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X-WR-CALDESC:Events for ARNI
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DTSTART:20230101T000000
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DTSTART;TZID=UTC:20240816T113000
DTEND;TZID=UTC:20240816T130000
DTSTAMP:20260501T002820
CREATED:20240813T191128Z
LAST-MODIFIED:20240813T215322Z
UID:1014-1723807800-1723813200@arni-institute.org
SUMMARY:CTN Claudia Clopath
DESCRIPTION:Title: Feedback-based motor control can guide plasticity and drive rapid learning \nAbstract: Animals use afferent feedback to rapidly correct ongoing movements in the presence of a perturbation. Repeated exposure to a predictable perturbation leads to behavioural adaptation that counteracts its effects. Primary motor cortex (M1) is intimately involved in both processes\, integrating inputs from various sensorimotor brain regions to update the motor output. Here\, we investigate whether feedback-based motor control and motor adaptation may share a common implementation in M1 circuits. We trained a recurrent neural network to control its own output through an error feedback signal\, which allowed it to recover rapidly from external perturbations. Implementing a biologically plausible plasticity rule based on this same feedback signal also enabled the network to learn to counteract persistent perturbations through a trial-by-trial process\, in a manner that reproduced several key aspects of human adaptation. Moreover\, the resultant network activity changes were also present in neural population recordings from monkey M1. Online movement correction and longer-term motor adaptation may thus share a common implementation in neural circuits.
URL:https://arni-institute.org/event/claudia-clopath/
LOCATION:Zuckerman Institute – L5-084\, 3227 Broadway\, New York\, NY\, United States
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