Feature integration across space, time, and orientation.
The perception of a visual target can be strongly influenced by flanking stimuli. In static displays, performance on the target improves when the distance to the flanking elements increases-presumably because feature pooling and integration vanishes with distance. Here, we studied feature integration with dynamic stimuli. We show that features of single elements presented within a continuous motion stream are integrated largely independent of spatial distance (and orientation). Hence, space-based models of feature integration cannot be extended to dynamic stimuli. We suggest that feature integration is guided by perceptual grouping operations that maintain the identity of perceptual objects over space and time.
Otto
Thomas U
TU
Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, Switzerland. thomas.otto@parisdescartes.fr
Ogmen
Haluk
H
Herzog
Michael H
MH
D005364:Field Dependence-Independence; D006801:Humans; D009039:Motion Perception / Q000502:physiology; D009949:Orientation / Q000502:physiology*; D010775:Photic Stimulation; D013028:Space Perception / Q000502:physiology*; D013998:Time Perception / Q000502:physiology*