Object manipulation and motion perception: evidence of an influence of action planning on visual processing.
In 3 experiments, the authors investigated the bidirectional coupling of perception and action in the context of object manipulations and motion perception. Participants prepared to grasp an X-shaped object along one of its 2 diagonals and to rotate it in a clockwise- or a counterclockwise direction. Action execution had to be delayed until the appearance of a visual go signal, which induced an apparent rotational motion in either a clockwise- or a counterclockwise direction. Stimulus detection was faster when the direction of the induced apparent motion was consistent with the direction of the concurrently intended manual object rotation. Responses to action-consistent motions were also faster when the participants prepared the manipulation actions but signaled their stimulus detections with another motor effector (i.e., with a foot response). Taken together, the present study demonstrates a motor-visual priming effect of prepared object manipulations on visual motion perception, indicating a bidirectional functional link between action and perception beyond object-related visuomotor associations.
Lindemann
Oliver
O
Donders Institute for Brain, Cognition, and Behavior, Radbound University Nijmegen, P.O. Box 9104, Nijmegen 6500, The Netherlands. o.linermann@donders.ru.nl
Bekkering
Harold
H
D006801:Humans; D033182:Intention; D009039:Motion Perception; D015999:Multivariate Analysis; D011597:Psychomotor Performance; D012399:Rotation; D017603:Signal Detection, Psychological