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暗示性动作与箭头线索诱发的观察者空间注意转移-ERPs研究 ; Spatial attention shift induced by implied action and arrow cues: an ERP study

Published in 2016 by 李开云, 傅小兰
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

中国科学院心理研究所 ; 目的:采用ERPs技术考察暗示性扔动作、箭头线索及站立姿态诱发空间注意转移的机制。 方法:中央线索提示任务:中央呈现扔、箭头或站立线索(300ms), 间隔300/400/500ms的注视点后, 要求被试对随机地出现在线索左侧或右侧外周视野的“×”做快速准确的位置判断。 结果:线索锁时时, 扔动作诱发前部注意指向负波(200-450ms)和晚期注意指向正波(450-550ms);箭头诱发早期注意指向负波(100-150ms)和晚期注意指向正波;站立线索没有诱发注意指向波。目标锁时时, 对比线索提示无效位置目标和提示有效位置目标诱发的P3a(200-400ms)和P3b(200-400ms), 扔动作条件下诱发更大的P3a和P3b, 箭头条件下诱发更大的P3b, 站立条件下不存在任何差异。 结论:暗示性动作和箭头诱发空间注意转移的机制存在差异。