Upcoming Events

October 2, 2023
3:00 p.m., CVS Large Conference Room, URMC Room G-4104

Pulse trains to percepts: Using virtual patients to describe the perceptual experience generated by visual prosthetics

The field of sight restoration prostheses is making rapid progress. However, as yet, we have only limited insight into the perceptual experiences likely to be produced by this technology. Here I demonstrate a computational model that we call the ‘virtual patient’ that predicts the perceptual experience of patients with V1 cortical implants and retinal optogenetics. The model of cortical implants, which incorporates the neurophysiological architecture of V1, successfully predicts the behavioral results from participants across a wide range of previously published cortical stimulation studies describing the location, size, brightness and spatiotemporal shape of electrically induced percepts in humans. These results suggest that the perceptual quality of cortical prosthetic devices is likely to be limited by the neurophysiological organization of visual cortex, rather than engineering constraints. The model of retinal optogenetics incorporates the relatively slow signals compared to photoreceptor temporal dynamics and shows the potential limitations of current optogenetic technology to produce normal motion perception.

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October 18, 2023
12:00 p.m., Kresge Room, Meliora 269

Title TBA

Abstract: TBA

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December 6, 2023
3:00 p.m., 1W-304, School of Nursing Auditorium, Helen Wood Hall

Title TBA

There will be a reception immediately following the Knill lecture in Helen Wood Hall Vestibule at 4:00 pm.
Abstract: TBA

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January 31, 2024
3:00 p.m., Rm 2-6408, K207 Auditorium

Functional flexibility in the cortex

Abstract: TBA

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March 13, 2024
3:00 p.m., Rm 2-6408, K207 Auditorium

Translating RPE Biology into Disease Treatment Using iPS Cells

Abstract: TBA

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April 24, 2024
3:00 p.m., Rm 2-6408, K207 Auditorium

Feedforward and Feedback Interactions for Vision

Abstract: TBA

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