Oculomotor Responses to Dynamic Stimuli in a 44-Channel Suprachoroidal Retinal Prosthesis
Samuel A Titchener, Jessica Kvansakul, Mohit N Shivdasani, James B Fallon, DAX Nayagam, Stephanie B Epp, Chris E Williams, Nick Barnes, William G Kentler, Maria Kolic, Elizabeth K Baglin, Lauren N Ayton, Carla J Abbott, Chi D Luu, Penelope J Allen, Matthew A Petoe
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2020
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, ..View full abstract
Awarded by National Health and Medical Research Council
Supported by the Clive and Vera Ramaciotti Foundation (MAP; Health Investment Grant), the Bertalli Family Foundation to the Bionics Institute, the National Health and Medical Research Council (grant 1082358 to CIA A/Prof Allen), and by the Melbourne Neuroscience Institute Australian Government Research Training Program (SAT). The Bionics Institute and the Centre for Eye Research Australia receive support from the Victorian Government through its Operational Infrastructure Program. DN, MP, ST, KY MK, EB, CA, CL, JK, WK, CW, NB, PA receive(d) funding support from Bionic Vision Technologies.