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Shen B, Xiao S, Yu C, Zhang C, Zhan J, Liu Y, Fu W. Cerebral hemodynamics underlying ankle force sense modulated by high-definition transcranial direct current stimulation. Cereb Cortex 2024; 34:bhae226. [PMID: 38850217 DOI: 10.1093/cercor/bhae226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/07/2024] [Accepted: 05/14/2024] [Indexed: 06/10/2024] Open
Abstract
This study aimed to investigate the effects of high-definition transcranial direct current stimulation on ankle force sense and underlying cerebral hemodynamics. Sixteen healthy adults (8 males and 8 females) were recruited in the study. Each participant received either real or sham high-definition transcranial direct current stimulation interventions in a randomly assigned order on 2 visits. An isokinetic dynamometer was used to assess the force sense of the dominant ankle; while the functional near-infrared spectroscopy was employed to monitor the hemodynamics of the sensorimotor cortex. Two-way analyses of variance with repeated measures and Pearson correlation analyses were performed. The results showed that the absolute error and root mean square error of ankle force sense dropped more after real stimulation than after sham stimulation (dropped by 23.4% vs. 14.9% for absolute error, and 20.0% vs. 10.2% for root mean square error). The supplementary motor area activation significantly increased after real high-definition transcranial direct current stimulation. The decrease in interhemispheric functional connectivity within the Brodmann's areas 6 was significantly correlated with ankle force sense improvement after real high-definition transcranial direct current stimulation. In conclusion, high-definition transcranial direct current stimulation can be used as a potential intervention for improving ankle force sense. Changes in cerebral hemodynamics could be one of the explanations for the energetic effect of high-definition transcranial direct current stimulation.
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Affiliation(s)
- Bin Shen
- School of Exercise and Health, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
| | - Songlin Xiao
- School of Exercise and Health, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
| | - Changxiao Yu
- School of Exercise and Health, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
| | - Chuyi Zhang
- School of Exercise and Health, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
| | - Jianglong Zhan
- School of Exercise and Health, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
| | - Ying Liu
- School of Psychology, Shanghai University of Sport, 399 Changhai Road, Yangpu District, Shanghai 200438, China
| | - Weijie Fu
- School of Exercise and Health, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, 200 Hengren Road, Yangpu District, Shanghai 200438, China
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Lee H, Lee JH, Lee TL, Ko DK, Kang N. Dual-hemisphere anodal transcranial direct current stimulation improves bilateral motor synergies. Front Psychol 2023; 14:1211034. [PMID: 37546450 PMCID: PMC10400310 DOI: 10.3389/fpsyg.2023.1211034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/15/2023] [Indexed: 08/08/2023] Open
Abstract
Transcranial direct current stimulation (tDCS) is one of the non-invasive brain stimulation techniques that can improve motor functions. As bimanual motor actions require high motor cortical activations between hemispheres, applying bilateral anodal stimulation on left and right sides of primary motor cortex (M1) can improve for improvements in bimanual motor tasks. This study investigated which bilateral tDCS protocol effectively improves bimanual hand-grip force control capabilities in healthy young adults. We used three different bilateral tDCS protocols: (a) dual-anodal stimulation on the M1 of bilateral hemispheres (Bi-AA), (b) anodal-cathodal stimulation on the M1 of dominant and nondominant hemispheres (Bi-AC), and (c) sham stimulation (Sham). The results indicated that applying the Bi-AA significantly improved bilateral motor synergies estimated by uncontrolled manifold analysis relative to Sham. However, these differences were not observed in the comparison between Bi-AA and Bi-AC as well as between Bi-AC and Sham. These findings suggest that facilitating motor cortical activations between both hemispheres may be an additional option for advancing interlimb motor coordination patterns.
