Patrick Wiegel: Oscillatory dynamics during reinforcement motor learning
| When |
Nov 17, 2020
from 05:15 PM to 05:45 PM |
|---|---|
| Where | Zoom Meeting. Meeting ID and password will be sent with e-mail invitation. You can also ask Fiona Siegfried for Meeting ID and password. |
| Contact Name | Szabina Tudja |
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Abstract
Motor learning involves reinforcement processes that regulate motor responses. To test whether outcomes of past movements influence outcomes of future movements, we conducted a human motor learning study and recorded oscillatory brain signals with electroencephalography (EEG). Our results show that motor variability is largely influenced by previous motor outcomes. Motor variability is increased when previous outcomes were unsuccessful while it is decreased when outcomes were successful. Time frequency analyses and cluster-based permutation tests of EEG signals showed greater frontal beta oscillations during feedback presentation when outcomes were successful. The results suggest a role of the frontal cortex for the regulation of motor variability in human subjects.
