Event: Neuroscience Seminar Series
“Mechanisms underlying dynamic computations in retinal circuits“
Dr. Michal Rivlin, Department of Neurobiology, Weizmann Institute of Science
A key feature of the retina is its parallel processing: the visual information is split into ~30different channels via various types of retinal ganglion cells, each encoding a specificmodality in the visual field, such as edges or motion. The modality assigned to each retinalganglion cell is classically thought to be a fixed, hardwired property, one that does notchange over the wide range of visual inputs the animal detects throughout its lifespan.Unexpectedly, recent evidence (from our lab and others) reveals that retinal neurons canchange their core computations under several circumstances. I will show how the directionselective ganglion cell, which respond to motion in one (preferred) direction, can reverse its directional preference, and suggest a possible mechanism for this reversal. I will alsodemonstrate how input coming from the brain can change the light responses of retinalcells. These dynamic computations in the retina are probably transferred to downstreamtargets, affecting all visual processes.
Monday, 27 January 2020, 11:00 am, media room, research center caesar
Host: Elhanan Ben-Yishay (email@example.com)