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Affiliation(s)
- Hanall Lee
- Department of Human Movement Science, Incheon National University, Incheon, Republic of Korea
- Neuromechanical Rehabilitation Research Laboratory, Incheon National University, Incheon, Republic of Korea
| | - Joon Ho Lee
- Department of Human Movement Science, Incheon National University, Incheon, Republic of Korea
- Neuromechanical Rehabilitation Research Laboratory, Incheon National University, Incheon, Republic of Korea
| | - Tae Lee Lee
- Department of Human Movement Science, Incheon National University, Incheon, Republic of Korea
- Neuromechanical Rehabilitation Research Laboratory, Incheon National University, Incheon, Republic of Korea
| | - Do-Kyung Ko
- Department of Human Movement Science, Incheon National University, Incheon, Republic of Korea
- Neuromechanical Rehabilitation Research Laboratory, Incheon National University, Incheon, Republic of Korea
| | - Nyeonju Kang
- Department of Human Movement Science, Incheon National University, Incheon, Republic of Korea
- Neuromechanical Rehabilitation Research Laboratory, Incheon National University, Incheon, Republic of Korea
- Division of Sport Science, Health Promotion Center, Sport Science Institute, Incheon National University, Incheon, Republic of Korea
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Transcranial direct current stimulation influences repetitive bimanual force control and interlimb force coordination. Exp Brain Res 2023; 241:313-323. [PMID: 36512062 DOI: 10.1007/s00221-022-06526-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
This study aimed to investigate the potential effect of bilateral transcranial direct current stimulation (tDCS) on repetitive bimanual force control and force coordination in healthy young adults. In this sham-controlled crossover study, 18 right-handed young adults were enrolled. Repetitive bimanual handgrip force control trials were performed by the participants at 40% of maximum voluntary contraction until task failure. We randomly provided bilateral active and sham tDCS to the primary motor cortex (M1) of each participant before conducting the repetitive bimanual force control task. We quantified the number of successful trials to assess the ability to maintain bimanual force control across multiple trials. Moreover, we estimated bimanual force control and force coordination by quantifying force accuracy, variability, regularity, and correlation coefficient in maximal and adjusted successful trials. Force asymmetry was calculated to examine potential changes in motor dependency on each hand during the task. Bilateral tDCS significantly increased the number of successful trials compared with sham tDCS. The adjusted successful trial revealed that participants who received bilateral tDCS maintained better bimanual force control and coordination, as indicated by decreased force variability and regularity as well as more negative correlation coefficient values in comparison with sham condition. Moreover, participants who received bilateral tDCS produced more force from the dominant hand than from the nondominant hand in both maximal and adjusted successful trials. These findings suggest that bilateral tDCS on M1 successfully maintains bimanual force control with better force coordination by modulating motor dependency.
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De Laet C, Herman B, Riga A, Bihin B, Regnier M, Leeuwerck M, Raymackers JM, Vandermeeren Y. Bimanual motor skill learning after stroke: Combining robotics and anodal tDCS over the undamaged hemisphere: An exploratory study. Front Neurol 2022; 13:882225. [PMID: 36061986 PMCID: PMC9433746 DOI: 10.3389/fneur.2022.882225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundSince a stroke can impair bimanual activities, enhancing bimanual cooperation through motor skill learning may improve neurorehabilitation. Therefore, robotics and neuromodulation with transcranial direct current stimulation (tDCS) are promising approaches. To date, tDCS has failed to enhance bimanual motor control after stroke possibly because it was not integrating the hypothesis that the undamaged hemisphere becomes the major poststroke hub for bimanual control.ObjectiveWe tested the following hypotheses: (I) In patients with chronic hemiparetic stroke training on a robotic device, anodal tDCS applied over the primary motor cortex of the undamaged hemisphere enhances bimanual motor skill learning compared to sham tDCS. (II) The severity of impairment correlates with the effect of tDCS on bimanual motor skill learning. (III) Bimanual motor skill learning is less efficient in patients than in healthy individuals (HI).MethodsA total of 17 patients with chronic hemiparetic stroke and 7 healthy individuals learned a complex bimanual cooperation skill on the REAplan® neurorehabilitation robot. The bimanual speed/accuracy trade-off (biSAT), bimanual coordination (biCo), and bimanual force (biFOP) scores were computed for each performance. In patients, real/sham tDCS was applied in a crossover, randomized, double-blind approach.ResultsCompared to sham, real tDCS did not enhance bimanual motor skill learning, retention, or generalization in patients, and no correlation with impairment was noted. The healthy individuals performed better than patients on bimanual motor skill learning, but generalization was similar in both groups.ConclusionA short motor skill learning session with a robotic device resulted in the retention and generalization of a complex skill involving bimanual cooperation. The tDCS strategy that would best enhance bimanual motor skill learning after stroke remains unknown.Clinical trial registrationhttps://clinicaltrials.gov/ct2/show/NCT02308852, identifier: NCT02308852.
