Glazebrook Cheryl M, Gonzalez Claudia, Lyons Jim, Elliott Digby
Department of Physical Therapy, University of Toronto, Ontario, Canada.
Can J Exp Psychol. 2010 Jun;64(2):102-6. doi: 10.1037/a0018308.
This study was designed to examine the impact of a delay between a self-initiated movement and a subsequent auditory event on temporal judgements of movement or sound onset. Participants watched a red dot move in a clockwise direction around a circle displayed on a computer screen and reported when they had pressed the spacebar or heard a tone. In other conditions, the movement and tone both occurred. Specifically, the tone followed the button press either immediately or after delays of 100, 250, or 400 ms. On some trial blocks, participants were asked to judge the time of the button press and on other blocks the time of the tone. When the tone occurred alone, participants' judgements were accurate. When the movement occurred alone participants exhibited an anticipatory bias. Although a delayed tone had a modest impact on judgements movement initiation, button press judgements were anticipatory in all tone delay conditions. Thusly temporal judgements associated with event binding are affected more by voluntary action than the auditory consequences of that action.
本研究旨在考察自发运动与随后听觉事件之间的延迟对运动或声音起始时间判断的影响。参与者观看一个红点在电脑屏幕上显示的圆圈中沿顺时针方向移动，并报告他们按下空格键或听到音调的时间。在其他条件下，运动和音调都会出现。具体而言，音调在按下按钮后立即出现，或者延迟100、250或400毫秒后出现。在一些试验组中，要求参与者判断按下按钮的时间，而在其他组中判断音调出现的时间。当音调单独出现时，参与者的判断是准确的。当运动单独出现时，参与者表现出预期偏差。尽管延迟的音调对运动起始判断有一定影响，但在所有音调延迟条件下，按钮按下判断都是预期性的。因此，与事件绑定相关的时间判断受自愿行动的影响比该行动的听觉后果更大。
