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IS&T Seminar: Seeing Space Through Time

August 28, 2013
Time: 3:00 - 4:00 PM
Location: TA-3, Bldg. 1690, Room 102 (CNLS Conference Room)

Speaker: Michele Rucci, Boston University

Abstract:  Our eyes are never at rest.  Even when we attempt to maintain fixation on a stationary point, microscopic eye movements keep the stimulus on the retina always in motion.  This talk will focus on the effects of fixational eye movements on the visual input and on the neural encoding of visual information.  I will argue that fixational eye movements are part of an encoding strategy, tuned to the characteristics of the natural world, which reformats spatial information into a temporal code.  In a continually moving eye, this space-time transformation eliminates input redundancies before any neural processing takes place and starts the process of edge extraction already at the level of the retina.  On the basis of behavioral and computational results, I will argue that that perception and motor behavior are more intimately tied than commonly thought: visual representations are intrinsically sensory-motor from the very early processing stages.

Biography: 
Michele Rucci is an Associate Professor of Psychology at Boston University and member of Boston University's Graduate Program in Neuroscience, the Vision Research Core, the Center for Neuroscience, and the Center for Computational Neuroscience and Neural Technology.  He received his Laurea and Ph.D. degrees, both in biomedical engineering, from the University of Florence and the Scuola Superiore S. Anna in Pisa, respectively.  Before joining Boston University, Dr. Rucci was a Fellow in Computational Neuroscience at the Neurosciences Institute in San Diego.  His research focuses on the interactions between perception and behavior by integrating experiments in visual psychophysics with computational models of the brain and the embodiment of neuronal models in robotic systems.  Research in his laboratory has revealed contributions from microscopic eye movements to fine spatial vision, has raised specific hypotheses on the influences of eye movements in the neural encoding of visual information and in visual development, and has led to robots directly controlled by models of the brain.

Download announcement here.

For more information contact the technical host Jennie Schei Disterhaupt, jlschei@lanl.gov, 667-8826.



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