A motion aftereffect from visual imagery of motion |
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| Authors: | Jonathan Winawer Alexander C Huk Lera Boroditsky |
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| Institution: | 1. Department of Psychology and Key Laboratory of Machine Perception (Ministry of Education), Peking University, Beijing 100871, China;2. PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China;3. Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China;4. Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, China;5. Faculty of Psychology, Southwest University, Chongqing 400715, China;6. State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China;7. Department of Psychology, University of California Los Angeles, CA 90095, USA |
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| Abstract: | Mental imagery is thought to share properties with perception. To what extent does the process of imagining a scene share neural circuits and computational mechanisms with actually perceiving the same scene? Here, we investigated whether mental imagery of motion in a particular direction recruits neural circuits tuned to the same direction of perceptual motion. To address this question we made use of a visual illusion, the motion aftereffect. We found that following prolonged imagery of motion in one direction, people are more likely to perceive real motion test probes as moving in the direction opposite to the direction of motion imagery. The transfer of adaptation from imagined to perceived motion provides evidence that motion imagery and motion perception recruit shared direction-selective neural circuitry. Even in the absence of any visual stimuli, people can selectively recruit specific low-level sensory neurons through mental imagery. |
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