Effects of saccades and response type on the Simon effect: If you look at the stimulus, the Simon effect may be gone
Effects of saccades and response type on the Simon effect: If you look at the stimulus, the Simon effect may be gone
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DOI：
10.1080/17470211003802434
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发表时间：
2010-01-01
影响因子：
1.7
通讯作者：
Kerzel, Dirk
中科院分区：
文献类型：
--
作者：
Buetti, Simona;Kerzel, Dirk
西蒙效应最常被研究的是按键反应和眼睛注视。在本研究中，我们问的类型的眼动和手动响应的类型如何影响西蒙任务中的响应选择。我们研究了三种眼动指令（自发，扫视和固定），而参与者进行目标导向（即，到达）或象征性（即，手指抬起）的反应。最初，没有施加眼球运动限制，并且两种反应类型都存在西蒙效应。接下来，眼球运动受到限制。参与者要么对刺激进行扫视，要么保持注视屏幕中心。而一致性效应总是观察到达到的反应，它消失在手指抬起的反应。我们认为，从刺激到正确的反应位置在noncorresponding审判眼跳的重定向有助于西蒙效应。由于眼手耦合，这发生在一个强制性的方式与达到的反应，但不与手指抬起的反应。因此，当参与者做他们通常看到的刺激时，按键的西蒙效应消失了。
The Simon effect has most often been investigated with key-press responses and eye fixation. In the present study, we asked how the type of eye movement and the type of manual response affect response selection in a Simon task. We investigated three eye movement instructions (spontaneous, saccade, and fixation) while participants performed goal-directed (i.e., reaching) or symbolic (i.e., finger-lift) responses. Initially, no oculomotor constraints were imposed, and a Simon effect was present for both response types. Next, eye movements were constrained. Participants had to either make a saccade toward the stimulus or maintain gaze fixed in the screen centre. While a congruency effect was always observed in reaching responses, it disappeared in finger-lift responses. We suggest that the redirection of saccades from the stimulus to the correct response location in noncorresponding trials contributes to the Simon effect. Because of eye-hand coupling, this occurred in a mandatory manner with reaching responses but not with finger-lift responses. Thus, the Simon effect with key-presses disappears when participants do what they typically dolook at the stimulus.