Academic Journal
The effects of visuomotor training and tDCS stimulation on visuomotor integration and visual processing: an electrophysiological approach.
| Τίτλος: | The effects of visuomotor training and tDCS stimulation on visuomotor integration and visual processing: an electrophysiological approach. |
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| Συγγραφείς: | Bree JV; University of North Dakota, Department of Psychology, United States., Poltavski D; University of North Dakota, Department of Psychology, United States. Electronic address: dmitri.poltavski@und.edu. |
| Πηγή: | Neuroscience [Neuroscience] 2026 Sep 28; Vol. 612, pp. 175-191. Date of Electronic Publication: 2026 Jul 25. |
| Τύπος έκδοσης: | Journal Article; Randomized Controlled Trial |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Elsevier Science Country of Publication: United States NLM ID: 7605074 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-7544 (Electronic) Linking ISSN: 03064522 NLM ISO Abbreviation: Neuroscience Subsets: MEDLINE |
| Imprint Name(s): | Publication: [New York?] : Elsevier Science Original Publication: Oxford, Elmsford, N. Y., Pergamon Press |
| Ιατρικοί όροι (MeSH): | Transcranial Direct Current Stimulation*/methods , Visual Perception*/physiology , Motor Cortex*/physiology , Psychomotor Performance*/physiology , Evoked Potentials, Visual*/physiology , Learning*/physiology, Humans ; Female ; Male ; Adult ; Young Adult ; Electroencephalography |
| Περίληψη: | Background: Visuomotor integration coordinates visual and motor cortical activity to produce goal-directed responses and can be indexed by Rolandic Mu-rhythm suppression and visual evoked potential (VEP) P100 parameters. Perceptual-motor training improves visuomotor performance, and transcranial direct current stimulation (tDCS) over primary motor cortex (M1) has been reported to enhance motor learning when paired with training. This study examined whether anodal M1 tDCS augments the effects of Senaptec visuomotor training in healthy adults. Methods: Sixty participants were randomized to active anodal tDCS (five 10-minute sessions, 1 mA; n = 31) or sham (n = 29) over M1 immediately before each Senaptec training session; 53 completed all sessions and post-testing. Outcomes were Mu-suppression ratios, VEP P100 latency and amplitude, and Senaptec measures of visual sensitivity and visuomotor control. Results: Active tDCS produced no augmentation of any outcome, with no significant group × time interaction for any measure, consistent across composite and task-level analyses. Training alone produced no change in Mu suppression or visuomotor control. By contrast, both groups showed significant training-related gains in visual sensitivity, including near-far quickness and stereopsis, accompanied by shorter P100 latencies and larger amplitudes, indicating more efficient early visual processing. Conclusions: A clear dissociation emerged: training produced robust improvements in early visual processing, whereas neither tDCS nor training altered sensorimotor (Mu) or visuomotor-control measures. The tDCS results should be interpreted cautiously given the modest dose and limited power to detect small effects, rather than as evidence of inefficacy. Tablet-based perceptual training enhanced visual processing independent of neuromodulation. (Copyright © 2026 International Brain Research Organization (IBRO). Published by Elsevier Inc. All rights reserved.) |
| Contributed Indexing: | Keywords: Mu rhythm; Neuroplasticity; Transcranial direct current stimulation; Visual evoked potentials; Visuomotor integration visuomotor training |
| Entry Date(s): | Date Created: 20260725 Date Completed: 20260820 Latest Revision: 20260909 |
| Update Code: | 20260909 |
| DOI: | 10.1016/j.neuroscience.2026.07.048 |
| PMID: | 42501781 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1873-7544 |
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| DOI: | 10.1016/j.neuroscience.2026.07.048 |