Fischer M H
Department of Psychology, University of Dundee, Scotland.
Exp Brain Res. 2001 Jan;136(2):224-30. doi: 10.1007/s002210000571.
A recent report that hand transport was sensitive to a size-contrast illusion (SCI) implied that the distinction between visual processing for perception versus action might only affect visual information obtained late during reaching. In this study, the presence of a perceptual SCI did not affect reaction time, movement time, or movement amplitude. However, both perception and action became sensitive to the SCI with memory-based responses. It is concluded that the distinction between visual processing for perception versus action does extend to hand transport. Immediate action is entirely based on veridical visuo-motor representations, whereas even slightly delayed actions begin to reflect distorted perceptual representations.
最近一份关于手动运输对大小对比错觉（SCI）敏感的报告表明，用于感知与行动的视觉处理之间的区别可能仅影响伸手过程后期获得的视觉信息。在本研究中，感知性SCI的存在并未影响反应时间、运动时间或运动幅度。然而，对于基于记忆的反应，感知和行动都变得对SCI敏感。得出的结论是，用于感知与行动的视觉处理之间的区别确实延伸到了手动运输。即时行动完全基于真实的视觉运动表征，而即使是稍有延迟的行动也开始反映出扭曲的感知表征。
