The Effect of Visual Experience on Perceived Haptic Verticality When Tilted in the Roll Plane.

ABSTRACT: The orientation of the body in space can influence perception of verticality leading sometimes to biases consistent with priors peaked at the most common head and body orientation, that is upright. In this study, we investigate haptic perception of verticality in sighted individuals and early and late blind adults when tilted counterclockwise in the roll plane. Participants were asked to perform a stimulus orientation discrimination task with their body tilted to their left ear side 90° relative to gravity. Stimuli were presented by using a motorized haptic bar. In order to test whether different reference frames relative to the head influenced perception of verticality, we varied the position of the stimulus on the body longitudinal axis. Depending on the stimulus position sighted partici

SUBMITTER: Cuturi LF 

PROVIDER: S-EPMC5723665 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature