Influence of the visuo-proprioceptive illusion of movement and motor imagery of the wrist on EEG cortical excitability among healthy participants

Franc, Salomé Le; Fleury, Mathis; Jeunet, Camille; Butet, Simon; Barillot, Christian; Cogné, Michel; Lécuyer, Anatole

doi:10.1371/journal.pone.0256723

Cited by 5 publications

(3 citation statements)

References 53 publications

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“…Second, EEG modulations during finger stimulation are not hemispherically specific. According to [35, 36], mental imagery of finger movements, as well as tactile stimulation of the fingers, result in bilateral μ -ERD patterns whereas stimulation of more proximal parts of the arm cause predominantly contralateral ERD patterns [37, 38].…”

Section: Methodsmentioning

confidence: 99%

Event-Related Desynchronization induced by Tactile Imagery: an EEG Study

Yakovlev

Syrov

Miroshnikov

et al. 2022

Preprint

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It is well known that both the movement of the hand itself and the mental representation of it lead to event-related desynchronization (ERD) of EEG recorded over the corresponding motor areas of the cerebral cortex. Similarly, in somatosensory cortical areas, ERD occurs upon tactile stimulation of the hand, but whether this effect is caused by mental representation of sensations from tactile stimulation remains poorly understood. In the present study, the effects on the EEG of imaginary vibrotactile sensations on the right hand were compared with the effects of real vibrotactile stimulation. Both actual vibrotactile stimulation and mental representation of it have been found to elicit contralateral ERD patterns, particularly prominent in the μ-band and most pronounced in the C3 region. The paper discusses tactile imagery as a part of the complex sensorimotor mental image and its prospects for using EEG patterns of imagery-induced tactile sensations as control signals in BCI circuits independently and when combined with ERD based on movement imagination to improve the efficiency of neurointerface technologies in rehabilitation medicine, in particular, to restore movements after a stroke and neurotrauma.

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Section: Methodsmentioning

confidence: 99%

Event-Related Desynchronization induced by Tactile Imagery: an EEG Study

Yakovlev

Syrov

Miroshnikov

et al. 2022

Preprint

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“…Second, EEG modulations during finger stimulation are not hemispherically specific. According to (Vasilyev et al, 2016;Genna et al, 2017), mental imagery of finger movements, as well as tactile stimulation of the fingers, result in bilateral m-ERD patterns whereas stimulation of more proximal parts of the arm cause predominantly contralateral ERD patterns (Le Franc et al, 2021;Li et al, 2021). Third, we wanted to avoid any potential association of TS with motor movements which could have been the case for stimulation of the finger.…”

Section: Selection Of the Site For Tactile Stimulation And Imagerymentioning

confidence: 99%

Event-Related Desynchronization Induced by Tactile Imagery: an EEG Study

Yakovlev

Syrov

Miroshnikov

et al. 2023

eNeuro

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It is well-known that both hand movements and mental representations of movement lead to event-related desynchronization (ERD) of the electroencephalogram (EEG) recorded over the corresponding cortical motor areas. However, the relationship between ERD in somatosensory cortical areas and mental representations of tactile sensations is not well-understood. In this study, we employed EEG recordings in healthy humans to compare the effects of real and imagined vibrotactile stimulation of the right hand. Both real and imagined sensations produced contralateral ERD patterns, particularly in the μ-band and most significantly in the C3 region. Building on these results and the previous literature, we discuss the role of tactile imagery as part of the complex body image and the potential for using EEG patterns induced by tactile imagery as control signals in brain-computer interfaces (BCIs). Combining this approach with motor imagery could improve the performance of BCIs intended for rehabilitation of sensorimotor function after stroke and neural trauma.Significance StatementIn this study, we address the issue of mental representations in the somatosensory domain. By assessing the dynamics of sensorimotor EEG rhythms and the distribution of topographical EEG patterns, we demonstrate that tactile imagery produces event-related desynchronization in the contralateral EEG, even in the absence of physical stimulation. Our results clarify the neurophysiological mechanisms underlying the occurrence of ERD in the mu rhythm and its relationship to somatosensory cortical processing.

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“…This is in line with the studies that showed contralateral ERD in the mu & beta band in response to motor illusion vibrations (Yao et al, 2015; Schneider et al, 2021). Furthermore, providing motor illusion vibrations during MI allowed for stronger ERD than MI alone did (Le Franc et al, 2021). However, these authors noted that the ERD in response to passive vibrations was not different from the ERD during the MI with vibrations condition.…”

Section: Discussionmentioning

confidence: 99%

Influence of feedback transparency on motor imagery neurofeedback performance: the contribution of agency

Dussard,

Pillette,

Dumas

et al. 2024

Preprint

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ObjectiveNeurofeedback (NF) is a cognitive training procedure based on real-time feedback (FB) on the participant’s brain activity that they must learn to self-regulate. The visual FB traditionally delivered in a NF task manifests as a filling gauge reflecting a measure of brain activity. This abstract visual FB is not transparently linked—from the subject’s perspective— to the task performed (e.g., motor imagery). This may decrease the sense of agency, the participants’ reported control over FB. We assessed the influence of FB transparency on NF performance and the role of agency in this relationship.ApproachParticipants performed a NF task using motor imagery to regulate brain activity measured using electroencephalography. In separate blocks, participants experienced three different conditions designed to vary transparency: FB was presented as either 1) an oscillating pendulum, 2) a clenching virtual hand, 3) a clenching virtual hand combined with a motor illusion induced by tendon vibration.Main resultsWe found that FB transparency influences NF performance. Transparent visual FB provided by the virtual hand resulted in significantly better NF performance than the abstract FB of the pendulum. Surprisingly, adding a motor illusion to the virtual hand significantly decreased performance relative to the virtual hand alone. We found that self-reported agency was significantly associated with NF performance at the within-subject level across all FB types.SignificanceOur results highlight the relevance of transparent FB but also the importance of FB eliciting a strong sense of agency. This factor is likely an important consideration in designing multimodal FB, which while usually recommended, should be tailored to maximize the sense of agency in order to improve NF performance and learning outcomes.

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Influence of the visuo-proprioceptive illusion of movement and motor imagery of the wrist on EEG cortical excitability among healthy participants

Cited by 5 publications

References 53 publications

Event-Related Desynchronization induced by Tactile Imagery: an EEG Study

Event-Related Desynchronization induced by Tactile Imagery: an EEG Study

Event-Related Desynchronization Induced by Tactile Imagery: an EEG Study

Influence of feedback transparency on motor imagery neurofeedback performance: the contribution of agency

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