Computing Sound Location in the Brain

date April 8, 2016
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Friday, April 8, 2016 4:00 p.m. in ETC 4.150

Professor Nace Golding
Neuroscience Department
The University of Texas at Austin
https://neuroscience.utexas.edu

One of the most challenging computations in the brain is that of computing sound location. Horizontal sound location is computed by detecting small time differences (so-called “ITDs”) in the time of arrival of acoustic waveforms to the two ears. Remarkably, the spatial resolution of sounds along the horizontal plane corresponds to 10 µs, approximately an order of magnitude narrower than the width of the action potentials that signal sensory information. I will discuss the brain circuits that mediate sound localization as well as the biophysical adaptations that neurons have developed to process synaptic information with microsecond precision.