Distortions in definite distance and shape perception as measured by reaching without and with haptic feedback

被引:53
作者
Bingham, GP [1 ]
Zaal, F [1 ]
Robin, D [1 ]
Shull, JA [1 ]
机构
[1] Indiana Univ, Dept Psychol, Bloomington, IN 47405 USA
关键词
D O I
10.1037//0096-1523.26.4.1436
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Psychophysical studies reveal distortions in perception of distance and shape. Are reaches calibrated to eliminate distortions? Participants reached to the front side. or back of a target sphere. In Experiment 1, feedforward reaches yielded distortions and outward drift. In Experiment 2, haptic feedback corrected distortions and instability. In Experiment 3, feedforward caches with only haptic experience of targets replicated the shape distortions but drifted inward. This showed that outward drift in Experiment 1 was visually driven. In Experiment 4, visually guided reaches were accurate when participants used binocular vision but when they used monocular vision, reaches were distorted. Haptic feedback corrected inaccuracy and instability of distance but did not correct monocular shape distortions. Dynamic binocular vision is representative and accurate and merits further study.
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收藏
页码:1436 / 1460
页数:25
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