Anodal tDCS Over the Left Frontal Eye Field Improves Sustained Visual Search Performance

Gan, Tian; Huang, Yihong; Xin, Hao; Hu, Lina; Zheng, Yan; Yang, Zhen

doi:10.1177/03010066221086446

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…Previous studies have investigated the effects of tDCS on jump performance [20,[22][23][24]31]. Our results are consistent with those of Lattari et al [20], Grosprêtre et al [22], and Chen et al [23].…”

Section: Effect Of Tdcs On Jump Heightsupporting

confidence: 92%

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Effects of Bilateral Extracephalic Transcranial Direct Current Stimulation on Lower Limb Kinetics in Countermovement Jumps

Zhu

Wang

Tang

et al. 2023

IJERPH

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Objective: Transcranial direct current stimulation (tDCS) is an effective method for improving sports/exercise performance in humans. However, studies examining the effects of tDCS on jumping performance have reported inconsistent findings, and there is a paucity of studies investigating the effects of tDCS on lower limb energy and kinetics in countermovement jumps (CMJs). Thus, we investigated the effects of tDCS on countermovement jump (CMJ) performance and analysed kinetic variations in the ankle, knee, and hip joints. Methods: In total, 15 healthy young participants randomly received anodal or sham bilateral stimulation of the primary motor cortex (M1). The bilateral tDCS (Bi-tDCS) montage used an intensity of 2 mA for a 20 min monophasic continuous current. Jump height, energy, and lower limb kinetic data in CMJs were collected at pre-stimulation (Pre), post-0 min (Post-0), and post-30 min (Post-30) using a motion capture system and two 3D force plates. Jump height, lower extremity energy, and kinetic variables in CMJs were analysed with two-way repeated-measures ANOVA. Results: (1) Compared to the baseline and sham conditions, the jump height increased except that at Post-30 relative to the sham condition, and the total net energy of lower limbs increased at Post-30 relative to the baseline. (2) Compared to the baseline, the ankle positive energy and net energy decreased in the sham condition; Compared to the baseline and values at Post-0, the maximum ankle torque at Post-30 decreased in both stimulation conditions. (3) The maximum knee power increased compared to the baseline and sham conditions. (4) Regardless of time points, the maximum hip torque in the tDCS condition was higher than it was in the sham condition. Conclusion: Bi-tDCS is an effective method for improving jump height by modulating ankle and knee net energy. The net energy improvement of the lower extremities may be due to variation in the kinetic chain resulting from tDCS-enhanced knee exploration force and maximum hip strength in CMJs. The effects of Bi-tDCS gradually decrease.

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Section: Effect Of Tdcs On Jump Heightsupporting

confidence: 92%

“…This can be explained by a decrease in the lasting effects of tDCS. Gan et al [31] investigated the effects of tDCS on sustained visual search performance. Compared to the sham condition, anodal tDCS induced significantly higher performance in only 10 min.…”

Section: Effect Of Tdcs On Jump Heightmentioning

confidence: 99%

Effects of Bilateral Extracephalic Transcranial Direct Current Stimulation on Lower Limb Kinetics in Countermovement Jumps

Zhu

Wang

Tang

et al. 2023

IJERPH

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The mitigation of the executive vigilance decrement via HD-tDCS over the right posterior parietal cortex and its association with neural oscillations

et al. 2023

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Vigilance—maintaining a prolonged state of preparation to detect and respond to specific yet unpredictable environmental changes—usually decreases across prolonged tasks, causing potentially severe real-life consequences, which could be mitigated through transcranial direct current stimulation (tDCS). The present study aimed at replicating previous mitigatory effects observed with anodal high-definition tDCS (HD-tDCS) over the right posterior parietal cortex (rPPC) while extending the analyses on electrophysiological measures associated with vigilance. In sum, 60 participants completed the ANTI-Vea task while receiving anodal (1.5 mA, n = 30) or sham (0 mA, n = 30) HD-tDCS over the rPPC for ~ 28 min. EEG recordings were completed before and after stimulation. Anodal HD-tDCS specifically mitigated executive vigilance (EV) and reduced the alpha power increment across time-on-task while increasing the gamma power increment. To further account for the observed behavioral and physiological outcomes, a new index of Alphaparietal/Gammafrontal is proposed. Interestingly, the increment of this Alphaparietal/Gammafrontal Index with time-on-task is associated with a steeper EV decrement in the sham group, which was mitigated by anodal HD-tDCS. We highlight the relevance of replicating mitigatory effects of tDCS and the need to integrate conventional and novel physiological measures to account for how anodal HD-tDCS can be used to modulate cognitive performance.

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Does Augmenting Virtual Reality-Based Cognitive Training with Longitudinal, Anodal Transcranial Direct Current Stimulation Improve Visual Search Performance? A Neurobehavioral Evaluation

Rao,

Bhat,

Negi

et al. 2024

Proceedings of the Human Factors and Ergonomics Society Annual

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This study investigated the effectiveness of combining Virtual Reality (VR)-based cognitive training with transcranial direct current stimulation (tDCS) in enhancing visual processing. Eighty participants undertook a 20-day, single-blind, placebo-controlled study across pre-intervention (Day 1), intervention (Day 2–Day 9), and post-intervention phases (Day 10 and Day 20). Participants were randomly assigned to four groups: tDCS + VR, VR + placebo tDCS, tDCS + placebo VR, and placebo tDCS + placebo VR. After undertaking three visual processing tasks on Day 1, participants underwent intervention from Day 2 to Day 9 and followed up with post-intervention testing on Days 10 and 20. Results revealed that the tDCS + VR condition showed significantly improved sensitivity in visual search on Day 10. EEG results indicated that anodal tDCS coupled with VR training enhanced cortical activation in the tDCS + VR condition. This study underscores the potential of cognitive training programs integrating VR and tDCS.

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Anodal tDCS Over the Left Frontal Eye Field Improves Sustained Visual Search Performance

Cited by 3 publications

References 40 publications

Effects of Bilateral Extracephalic Transcranial Direct Current Stimulation on Lower Limb Kinetics in Countermovement Jumps

Effects of Bilateral Extracephalic Transcranial Direct Current Stimulation on Lower Limb Kinetics in Countermovement Jumps

The mitigation of the executive vigilance decrement via HD-tDCS over the right posterior parietal cortex and its association with neural oscillations

Does Augmenting Virtual Reality-Based Cognitive Training with Longitudinal, Anodal Transcranial Direct Current Stimulation Improve Visual Search Performance? A Neurobehavioral Evaluation

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