Real-time changes in corticospinal excitability related to motor imagery of a force control task

Tatemoto, Tsuyoshi; Tsuchiya, Junko; Numata, Atsuki; Osawa, Ryuji; Yamaguchi, Tomohiko; Tanabe, Shigeo; Kondo, Kunitsugu; Otaka, Yohei; Sugawara, Kenichi

doi:10.1016/j.bbr.2017.08.020

Cited by 5 publications

(4 citation statements)

References 26 publications

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“…Thus, general anticipatory central mechanisms are thought to prepare the organism for the forthcoming effortful motor task, through the increased activity of the autonomic nervous system. MI of effortful action is also associated with increased corticospinal excitability (MEPs amplitude), as reported in TMS studies involving MI of finger (Helm et al, 2015), wrist (Tatemoto et al, 2017), and foot (Kato & Kanosue, 2017)…”

Section: Text 1 Introductionmentioning

confidence: 61%

“…In this regard, increasing kinematic information has been previously associated with increased muscular effort information conveyed during action observation (Proverbio et al, 2009). Previous TMS studies have reported enhanced corticospinal excitability during MI of finger (Helm et al, 2015), wrist (Tatemoto et al, 2017), and foot (Kato et al, 2017) movements requiring increasing effort.…”

Section: Discussionmentioning

confidence: 94%

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The Effect of Expertise on Kinesthetic Motor Imagery of Complex Actions

2020

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The ability to mentally simulate an action by recalling the body sensations relative to the real execution is referred to as kinesthetic motor imagery (MI). Frontal and parietal motor-related brain regions are generally engaged during MI. The present study aimed to investigate the time course and neural correlates of complex action imagery and possible effects of expertise on the underlying action representation processes. Professional ballet dancers and controls were presented with effortful and effortless ballet steps and instructed to mentally reproduce each movement during EEG recording. Time-locked MI was associated with an Anterior Negativity (AN) component (400-550 ms) that was larger in dancers relative to controls. The AN was differentially modulated by the motor content (effort) as a function of ballet expertise. It was more negative in response to effortful (than effortless) movements in control participants only.This effect also had a frontal distribution in controls and a centro-parietal distribution in dancers, as shown by the topographic maps of the scalp voltage. The source reconstruction (swLORETA) of the recorded potentials in the AN time-window showed enhanced engagement of prefrontal regions in controls (BA 10/47) relative to dancers, and occipitotemporal (BA 20) and bilateral sensorimotor areas in dancers (BA6/40) compared with controls. This evidence seems to suggest that kinesthetic MI of complex action relied on visuomotor simulation processes in participants with acquired dance expertise. Simultaneously, increased cognitive demands occurred in participants lacking in motor knowledge with the specific action. Hence, professional dance training may lead to refined action representation processes.

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Section: Text 1 Introductionmentioning

confidence: 61%

Section: Discussionmentioning

confidence: 94%

The Effect of Expertise on Kinesthetic Motor Imagery of Complex Actions

2020

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“…As they acquire SMR control, such imagery tends to drop away (Wolpaw and McFarland, 2004 ). Motor imagery increases corticospinal excitability (Kasai et al, 1997 ; Rossini et al, 1999 ; Stinear and Byblow, 2004 ; Stinear et al, 2006a , b ; Bakker et al, 2008 ; Kang et al, 2011 ; Gündüz and Kiziltan, 2015 ; Kato et al, 2015 ; Im et al, 2016 ; Tatemoto et al, 2017 ) and resting motoneuron excitability (Gündüz and Kiziltan, 2015 ). Studies of the impact of motor imagery on the H-reflex are less consistent in their results (Oishi et al, 1994 ; Abbruzzese et al, 1996 ; Yahagi et al, 1996 ; Bonnet et al, 1997 ; Kasai et al, 1997 ; Hashimoto and Rothwell, 1999 ; Hale et al, 2003 ; Patuzzo et al, 2003 ; Cowley et al, 2008 ; Aoyama and Kaneko, 2011 ; Jarjees and Vuckovic, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Effects of Sensorimotor Rhythm Modulation on the Human Flexor Carpi Radialis H-Reflex

