Motor adaptation to an optical illusion

被引:70
作者
Glover, S [1 ]
Dixon, P [1 ]
机构
[1] Univ Alberta, Dept Psychol, Edmonton, AB T6G 2E9, Canada
关键词
optical illusions; adaptation; reaching; planning; control;
D O I
10.1007/s002210000651
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
This research investigated the effects of an orientation illusion on action, as well as the ability of the motor system to adapt to the illusion. Subjects reached out and picked up a small bar placed at various orientations. A background grating was used to induce an orientation illusion. When the direction of the illusion was reversed, the following seven trials revealed a large illusion effect in the early portion of the reach. In the subsequent seven trials, no effect of the illusion was present. This pattern of adaptation was similar to the pattern often obtained with displacing prisms, suggesting that the two types of visual distortions present the motor system with similar challenges that it meets in similar ways. These findings are consistent with a planning/control model that argues for separate visual representations underlying the planning and on-line control of reaching.
引用
收藏
页码:254 / 258
页数:5
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