Does Changing Vertical Disparity Induce Horizontal Head Movement?

ABSTRACT: Theoretically, one can estimate the direction of an object that is relative to the head using vertical disparity if the distance from the head to the object is known. However, several reports describe vertical disparity as having little or no effect on the perception of visual direction. It has been suggested, however, that the visual processes involved in action are different from those involved in perception, and the effect of visual disparity on action has not been investigated in previous studies. This study investigated the influence of vertical disparity on the stability of head direction as a motor response to visual information. We presented a stimulus consisting of horizontal lines with vertical size-disparity oscillation, and examined whether the stimulus affected the subject's h

SUBMITTER: Maekawa T 

PROVIDER: S-EPMC4565696 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature