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DESCRIPTION:How behavioral and evolutionary constraints sculpt early visual
  processing\n\nStephanie Palmer\, University of Chicago\n	Tuesday February 
 27\, 12-1pm\n	Zoom Link: https://mcgill.zoom.us/j/86855481591\n	In Person: 5
 50 Sherbrooke\, Room 189\n	\n	Abstract: Biological systems must selectively 
 encode partial information about the environment\, as dictated by the capa
 city constraints at work in all living organisms. For example\, we cannot 
 see every feature of the light field that reaches our eyes\; temporal reso
 lution is limited by transmission noise and delays\, and spatial resolutio
 n is limited by the finite number of photoreceptors and output cells in th
 e retina. Classical efficient coding theory describes how sensory systems 
 can maximize information transmission given such capacity constraints\, bu
 t it treats all input features equally. Not all inputs are\, however\, of 
 equal value to the organism. Our work quantifies whether and how the brain
  selectively encodes stimulus features\, specifically predictive features\
 , that are most useful for fast and effective movements. We have shown tha
 t efficient predictive computation starts at the earliest stages of the vi
 sual system\, in the retina. We borrow techniques from statistical physics
  and information theory to assess how we get terrific\, predictive vision 
 from these imperfect (lagged and noisy) component parts. In broader terms\
 , we aim to build a more complete theory of efficient encoding in the brai
 n\, and along the way have found some intriguing connections between forma
 l notions of coarse graining in biology and physics.\n
DTSTART:20240227T170000Z
DTEND:20240227T180000Z
SUMMARY:QLS Seminar Series - Stephanie Palmer
URL:https://www.mcgill.ca/qls/channels/event/qls-seminar-series-stephanie-p
 almer-354438
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