et al. 2018

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People can learn over training sessions to increase or decrease sensorimotor rhythms (SMRs) in the electroencephalogram (EEG). Activity-dependent brain plasticity is thought to guide spinal plasticity during motor skill learning; thus, SMR training may affect spinal reflexes and thereby influence motor control. To test this hypothesis, we investigated the effects of learned mu (8–13 Hz) SMR modulation on the flexor carpi radialis (FCR) H-reflex in 6 subjects with no known neurological conditions and 2 subjects with chronic incomplete spinal cord injury (SCI). All subjects had learned and practiced over more than 10 < 30-min training sessions to increase (SMR-up trials) and decrease (SMR-down trials) mu-rhythm amplitude over the hand/arm area of left sensorimotor cortex with ≥80% accuracy. Right FCR H-reflexes were elicited at random times during SMR-up and SMR-down trials, and in between trials. SMR modulation affected H-reflex size. In all the neurologically normal subjects, the H-reflex was significantly larger [116% ± 6 (mean ± SE)] during SMR-up trials than between trials, and significantly smaller (92% ± 1) during SMR-down trials than between trials (p < 0.05 for both, paired t-test). One subject with SCI showed similar H-reflex size dependence (high for SMR-up trials, low for SMR-down trials): the other subject with SCI showed no dependence. These results support the hypothesis that SMR modulation has predictable effects on spinal reflex excitability in people who are neurologically normal; they also suggest that it might be used to enhance therapies that seek to improve functional recovery in some individuals with SCI or other CNS disorders.

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“…Ten participants participated in both experiments. Numerous similar studies included similar sample sizes (10–15 participants) and employed strict methodology (Aoyama et al, 2016; Bouguetoch et al, 2020; Cengiz et al, 2018; Grospretre et al, 2020; Kato & Kanosue, 2018; Tatemoto et al, 2017). All participants were right‐handed with no history of neurological or psychiatric disease and were screened for any contraindications of TMS.…”

Section: Methodsmentioning

confidence: 99%

Time course effect of corticospinal excitability for motor imagery

Takenaka

Suzuki

Sugawara

2021

Eur J of Neuroscience

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This study examined the effect of temporal changes in corticospinal excitability in motor imagery (MI) and the effect of real‐time guides for MI on excitability changes. The MI task involved wrist flexion and motor evoked potentials using transcranial magnetic stimulation were recorded and examined from the flexor carpi radialis. Ballistic (momentary MI) and tonic (continuous MI) conditions were used, and the duration of each MI was different. In Experiment 1, each MI task was performed using an acoustic trigger. In Experiment 2, a real‐time guide was presented on a computer screen, which provided a visual indication of the onset and duration of the MI task through via moving dots on the screen. The results indicate that the corticospinal excitability changed differently, depending on the duration of MI. Additionally, with real‐time guides, the change in corticospinal excitability became clearer. Thus, corticospinal excitability changes due to the temporal specificities of MI, as well as with actual motor output. Moreover, if MI is actively performed without a guide, it is likely to show an unintended change in corticospinal excitability. It is suggested that when MI is performed with visual guide, the excitatory changes of the corticospinal tract might be different from the actual motor output. Therefore, when using MI for mental practices, it is possible to improve the effect of a guide for MI, such as a visual indicator for motor output. Additionally, when examining neural activities in MI, it may be necessary to consider the characteristics of motion performed by MI.

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Real-time changes in corticospinal excitability related to motor imagery of a force control task

Cited by 5 publications

References 26 publications

The Effect of Expertise on Kinesthetic Motor Imagery of Complex Actions

The Effect of Expertise on Kinesthetic Motor Imagery of Complex Actions

Effects of Sensorimotor Rhythm Modulation on the Human Flexor Carpi Radialis H-Reflex

Time course effect of corticospinal excitability for motor imagery

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