What the eye tells the brain: Visual feature extraction in the mouse retina
Schedule
Tuesday, July 7, 2020
14:00 UTC
Katrin Franke
Dr
University of Tubingen
Host: Sussex Visions
Recording
Open recording
Event Information
Recording
Available
Host
Sussex Visions
Duration
70 minutes
Abstract
Visual processing begins in the retina: within only two synaptic layers, multiple parallel feature channels emerge, which relay highly processed visual information to different parts of the brain. To functionally characterize these feature channels we perform calcium and glutamate population activity recordings at different levels of the mouse retina. This allows following the complete visual signal across consecutive processing stages in a systematic way. In my talk, I will summarize our recent findings on the functional diversity of retinal output channels and how they arise within the retinal network. Specifically, I will talk about the role of inhibition and cell-type specific dendritic processing in generating diverse visual channels. Then, I will focus on how color – a single visual feature – emerges across all retinal processing layers and link our results to behavioral output and the statistics of mouse natural scenes. With our approach, we hope to identify general computational principles of retinal signaling, thereby increasing our understanding of what the eye tells the brain.
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