视觉工作记忆负载对偏差干扰调控的ERP研究

发布时间：2018-02-10 14:00

本文关键词： 偏差干扰工作记忆负载 Oddball 差异波　出处：《心理学探新》2014年04期 　论文类型：期刊论文

【摘要】：采用事件相关电位技术(ERPs),对听视跨通道不同工作记忆负载下偏差干扰效应的加工机制进行研究。当视觉线索50%时,比较有无工作记忆负载条件下偏差干扰效应,分析偏差刺激与标准刺激诱发的差异波,结果发现:(1)存在工作记忆负载和偏差干扰效应;(2)有无工作记忆负载下差异波均出现明显的N1/MMN成分、NP3和RON成分;(3)差异波中N1/MMN成分的平均波幅和潜伏期均没有差异,NP3成分的平均波幅下降;RON成分在平均波幅上没有差异,潜伏期上有工作记忆负载下显著小于无工作记忆负载。研究表明视觉工作记忆负载对偏差干扰调控过程的神经机制并不会因为无关信息与相关信息间冲突竞争增强而改变。
[Abstract]:Using the event-related potentials (ERPs), the cross modality of different working memory load on processing mechanism under the deviation of interference effects. When visual cues 50%, had no interference effect of working memory load deviation condition, difference analysis and standard deviation stimulation induced stimulation wave, results showed that: (1) working memory load and the deviation of interference effect; (2) there is no difference in working memory load wave appeared clear N1/MMN component, NP3 component and RON; (3) the average amplitude and latency difference wave N1/MMN component, there were no differences between the mean amplitude of NP3 component, RON component decreased; there was no difference in the average amplitude a working memory load latency, significantly less than working memory load. The results indicate that the neural mechanism of visual working memory load deviation regulation process and not because of the interference of irrelevant information and related information conflict Competition increases and changes.

【作者单位】：江西师范大学心理学院江西省心理与认知科学重点实验室;东北师范大学心理学院;
【基金】：中国博士后科学基金项目(2014M551862) 江西师范大学博士启动基金项目江西省博士后科研择优资助项目(2014KY53)
【分类号】：B842

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