Abstract: 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.
Abstract: Designers of autonomous systems, embodied in an uncertain environment, have the ten-
dency to build up a world model from everything that can be perceived. In contrast to this view,
psychological researchers find for humans a selective interpretation of a scene, with phenom-
ena like inattentional blindness. Objects remain unseen if they are not central to the current
behavior, even while they are clearly within view. Previous research in the Dutch Aibo Team
has proven that also for robots behavior-specific image processing can be very beneficial. In
this article we design an experiment where we can not only indicate the appropriate moments
to limit the perception to the objects relevant to the task, but also indicate the appropriate
moments to release those limitations and to increase the overall situation awareness.