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DTSTART:19700329T010000
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CATEGORIES:Craik Club
SUMMARY:Single Trial Neural Circuit Dynamics Underlying Pe
 rceptual Decision-Making - Chand Chandrasekaran (B
 oston University)
DTSTART;TZID=Europe/London:20200109T130000
DTEND;TZID=Europe/London:20200109T140000
UID:TALK136564AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/136564
DESCRIPTION:Perceptual decision-making is our ability to choos
 e and perform appropriate motor acts based on lear
 ned sensory cues to achieve goals. The objective o
 f my lab is to understand the neural circuit dynam
 ics underlying this process of perceptual decision
 -making. In this three-part talk\, I will present 
 our current understanding of the decision-related 
 dynamics in dorsal premotor cortex (PMd)\, a brain
  area implicated in selecting limb movements based
  on sensory cues. I will first present results tha
 t suggest that superficial layers of PMd signal ac
 tion choice earlier than the deeper layers of PMd.
  I will then use analysis of neural population dyn
 amics in PMd during decisions and show that models
  that posit an urgency signal provide better descr
 iptions of neural dynamics and behavior compared t
 o simple accumulator models. Finally\, in the thir
 d and final part\, I will discuss my recent work o
 n using multi-area recurrent neural network models
  to model decision-related neural dynamics.
LOCATION:Kenneth Craik Room\, Craik-Marshall Building\, Dow
 ning Site
CONTACT:John Mollon
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