Trial-to-trial variability and cortical processing depend on recent outcomes during human reinforcement motor learning
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Trial-to-trial variability and cortical processing depend on recent outcomes during human reinforcement motor learning. / Wiegel, Patrick; Spedden, Meaghan Elizabeth; Ramsenthaler, Christina; Beck, Mikkel Malling; Lundbye-Jensen, Jesper.
I: Neuroscience, Bind 501, 2022, s. 85-102.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Trial-to-trial variability and cortical processing depend on recent outcomes during human reinforcement motor learning
AU - Wiegel, Patrick
AU - Spedden, Meaghan Elizabeth
AU - Ramsenthaler, Christina
AU - Beck, Mikkel Malling
AU - Lundbye-Jensen, Jesper
N1 - Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.
PY - 2022
Y1 - 2022
N2 - The history of our actions and their outcomes represent important information, informing choices and efficiently guiding future behavior. While unsuccessful (S-) outcomes are expected to lead to more explorative motor states and increased behavioral variability, successful (S+) outcomes are expected to reinforce the use of the previous action. Here, we show that humans attribute different values to previous actions during reinforcement motor learning when they experience S- compared to S+ outcomes. Behavioral variability after an S- outcome is influenced more by the previous outcome than after S+ outcomes. Using electroencephalography, we show that theta band oscillations of the prefrontal cortex are most prominent during changes in two consecutive outcomes, potentially reflecting the need for enhanced cognitive control. Our results suggest that S+ experiences 'overwrite' previous motor states to a greater extent than S- experiences and that modulations in neural oscillations in the prefrontal cortex play a potential role in encoding changes in movement variability state during reinforcement motor learning.
AB - The history of our actions and their outcomes represent important information, informing choices and efficiently guiding future behavior. While unsuccessful (S-) outcomes are expected to lead to more explorative motor states and increased behavioral variability, successful (S+) outcomes are expected to reinforce the use of the previous action. Here, we show that humans attribute different values to previous actions during reinforcement motor learning when they experience S- compared to S+ outcomes. Behavioral variability after an S- outcome is influenced more by the previous outcome than after S+ outcomes. Using electroencephalography, we show that theta band oscillations of the prefrontal cortex are most prominent during changes in two consecutive outcomes, potentially reflecting the need for enhanced cognitive control. Our results suggest that S+ experiences 'overwrite' previous motor states to a greater extent than S- experiences and that modulations in neural oscillations in the prefrontal cortex play a potential role in encoding changes in movement variability state during reinforcement motor learning.
KW - Faculty of Science
KW - Reinforcement
KW - Motor learning
KW - Prefrontal cortex
KW - Variability
KW - Neural oscillations
KW - Exploration
KW - Exploitation
U2 - 10.1016/j.neuroscience.2022.08.012
DO - 10.1016/j.neuroscience.2022.08.012
M3 - Journal article
C2 - 35970424
VL - 501
SP - 85
EP - 102
JO - Neuroscience
JF - Neuroscience
SN - 0306-4522
ER -
ID: 316512630