Unskilled shooters improve accuracy with tDCS

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Unskilled shooters improve both accuracy and grouping shot having as reference skilled shooters cortical area: An EEG and tDCS study.

Abstract
Transcranial direct current stimulation (tDCS) has been used as a non-invasive method for enhanced motor and cognitive abilities. However, no previous study has investigated if the tDCS application in unskilled shooters on cortical sites, selected based on the cortical activity of skilled shooters, improves the accuracy and shot grouping. Sixty participants were selected, which included 10 skilled shooters and 50 unskilled shooters. After we identified the right dorsolateral prefrontal cortex (DLPFC) as the area with the highest activity in skilled shooters, we applied anodal tDCS over the right DLPFC in the unskilled shooters under two conditions: sham-tDCS (placebo) and real-tDCS (anodal tDCS). We also analyzed electroencephalography. Our results indicated that anodal tDCS application enhanced the shot accuracy (p=0.001). Furthermore, the beta power in the EEG recording was higher in the left DLPFC, left and right parietal cortex (p=0,001) after applying anodal tDCS, while the low-gamma power was higher in the right DLPFC in sham-tDCS (p=0.001) and right parietal cortex after anodal-tDCS (p=0.001). Our findings indicate that anodal tDCS can improve accuracy and shot grouping when applied over the unskilled shooters’ right DLPFC. Furthermore, beta and low-gamma bands are influenced by anodal tDCS over the right DLPFC, which may be predictive of skill improvement.

PMID: 32598941 [PubMed – as supplied by publisher]

Physiol Behav. 2020 Jun 26;:113036

Authors: Rocha K, Marinho V, Magalhães F, Carvalho V, Fernandes T, Ayres M, Crespo E, Velasques B, Ribeiro P, Cagy M, Bastos VH, Gupta DS, Teixeira S

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