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Affiliation(s)
- Chloë De Laet
- Stroke Unit/NeuroModulation Unit (NeMU), Department of Neurology, CHU UCL Namur (Mont-Godinne), UCLouvain, Yvoir, Belgium
| | - Benoît Herman
- Louvain Bionics, UCLouvain, Louvain-la-Neuve, Belgium
- Materials and Civil Engineering (iMMC), Institute of Mechanics, UCLouvain, Louvain-la-Neuve, Belgium
| | - Audrey Riga
- Stroke Unit/NeuroModulation Unit (NeMU), Department of Neurology, CHU UCL Namur (Mont-Godinne), UCLouvain, Yvoir, Belgium
- Louvain Bionics, UCLouvain, Louvain-la-Neuve, Belgium
- Clinical Division (NEUR), Institute of NeuroScience (IoNS), UCLouvain, Brussels, Belgium
| | - Benoît Bihin
- Scientific Support Unit, CHU UCL Namur (Mont-Godinne), UCLouvain, Yvoir, Belgium
| | - Maxime Regnier
- Scientific Support Unit, CHU UCL Namur (Mont-Godinne), UCLouvain, Yvoir, Belgium
| | - Maria Leeuwerck
- Department of Physical Medicine and Rehabilitation, CHU UCL Namur (Mont-Godinne), UCLouvain, Yvoir, Belgium
| | - Jean-Marc Raymackers
- Department of Neurology and Neurosurgery, Clinique Saint-Pierre, Ottignies-Louvain-la-Neuve, Belgium
| | - Yves Vandermeeren
- Stroke Unit/NeuroModulation Unit (NeMU), Department of Neurology, CHU UCL Namur (Mont-Godinne), UCLouvain, Yvoir, Belgium
- Louvain Bionics, UCLouvain, Louvain-la-Neuve, Belgium
- Clinical Division (NEUR), Institute of NeuroScience (IoNS), UCLouvain, Brussels, Belgium
- *Correspondence: Yves Vandermeeren
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Noninvasive Human-Computer Interface Methods and Applications for Robotic Control: Past, Current, and Future. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2022; 2022:1635672. [PMID: 35720904 PMCID: PMC9200502 DOI: 10.1155/2022/1635672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/24/2022] [Accepted: 05/06/2022] [Indexed: 11/27/2022]
Abstract
The purpose of this study is to explore the noninvasive human-computer interaction methods that have been widely used in various fields, especially in the field of robot control. To have a deep understanding of the development of the methods, this paper employs “Mapping Knowledge Domains” (MKDs) to find research hotspots in the area to show the future potential development. Through the literature review, this paper found that there was a paradigm shift in the research of noninvasive BCI technologies for robotic control, which has occurred from early 2010 since the rapid development of machine learning, deep learning, and sensory technologies. This study further provides a trend analysis that the combination of data-driven methods with optimized algorithms and human-sensory-driven methods will be the key areas for the future noninvasive method development in robotic control. Based on the above findings, the paper provides a potential developing way of noninvasive HCI methods for related areas including health care, robotic system, and media.
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