盲生触摸觉表象心理扫描中的距离效应研究

On the Distance Effect in the Mental Scanning of Visually-Impaired Students' Tactile Images

参考Kosslyn和Kerr等人的心理实验,采用心理扫描的研究方法,让20名明眼学生和20名盲生看或触摸二幅不同的图画,然后记录被试扫描表象时的反应时,并要求被试在扫描完成后报告其扫描过程。结果表明,盲生在对触摸觉表象进行扫描时,也表现出了距离效应;盲生触摸觉表象扫描与明眼生视觉表象扫描之间在反应时上不存在显著差异;表象扫描中可能需要表象投射及相应的手部运动。

This study, by using for reference Kosslyn and Kerr＇ s psychological experiments and applying the method of mental scanning, tests 20 normal students and 20 blind students, who are required to observe or touch two different pictures, and report the process of scanning, and records their reactions to scanning. The results show the following： the blind students show a distance effect when they scan their tactile images; there is no sig- nificant difference between the blind students＇ tactile image scanning and the normal students＇ visual image scan- ning; in the image scanning, image projection and corresponding hand movements are likely to be needed.