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Neural Computations of Depth from Motion Parallax

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Air date: Monday, January 11, 2016, 12:00:00 PM
Time displayed is Eastern Time, Washington DC Local
Views: Total views: 170 (25 Live, 145 On-demand)
Category: Neuroscience
Runtime: 01:05:22
Description: NIH Neuroscience Seminar Series

Dr. DeAngelis' laboratory studies cortical circuits that mediate visual perception and visually guided behavior. This work involves a creative fusion of the disciplines of neurophysiology, psychology, and computation. Monkeys are trained to perform demanding discrimination tasks, and we record from single or multiple neurons in visual cortex during performance of these tasks. This allows them to directly compare the ability of neurons to discriminate between different sensory stimuli with the ability of the behaving animal to make the same discrimination. This approach also allows them to examine the relationship between neuronal activity and perceptual decisions (independent of the physical stimulus). In addition, the techniques of electrical microstimulation and/or reversible inactivation are used to establish causal links between physiology and behavior. Computational modeling plays an important role in interpreting results and guiding future experimentation.
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NLM Title: Neural computations of depth from motion parallax / Greg DeAngelis.
Author: DeAngelis, Gregory.
National Institutes of Health (U.S.),
Publisher:
Abstract: (CIT): NIH Neuroscience Seminar Series Dr. DeAngelis' laboratory studies cortical circuits that mediate visual perception and visually guided behavior. This work involves a creative fusion of the disciplines of neurophysiology, psychology, and computation. Monkeys are trained to perform demanding discrimination tasks, and we record from single or multiple neurons in visual cortex during performance of these tasks. This allows them to directly compare the ability of neurons to discriminate between different sensory stimuli with the ability of the behaving animal to make the same discrimination. This approach also allows them to examine the relationship between neuronal activity and perceptual decisions (independent of the physical stimulus). In addition, the techniques of electrical microstimulation and/or reversible inactivation are used to establish causal links between physiology and behavior. Computational modeling plays an important role in interpreting results and guiding future experimentation.
Subjects: Depth Perception--physiology
Vision Disparity
Publication Types: Lecture
Webcast
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Caption Text: Download Caption File
NLM Classification: WW 105
NLM ID: 101676581
CIT Live ID: 17423
Permanent link: https://videocast.nih.gov/watch=17423