Neural basis of implicit motor sequence learning : Modulation of cortical power
Journal article
Lum, Jarrad A. G., Clark, Gillian M., Barhoun, Pamela, Hill, Aron T., Hyde, Christian and Wilson, Peter H.. (2023). Neural basis of implicit motor sequence learning : Modulation of cortical power. Psychophysiology. 60(2), p. Article e14179. https://doi.org/10.1111/psyp.14179
Authors | Lum, Jarrad A. G., Clark, Gillian M., Barhoun, Pamela, Hill, Aron T., Hyde, Christian and Wilson, Peter H. |
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Abstract | Implicit sequence learning describes the acquisition of serially ordered movements and sequentially structured cognitive information, that occurs without awareness. Theta, alpha and beta cortical oscillations are present during implicit motor sequence learning, but their role in this process is unclear. The current study addressed this gap in the literature. A total of 50 healthy adults aged between 19 and 37 years participated in the study. Implicit motor sequence learning was examined using the Serial Reaction Time task where participants unknowingly repeat a sequence of finger movements in response to a visual stimulus. Sequence learning was examined by comparing reaction times and oscillatory power between sequence trials and a set of control trials comprising random stimulus presentations. Electroencephalography was recorded as participants completed the task. Analyses of the behavioral data revealed participants learnt the sequence. Analyses of oscillatory activity, using permutation testing, revealed sequence learning was associated with a decrease in theta band (4–7 Hz) power recorded over frontal and central electrode sites. Sequence learning effects were not observed in the alpha (7–12 Hz) or beta bands (12–20 Hz). Even though alpha and beta power modulations have long been associated with executing a motor response, it seems theta power is a correlate of sequence learning in the manual domain. Theta power modulations on the serial reaction time task may reflect disengagement of attentional resources, either promoting or occurring as a consequence of implicit motor sequence learning |
Keywords | alpha; beta; electroencephalography (EEG); implicit motor sequence learning; neural oscillations; serial reaction time (SRT) task; theta |
Year | 2023 |
Journal | Psychophysiology |
Journal citation | 60 (2), p. Article e14179 |
Publisher | Wiley Periodicals |
ISSN | 0048-5772 |
Digital Object Identifier (DOI) | https://doi.org/10.1111/psyp.14179 |
Scopus EID | 2-s2.0-85137658675 |
Open access | Published as ‘gold’ (paid) open access |
Page range | 1-16 |
Publisher's version | License File Access Level Open |
Output status | Published |
Publication dates | |
Online | 10 Sep 2022 |
Publication process dates | |
Accepted | 17 Aug 2022 |
Deposited | 19 Jan 2023 |
https://acuresearchbank.acu.edu.au/item/8y9w2/neural-basis-of-implicit-motor-sequence-learning-modulation-of-cortical-power
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Publisher's version
OA_Lum_2022_Neural_basis_of_implicit_motor_sequence.pdf | |
License: CC BY-NC-ND 4.0 | |
File access level: Open |
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