| 对返回抑制的事件相关电位研究及注意动量流假说 |
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| 引用本文： | 罗琬华.对返回抑制的事件相关电位研究及注意动量流假说[J].西南师范大学学报(自然科学版),2004,29(5):765-768. |
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| 作者姓名： | 罗琬华 |
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| 作者单位： | 西南师范大学,物理学院,重庆,400015 |
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| 基金项目： | 国家自然科学基金资助项目(39980009). |
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| 摘 要： | 应用事件相关电位(ERP)研究返回抑制(IOR).返回抑制是指当提示和靶出现之间时间间隔延长到一定量,提示不仅不会使对靶的反应易化,反而受到抑制的现象.本实验希望探究IOR的神经机制.实验结果显示IOR效应有明显的P1和N1波出现,且易化使P1波幅增大,N1波幅减小,抑制使P1波幅减小,使N1波幅增大.这提示P1和N1波幅代表不同的神经机制.基于ERP结果及先前对IOR的注意理论解释,提出注意动量流惯性的假说,它能较好地说明IOR的ERP效应.
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| 关 键 词： | 返回抑制 时间相关电位 注意动量流 惯性 |
An ERP Study on IOR and the Attentional Momentum Current Hypothesis |
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| Abstract.An ERP Study on IOR and the Attentional Momentum Current Hypothesis[J].Journal of Southwest China Normal University(Natural Science),2004,29(5):765-768. |
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| Authors: | Abstract |
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| Abstract: | Presented in this paper is an IOR (Inhibition of Return) research based on event-related potential (ERP), which intends to investigate the neural mechanism of IOR. The results show that the ERP effect elicits significant reduction in P1 amplitude but a significant increase in N1 amplitude, which suggests that P1 and N1 originate from different neural basis. The theory of attentional momentum current inersia is introduced here, which may rationally explain the effect of IOR. |
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| Keywords: | inhibition of return event-related potential attentional momenturn current inertia |
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