior. Although recent work has identified brain areas that respond to multimodal stimuli, the temporal features are not clear yet. Earlier event-related potential studies revealed crossmodal attention effects, but did not focus on mechanisms underlying crossmodal integration. Here, electroencephalography (EEG) activity in the gamma band was considered as a correlate of multimodal integration. Participants localized a tactile stimulus on their fingers while seeing visual stimuli on rubber hands with the same posture as their hands. EEG analyses using wavelet transform suggested that interelectrode phase synchrony in the gamma-band range (40-50 Hz) was related to behavioral indices of the intermodal illusion under consideration. The findings suggest a role of high-frequency oscillations in the integrative processing of stimuli across modalities.