内源性眼跳前的空间注意转移  

SPATIAL SHIFT OF ATTENTION BEFORE ENDOGENOUS SACCADES

作　　者：沈模卫[1] 高 涛[1] 刘利春[1] 李 鹏[1] 

机构地区：[1]浙江大学心理与行为科学系,杭州310028

出　　处：《心理学报》2004年第6期663-670,共8页Acta Psychologica Sinica

基　　金：教育部高等学校博士学科点专项科研基金(20030335024)国家自然科学基金(30270463)云南省政府-浙江大学合作共建云南省心理学重点学科资助项目。

摘　　要：采用线运动错觉(illusory line motion)测量的单任务范式,以色块为眼跳提示刺激,用三个实验对内源性眼跳前是否存在空间注意转移进行了探讨。实验一要求被试将眼睛跳往提示刺激处,通过对线运动错觉的分析确定该条件下的空间注意转移规律;实验二要求被试在将视线保持在注视点处的条件下判断目标色块是否出现,以探明线运动错觉是否受对目标色块前注意阶段加工的影响;实验三要求被试将眼睛跳往提示刺激的对侧,分析眼跳位置与提示刺激空间方位的一致性对空间注意转移的影响。获得以下主要结果:(1)内源性眼跳前存在注意转移;(2)在视线保持在注视点处的条件下,注意未受对提示刺激前注意加工的引导;(3)眼跳目标位置与提示目标位置的空间一致性对眼跳前空间注意转移无显著影响。This study investigated whether the spatial shift of attention was involved in the process of endogenous sac-cades with illusory line motion. In Experiment 1, the pattern of spatial attention shift was examined by instructing participants to saccade to the cue. In Experiment 2, whether illusory line motion was affected by pre-attention processing was tested by requiring participants to detect the target while focusing on the fixation. In Experiment 3, participants were required to saccade to the opposite side of the cue, in order to inspect the effect of spatial congruence between saccade and the cue on attention shifts. Therefore, whether detection of the cue was one of the factors in determining attention shift could be confirmed. The main findings are as follows :(1) Spatial shift of attention is necessary to execute endogenous saccades; (2) Attention is not guided by pre-attention processing while the eye is focused on the fixation, and (3) The effect of spatial congruence between saccade and the cue on attention shifts is not significant.

关 键 词：内源性眼跳 注意转移 线运动错觉 前注意加工 

分 类 号：B842[哲学宗教—基础心理学]