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干扰项注意水平对选择性注意抑制过程的影响 被引量:4

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摘要 使用负启动范式考察在选择性注意的抑制过程中干扰信息获得的注意水平对抑制强度的影响.在基于客体的负启动任务和重复启动任务中,通过操纵目标项与干扰项之间的空间重叠或分离来改变目标项与干扰项获得的注意资源,进而考察干扰项注意水平的变化所引起的负启动效应的相应变化.实验结果发现,与空间分离条件相比,在部分重叠条件下产生了更大的负启动效应,说明增加对干扰项的注意水平,会使其受到的抑制作用相应地增强,这是由于注意水平的提高使得干扰项的早期激活强度增大,从而引起了更强的抑制反馈.这一结果与Houghton和Tipper的抑制模型是一致的.研究中还发现,正启动效应也随着对目标项注意水平的提高而显著增大,进一步证明了本研究操纵注意水平的方法的有效性.
出处 《科学通报》 EI CAS CSCD 北大核心 2005年第15期1613-1619,共7页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:30470570和30100053)资助项目.
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参考文献32

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共引文献15

同被引文献63

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