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[CCICADA-announce] DIMACS/CCICADA Interdisciplinary Seminar Series

Linda Casals lindac at
Tue Sep 24 11:03:33 EDT 2013


DIMACS/CCICADA Interdisciplinary Seminar Series Presents
Title: The Neural Dynamics of Decision Making: Multiple Scales and a Range of Models

Speaker: Philip Holmes, Princeton University

Date: Monday, September 30, 2013 11:00am - 12:00pm

Location: DIMACS Center, CoRE Bldg, Room 431, Rutgers University                 
             Busch Campus, Piscataway, NJ


I will describe a range of models, from cellular to cortical scales,
that illuminate how we accumulate evidence and make simple
decisions. Large networks composed of individual spiking neurons can
capture biophysical details of synaptic transmission and neuro
modulation, but their complexity renders them opaque to
analysis. Employing methods of mean field and dynamical systems
theory, I will argue that these high-dimensional stochastic
differential equations can be approximately to simple drift-diffusion
(DD) processes like those used to fit behavioral data in cognitive
psychology. The DD models are analytically tractable, coincide with
optimal methods from statistical decision theory, and prompt new
experiments as well as questions on why we fail to optimize. If time
permits, I will describe work in progress on a multi-area model of
attention and decision making.

The talk will draw on joint work with Fuat Balci, Rafal Bogacz,
Jonathan Cohen, Philip Eckhoff, Sam Feng, Mike Schwemmer, Eric
Shea-Brown, Patrick Simen, Marieke van Vugt, KongFatt Wong-Lin and
Miriam Zacksenhouse. Research supported by NIMH and AFOSR.

DIMACS/CCICADA Interdisciplinary Series 

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