Oculomotor Responses to Dynamic Stimuli in a 44-Channel Suprachoroidal Retinal Prosthesis.

ABSTRACT:

Purpose

To investigate oculomotor behavior in response to dynamic stimuli in retinal implant recipients.

Methods

Three suprachoroidal retinal implant recipients performed a four-alternative forced-choice motion discrimination task over six sessions longitudinally. Stimuli were a single white bar ("moving bar") or a series of white bars ("moving grating") sweeping left, right, up, or down across a 42″ monitor. Performance was compared with normal video processing and scrambled video processing (randomized image-to-electrode mapping to disrupt spatiotemporal structure). Eye and head movement was monitored throughout the task.

Results

Two subjects had diminished performance with scrambling, suggesting retinotopic discrimination was used in the normal condition and made s

SUBMITTER: Titchener SA 

PROVIDER: S-EPMC7757638 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature