The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task

Abstract There exist numerous factors that contribute to the amplification of errors and complexity in motor processes, among which variability and noise are particularly noteworthy. Transcranial random noise stimulation (tRNS) has been proposed as a potential means of enhancing motor performance by...

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Main Authors: Fatemeh Salehi, Mohammadreza Doustan, Esmaeel Saemi
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-88396-4
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author Fatemeh Salehi
Mohammadreza Doustan
Esmaeel Saemi
author_facet Fatemeh Salehi
Mohammadreza Doustan
Esmaeel Saemi
author_sort Fatemeh Salehi
collection DOAJ
description Abstract There exist numerous factors that contribute to the amplification of errors and complexity in motor processes, among which variability and noise are particularly noteworthy. Transcranial random noise stimulation (tRNS) has been proposed as a potential means of enhancing motor performance by modulating excitability in the motor cortex. This study aimed to examine the role of the concomitant administration of tRNS with training in enhancing the performance measures of movement time, noise, covariation, and tolerance in the acquisition of a perceptual-motor task. This study enlisted a cohort of 30 healthy male adults (mean age: 22.62 ± 3.83 years) who were randomly assigned to three distinct groups. The participants executed the specified motor task during three sequential phases, namely, the pre-test, intervention, and post-test phases. Statistical analyses showed that training with tRNS has a significant effect on noise cost, co-variation, and movement tolerance (p ≤ 0.05). In addition, tRNS improved the function of the sensorimotor wave (p ≤ 0.05). Moreover, the results indicate that tRNS elicited a significant reduction in both spatial error and movement execution time, (p ≤ 0.05). The study’s findings indicate that a mere three training sessions leveraging tRNS may suffice in diminishing the spatial error; nevertheless, a higher number of training sessions is required to alleviate the temporal error.
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spelling doaj-art-d0854c9f17f3411b85d36ceb3c2a81d22025-02-09T12:30:28ZengNature PortfolioScientific Reports2045-23222025-02-0115111510.1038/s41598-025-88396-4The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor taskFatemeh Salehi0Mohammadreza Doustan1Esmaeel Saemi2Department of Motor Behavior and Sport Psychology, Faculty of Sport Sciences, Shahid Chamran University of AhvazDepartment of Motor Behavior and Sport Psychology, Faculty of Sport Sciences, Shahid Chamran University of AhvazDepartment of Motor Behavior and Sport Psychology, Faculty of Sport Sciences, Shahid Chamran University of AhvazAbstract There exist numerous factors that contribute to the amplification of errors and complexity in motor processes, among which variability and noise are particularly noteworthy. Transcranial random noise stimulation (tRNS) has been proposed as a potential means of enhancing motor performance by modulating excitability in the motor cortex. This study aimed to examine the role of the concomitant administration of tRNS with training in enhancing the performance measures of movement time, noise, covariation, and tolerance in the acquisition of a perceptual-motor task. This study enlisted a cohort of 30 healthy male adults (mean age: 22.62 ± 3.83 years) who were randomly assigned to three distinct groups. The participants executed the specified motor task during three sequential phases, namely, the pre-test, intervention, and post-test phases. Statistical analyses showed that training with tRNS has a significant effect on noise cost, co-variation, and movement tolerance (p ≤ 0.05). In addition, tRNS improved the function of the sensorimotor wave (p ≤ 0.05). Moreover, the results indicate that tRNS elicited a significant reduction in both spatial error and movement execution time, (p ≤ 0.05). The study’s findings indicate that a mere three training sessions leveraging tRNS may suffice in diminishing the spatial error; nevertheless, a higher number of training sessions is required to alleviate the temporal error.https://doi.org/10.1038/s41598-025-88396-4Brain stimulationVariabilityMotor redundancyNoiseStochastic resonancePerception
spellingShingle Fatemeh Salehi
Mohammadreza Doustan
Esmaeel Saemi
The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task
Scientific Reports
Brain stimulation
Variability
Motor redundancy
Noise
Stochastic resonance
Perception
title The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task
title_full The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task
title_fullStr The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task
title_full_unstemmed The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task
title_short The effect of transcranial random noise stimulation on the movement time and components of noise, co-variation, and tolerance in a perceptual-motor task
title_sort effect of transcranial random noise stimulation on the movement time and components of noise co variation and tolerance in a perceptual motor task
topic Brain stimulation
Variability
Motor redundancy
Noise
Stochastic resonance
Perception
url https://doi.org/10.1038/s41598-025-88396-4
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