Mental Practice Modulates Functional Connectivity Between the Cerebellum and the Primary Motor Cortex

Monany, Dylan Rannaud; Lebon, Florent; DuPont, William H.; Papaxanthis, Charalambos

doi:10.2139/ssrn.4017902

Cited by 2 publications

(4 citation statements)

References 30 publications

(13 reference statements)

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“…The current findings are in accordance with the previous literature, showing that both MP and PP lead to the accomplishment of faster and more accurate movements (Gentili et al, 2006, 2010; Rannaud Monany et al, 2022a). It is currently assumed that the improvement of performance induced by MP and PP relies on neural adaptations that occur through an overlapping cortico-subcortical network.…”

Section: Discussionsupporting

confidence: 93%

“…The motor task consisted of a computerized version of the sequential finger-tapping task (Rannaud Monany et al, 2022a). The participants were seated in front of a customized keyboard and performed a sequence of six movements with their left-hand fingers in the following order: 1-2-4-5-3-5 (1: thumb, 2: index finger, 3: middle finger, 4: ring finger, 5: pinky), as fast and accurately as possible.…”

Section: Methodsmentioning

confidence: 99%

“…Among these, mental practice (MP) based on motor imagery, namely the mental simulation of movements without concomitant motor output, is well documented. Several studies reported positive effects of MP on motor acquisition and consolidation, considering parameters such as movement speed or accuracy (Gentili et al, 2006, 2010; Rannaud Monany et al, 2022a). The positive effects of MP come from the activation of neural structures involved during PP (Hétu et al, 2013; Kilteni et al, 2018), as well as neuronal adaptations that sustain both motor acquisition and consolidation (Ruffino et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Optimizing the Benefits of Mental Practice on Motor Acquisition and Consolidation with Moderate-Intensity Exercise

Monany

Lebon

Papaxanthis

2022

Preprint

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The optimization of mental practice (MP) protocols matters for sport and motor rehabilitation. In this study, we were interested in the benefits of aerobic exercise in MP, given its positive effects on the acquisition and consolidation of motor skills induced by physical practice (PP). Four experimental groups were tested: i) physical practice without exercise (PP-Rest), ii) mental practice without exercise (MP-Rest), iii) mental practice preceded by Exercise (Exe- MP), and iv) mental practice followed by Exercise (MP-Exe). We hypothesized that exercise before MP would potentiate motor acquisition, whereas exercise after MP would further promote motor consolidation. Motor performance (movement speed and accuracy) was measured during a sequential finger tapping task before (Pre-Test), immediately after (Post- Test 0h, acquisition), and one day after practice (Post-Test 24h, consolidation). Results suggest that exercise before MP did not additionally improve motor acquisition in comparison to the MP-Rest group. Interestingly, aerobic exercise after MP further increased performance during motor consolidation, at the level of the PP-Rest group. This novel finding represents a promising advance in the optimization of mental practice protocols in sport-related and rehabilitation settings.

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Section: Discussionsupporting

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimizing the Benefits of Mental Practice on Motor Acquisition and Consolidation with Moderate-Intensity Exercise

Monany

Lebon

Papaxanthis

2022

Preprint

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“…Moreover, the opposite higher level of SICI during MI (vs. rest) observed with PA current reflect the activation of inhibitory inputs received from the somatosensory cortex and the supplementary motor area, both areas known to functionally inhibit M1 when imagining (Kasess et al, 2008; Oldrati et al, 2021). Finally, it is also possible that the cerebellum, which facilitates M1 excitability during MI (Rannaud Monany et al, 2022; Tanaka et al, 2018), also contributes to the result of the current study because the influence of the cerebellum on M1 might occur via interactions with specific I‐waves generating circuits (Spampinato et al, 2020).…”

Section: Discussionmentioning

confidence: 91%

The recruitment of indirect waves within primary motor cortex during motor imagery: A directional transcranial magnetic stimulation study

Neige

Ciechelski

Lebon

2022

Eur J of Neuroscience

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Motor imagery (MI) refers to the mental simulation of an action without overt movement. While numerous transcranial magnetic stimulation (TMS) studies provided evidence for a modulation of corticospinal excitability and intracortical inhibition during MI, the neural signature within the primary motor cortex is not clearly established. In the current study, we used directional TMS to probe the modulation of the excitability of early and late indirect waves (I‐waves) generating pathways during MI. Corticospinal responses evoked by TMS with posterior–anterior (PA) and anterior–posterior (AP) current flow within the primary motor cortex evoke preferentially early and late I‐waves, respectively. Seventeen participants were instructed to stay at rest or to imagine maximal isometric contractions of the right flexor carpi radialis. We demonstrated that the increase of corticospinal excitability during MI is greater with PA than AP orientation. By using paired‐pulse stimulations, we confirmed that short‐interval intracortical inhibition (SICI) increased during MI in comparison to rest with PA orientation, whereas we found that it decreased with AP orientation. Overall, these results indicate that the pathways recruited by PA and AP orientations that generate early and late I‐waves are differentially modulated by MI.

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Mental Practice Modulates Functional Connectivity Between the Cerebellum and the Primary Motor Cortex

Cited by 2 publications

References 30 publications

Optimizing the Benefits of Mental Practice on Motor Acquisition and Consolidation with Moderate-Intensity Exercise

Optimizing the Benefits of Mental Practice on Motor Acquisition and Consolidation with Moderate-Intensity Exercise

The recruitment of indirect waves within primary motor cortex during motor imagery: A directional transcranial magnetic stimulation study

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