Visuomotor priming
Visuomotor priming
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DOI：
10.1080/713756780
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发表时间：
1998-03-01
期刊：
影响因子：
2
通讯作者：
Umilta, C
中科院分区：
文献类型：
--
作者：
Craighero, L;Fadiga, L;Umilta, C
通过两个实验探讨了视觉启动效应的可能性。参与者被要求注视电脑屏幕上的十字架，当十字架改变颜色时（“走”信号），他们用右手抓住两个物体中的一个。参与者事先知道要抓住的物体的性质和适当的运动反应。之前（100毫秒），同时或之后（100毫秒）的“去”信号，一个物体（素数）的二维图片，集中在固定十字架，提出。素数并不能预测被抓取物体的性质。有一个全等条件，在这个条件下，质数描绘了要抓取的对象;一个不全等条件，在这个条件下，质数描绘了另一个对象;还有一个中性条件，在这个条件下，没有质数被显示出来，或者质数描绘了一个不属于要抓取的对象集合的对象。结果发现，在一致的条件下，反应时间开始抓运动减少。这些结果提供了视觉启动的证据。
Two experiments were performed to explore a possible visuomotor priming effect. The participants were instructed to fixate a cross on a computer screen and to respond, when the cross changed colour ("go" signal), by grasping one of two objects with their right hand. The participants knew in advance the nature of the to-be-grasped object and the appropriate motor response. Before (100 msec), simultaneously with or after (100 msec) the "go" signal, a two-dimensional picture of an object (the prime), centred around the fixation cross, was presented. The prime was not predictive of the nature of the to-be-grasped object. There was a congruent condition, in which the prime depicted the to-be-grasped object, an incongruent condition, in which the prime depicted the other object, and a neutral condition, in which either no prime was shown or the prime depicted an object that did not belong to the set of to-be-grasped objects. It was found that, in the congruent condition, reaction time for initiating a grasping movement was reduced. These results provide evidence of visuomotor priming.