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  4. Does anodal cerebellar tDCS boost transfer of after-effects from throwing to pointing during prism adaptation?
 
research article

Does anodal cerebellar tDCS boost transfer of after-effects from throwing to pointing during prism adaptation?

Fleury, Lisa  
•
Panico, Francesco
•
Foncelle, Alexandre
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September 27, 2022
Frontiers In Psychology

Prism Adaptation (PA) is a useful method to study the mechanisms of sensorimotor adaptation. After-effects following adaptation to the prismatic deviation constitute the probe that adaptive mechanisms occurred, and current evidence suggests an involvement of the cerebellum at this level. Whether after-effects are transferable to another task is of great interest both for understanding the nature of sensorimotor transformations and for clinical purposes. However, the processes of transfer and their underlying neural substrates remain poorly understood. Transfer from throwing to pointing is known to occur only in individuals who had previously reached a good level of expertise in throwing (e.g., dart players), not in novices. The aim of this study was to ascertain whether anodal stimulation of the cerebellum could boost after-effects transfer from throwing to pointing in novice participants. Healthy participants received anodal or sham transcranial direction current stimulation (tDCS) of the right cerebellum during a PA procedure involving a throwing task and were tested for transfer on a pointing task. Terminal errors and kinematic parameters were in the dependent variables for statistical analyses. Results showed that active stimulation had no significant beneficial effects on error reduction or throwing after-effects. Moreover, the overall magnitude of transfer to pointing did not change. Interestingly, we found a significant effect of the stimulation on the longitudinal evolution of pointing errors and on pointing kinematic parameters during transfer assessment. These results provide new insights on the implication of the cerebellum in transfer and on the possibility to use anodal tDCS to enhance cerebellar contribution during PA in further investigations. From a network approach, we suggest that cerebellum is part of a more complex circuitry responsible for the development of transfer which is likely embracing the primary motor cortex due to its role in motor memories consolidation. This paves the way for further work entailing multiple-sites stimulation to explore the role of M1-cerebellum dynamic interplay in transfer.

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Type
research article
DOI
10.3389/fpsyg.2022.909565
Web of Science ID

WOS:000874567400001

Author(s)
Fleury, Lisa  
Panico, Francesco
Foncelle, Alexandre
Revol, Patrice
Delporte, Ludovic
Jacquin-Courtois, Sophie
Collet, Christian
Rossetti, Yves
Date Issued

2022-09-27

Publisher

FRONTIERS MEDIA SA

Published in
Frontiers In Psychology
Volume

13

Article Number

909565

Subjects

Psychology, Multidisciplinary

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Psychology

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prism adaptation (pa)

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transfer

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cerebellum

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anodal tdcs

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sensorimotor plasticity

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direct-current stimulation

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posterior parietal cortex

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motor cortex

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sensorimotor adaptation

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spatial realignment

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error-correction

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aging brain

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task

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lesions

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vision

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
UPHUMMEL  
Available on Infoscience
November 7, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/192000
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