Next Talk

Speaker: John Rinzel
Title: Bistable Dynamics of Perceiving Ambiguous Stimuli
Date and time: October 28, 1:00 p.m. (light refreshments at 12:45 p.m.)
Venue: WWH 1302


When experiencing an ambiguous sensory stimulus (e.g., the vase-faces image), subjects may report random alternations (time scale, seconds) between the possible interpretations. I will describe dynamical models for neuronal populations that compete through mutual inhibition for dominance - showing alternations, behaving as noisy oscillators or as multistable systems subject to noise-driven switching. In highly idealized formulations networks are percept specific without direct representation of stimulus features. Our recent work involves perception of ambiguous auditory stimuli (e.g., ). The models explicitly incorporate tone features -- perceptual selectivity is emergent rather than built-in.

About this seminar

This seminar is meant to benefit young mathematicians, particularly graduate students and postdocs.
It aims to accomplish the following: The research talks should be fairly introductory and accessible to students and non-specialists in the audience.

Schedule Fall 2016

October 7

Speaker: Carlos Fernandez-Granda
Title:From Seismology to Compressed Sensing and Back, a Brief History of Optimization-Based Signal Processing

October 28

Speaker: John Rinzel
Title:Bistable Dynamics of Perceiving Ambiguous Stimuli

November 4

Speaker: Scott Armstrong

November 18

Speaker: Nan Chen

December 2

Speaker: Petter Kolm
Title:Multi-period Portfolio Selection and Bayesian Dynamic Models

Contact Info

If you would like to give a talk or ask a question about the seminar, please contact one of the seminar organizers:

Alexisz Gaalgaal [at] cims [dot] nyu [dot] edu
Reza Gheissarireza [at] cims [dot] nyu [dot] edu

Previous semesters

Spring 2016 schedule

Fall 2015 schedule

Spring 2015 schedule

Fall 2014 schedule

Spring 2014 schedule

Fall 2013 schedule

Spring 2013 schedule

Fall 2012 schedule

Spring 2013 schedule

Fall 2011 schedule

Spring 2011 schedule

Descriptions of earlier talks are here.

Department of Mathematics
Courant Institute of Mathematical Sciences
New York University
251 Mercer St.
New York, NY 10012