Intra-saccadic displacement sensitivity after a lesion to the posterior parietal cortex.

ABSTRACT: Visual perception is introspectively stable and continuous across eye movements. It has been hypothesized that displacements in retinal input caused by eye movements can be dissociated from displacements in the external world using extra-retinal information, such as a corollary discharge from the oculomotor system. The extra-retinal information can inform the visual system about an upcoming eye movement and accompanying displacements in retinal input. The parietal cortex has been hypothesized to be critically involved in integrating retinal and extra-retinal information. Two tasks have been widely used to assess the quality of this integration: double-step saccades and intra-saccadic displacements. Double-step saccades performed by patients with parietal cortex lesions seemed to show hypom

SUBMITTER: Fabius JH 

PROVIDER: S-EPMC7254053 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature