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DTSTART;TZID=America/Los_Angeles:20241119T110000
DTEND;TZID=America/Los_Angeles:20241119T120000
DTSTAMP:20260421T144033
CREATED:20240925T223533Z
LAST-MODIFIED:20240925T223718Z
UID:10000593-1732014000-1732017600@brain.uci.edu
SUMMARY:Katalin Gothard\, MD\, Ph.D.
DESCRIPTION:The James L. McGaugh Distinguished Seminar will host guest speaker Dr. Katalin Gothard\, Professor of Physiology\, Neurology\, and Neuroscience\, from The University of Arizona \n“A context-dependent switch from sensing to feeling in the primate amygdala” \nTactile signals elicited in the periphery by social and affective touch acquire emotional significance in the brain. As the amygdala processes the valence of all sensory stimuli\, we predicted that the positive valence of grooming would strongly activate the monkey amygdala. To test this hypothesis\, we compared neural activity in the amygdala and the primary somatosensory cortex in response to social grooming and gentle airflow delivered to the same areas of the skin. Neurons in the somatosensory cortex responded to both types of tactile stimuli. In the amygdala\, however\, neurons did not respond to individual grooming sweeps even though grooming elicited autonomic states indicative of positive affect. Instead of responses to individual touch stimuli\, a large proportion of neurons showed enhanced or suppressed baseline firing rates that persisted throughout a grooming bout. These changes were attributed to social context because the presence of the groomer alone could account for increases or decreases in baseline firing rates. It appears\, therefore\, that during grooming\, the amygdala stops responding to external inputs on a short time scale but remains responsive to social context\, and the associated affective states\, on longer time scales. \n 
URL:https://brain.uci.edu/event/katalin-gothard-md-ph-d/
LOCATION:CNLM Herklotz Conference Center\, Irvine\, CA\, 92697\, United States
CATEGORIES:Faculty,Scientific,Staff,Students,Students, Faculty, Staff Only
ATTACH;FMTTYPE=image/png:https://brain.uci.edu/wp-content/uploads/sites/49/2024/09/Jeffrey-Krichmar-Ph.D.-10.png
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DTSTART;TZID=America/Los_Angeles:20241119T140000
DTEND;TZID=America/Los_Angeles:20241119T153000
DTSTAMP:20260421T144033
CREATED:20241104T223119Z
LAST-MODIFIED:20241105T234808Z
UID:10000626-1732024800-1732030200@brain.uci.edu
SUMMARY:James Antony\, PhD
DESCRIPTION:The UC Irvine Department of Neurobiology and Behavior will host guest speaker Dr. James Antony\, Assistant Professor at California Polytechnic State University. \nMaking memories last: Factors that promote memory persistence \nHow do memories persist? In this talk\, I will investigate various factors that promote long-term memory. First\, I will show how moment-to-moment predictions made during perception – and errors in those predictions (surprises) – affect memory in laboratory and real-world settings. I have found that surprise affects neural responses and enhances memory for events that unfold on a variety of timescales\, from short (seconds) to long (hours to months). Second\, I will discuss how error within a computational model of the hippocampus can be used to explain the well-known benefits of distributing learning over time. And finally\, I will demonstrate how relationships among stimuli at encoding allow one to create well-fortified\, integrated memories that last. Cumulatively\, these findings significantly contribute to understanding memory persistence\, and they could aid in developing methods for improving learning in educational settings and in populations suffering from memory deficits.
URL:https://brain.uci.edu/event/james-antony-phd/
LOCATION:CNLM Herklotz Conference Center and Virtually via Zoom
CATEGORIES:Scientific,Staff,Students,Students, Faculty, Staff Only
ATTACH;FMTTYPE=image/png:https://brain.uci.edu/wp-content/uploads/sites/49/2024/11/Untitled-design.png
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