A Computational Mechanism for Seeing Dynamic Deformation.

ABSTRACT: Human observers perceptually discriminate the dynamic deformation of materials in the real world. However, the psychophysical and neural mechanisms responsible for the perception of dynamic deformation have not been fully elucidated. By using a deforming bar as the stimulus, we showed that the spatial frequency of deformation was a critical determinant of deformation perception. Simulating the response of direction-selective units (i.e., MT pattern motion cells) to stimuli, we found that the perception of dynamic deformation was well explained by assuming a higher-order mechanism monitoring the spatial pattern of direction responses. Our model with the higher-order mechanism also successfully explained the appearance of a visual illusion wherein a static bar apparently deforms against a ti

SUBMITTER: Kawabe T 

PROVIDER: S-EPMC7189489 | biostudies-literature | 2020 Mar/Apr

REPOSITORIES: biostudies-literature