Lower gamma band in the classification of left and right elbow movement in real and imaginary tasks

Veslin, E. Y.; Dutra, Max Suell; Bevilácqua, Luiz; Raptopoulos, Luciano Santos Constantin; Andrade, Waltencir; Pereira, André; Fiorani, Mário; Soares, José Agnelo

doi:10.1007/s40430-019-1585-2

Cited by 3 publications

(6 citation statements)

References 38 publications

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“…No significant difference was detected between mean GBA values during the imaginary and actual movement (p = .242). The present study found increased mean GBA during imaginary and real motor movement of both hands in frontal, central, temporal, and parietal areas of the brain, similar to the study finding of Kiroi et al, 16 Veslin et al, 7 and Amo Usanos et al 15 The present study found an increase in GBA in the frontal, central, temporal, and parietal areas of the brain, and no significant change was found in the occipital area of the brain during imaginary movement. Whereas Kiroi et al 5 study found increased mainly in the central area of the brain.…”

Section: Discussionsupporting

confidence: 92%

“…The Department of Mechanical Engineering, Federal University of Rio de Janeiro, Brazil by Veslin et al 7 research study on 12 healthy people, done at the Robotics Laboratory and found that GBA does not differ between the real and imaginary movement of elbow joint over the frontocentral area of the brain. A research study was conducted in Spain by Amo Usanos et al, 15 and obtained EEG (Cz channel) recording from 12 healthy volunteer subjects.…”

Section: Discussionmentioning

confidence: 99%

“…6 Another study also reported similar observations in the gamma band during the preparation and execution of both actual and imaginary movements. 7 A recent study from Karolinska Institute shows that imagined movements can change our perception in the same way as real, executed movements do. 8 Many research studies found activation of motor areas (M1) during imaginary movements, but some studies found activation of only the contralateral hemisphere, 9,10,11 others found 1 Department of Physiology, SMS Medical College, Jaipur, Rajasthan, India.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Spectral Analysis of Gamma Band Activity During Actual and Imagined Movements as a Cognitive Tool

Kumawat,

Yadav,

Yadav

et al. 2023

Clin EEG Neurosci

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Background. Imagined motor movement is a cognitive process in which a subject imagines a movement without doing it, which activates similar brain regions as during actual motor movement. Brain gamma band activity (GBA) is linked to cognitive functions such as perception, attention, memory, awareness, synaptic plasticity, motor control, and Imagination. Motor imagery can be used in sports to improve performance, raising the possibility of using it as a rehabilitation method through brain plasticity through mirror neurons. Method. A comparative observational study was conducted on 56 healthy male subjects after obtaining clearance from the Ethics Committee. EEG recordings for GBA were taken for resting, real, and imaginary motor movements and compared. The power spectrum of gamma waves was analyzed using the Kruskal–Wallis test; a p-value <.05 was considered significant. Results. The brain gamma rhythm amplitude was statistically increased during both actual and imaginary motor movement compared to baseline (resting stage) in most of the regions of the brain except the occipital region. There was no significant difference in GBA between real and imaginary movements. Conclusions. Increased gamma rhythm amplitude during both actual and imaginary motor movement than baseline (resting stage) indicating raised brain cognitive activity during both types of movements. There was no potential difference between real and imaginary movements suggesting that the real movement can be replaced by the imaginary movement to enhance work performance through mirror therapy.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of Spectral Analysis of Gamma Band Activity During Actual and Imagined Movements as a Cognitive Tool

Kumawat,

Yadav,

Yadav

et al. 2023

Clin EEG Neurosci

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“…Works [24,26] likewise describe an increase, relative to basal activity, in the gamma band in both the imaginary movement and the actual movement. In addition, they do not find any difference in GBA between the actual movement and the imaginary movement.…”

Section: Discussionmentioning

confidence: 99%

Induced Gamma-Band Activity during Actual and Imaginary Movements: EEG Analysis

Usanos

Boquete

Santiago

et al. 2020

Sensors

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The purpose of this paper is to record and analyze induced gamma-band activity (GBA) (30–60 Hz) in cerebral motor areas during imaginary movement and to compare it quantitatively with activity recorded in the same areas during actual movement using a simplified electroencephalogram (EEG). Brain activity (basal activity, imaginary motor task and actual motor task) is obtained from 12 healthy volunteer subjects using an EEG (Cz channel). GBA is analyzed using the mean power spectral density (PSD) value. Event-related synchronization (ERS) is calculated from the PSD values of the basal GBA (GBAb), the GBA of the imaginary movement (GBAim) and the GBA of the actual movement (GBAac). The mean GBAim and GBAac values for the right and left hands are significantly higher than the GBAb value (p = 0.007). No significant difference is detected between mean GBA values during the imaginary and actual movement (p = 0.242). The mean ERS values for the imaginary movement (ERSimM (%) = 23.52) and for the actual movement (ERSacM = 27.47) do not present any significant difference (p = 0.117). We demonstrated that ERS could provide a useful way of indirectly checking the function of neuronal motor circuits activated by voluntary movement, both imaginary and actual. These results, as a proof of concept, could be applied to physiology studies, brain–computer interfaces, and diagnosis of cognitive or motor pathologies.

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“…The trial division allowed us to make different studies, as the development of classification tools based on EEG activity in different cognitive states [56,57] or to study the brain patterns behavior during the preparation trial with respect to the developed task, concerning to this work, only were considered EEG signals related to the task interval when the movement was executed.…”

Section: Experimental Paradigmmentioning

confidence: 99%

Development of a closed-loop BMI for elbow movement assistance based on kinematical decoding

Veslin

Dutra

Bevilácqua

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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A closed-loop brain-machine interface for elbow assistance is proposed in this work. The system decodes flexion and extension movements from noninvasive electroencephalographic signals through Kalman filter and uses them to activate a virtual device. A two-degree-of-freedom control scheme drives the model through a decoded path by generating a set of estimated inputs using differential flatness. These inputs are compensated by a feedback loop when decoding errors or external forces actuate the model. The results provide us an insight into the control architecture performance, which is dependent on the decoding precision. These decoding capabilities can be manipulated through a set of parameter configurations, enhancing the path tracking, or decreasing the decoding error according to their values.

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Lower gamma band in the classification of left and right elbow movement in real and imaginary tasks

Cited by 3 publications

References 38 publications

Comparison of Spectral Analysis of Gamma Band Activity During Actual and Imagined Movements as a Cognitive Tool

Comparison of Spectral Analysis of Gamma Band Activity During Actual and Imagined Movements as a Cognitive Tool

Induced Gamma-Band Activity during Actual and Imaginary Movements: EEG Analysis

Development of a closed-loop BMI for elbow movement assistance based on kinematical decoding

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