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Noninvasive brain stimulations (NIBS) will be used in healthy volunteers and in chronic stroke patients to improve bimanual activities and motor learning.
Functional magnetic resonance imaging will be used to evaluate the mechanisms underlying bimanual activities and motor learning in healthy volunteers and in chronic stroke patients.
A neuro-rehabilitation robot (REA2PLAN, AXINESIS, Louvain-la-Neuve, Belgium) will be used for motor learning.
tDCS will be used in a sham-controlled, double-blind, randomized, cross-over control trial in chronic stroke patients with motor deficits. After informed consent and recruitment, patients will be randomly (computer method) allocated to real or sham tDCS, that will be applied during performance of bimanual activities and/or motor learning. A few minutes/hours/days/weeks after completing one trial's arm, the patients will enter the other trial's arm (double-blind cross-over design).
Baseline and follow-up outcomes about bimanual and unimanual motor tasks will be collected.
For a subset of subjects, motor learning and data acquisition will be performed with a neuro-rehabilitation robot (REA2PLAN, AXINESIS, Louvain-la-Neuve, Belgium) .
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| real tDCS | Active Comparator | Patients will receive non-invasive and painless brain stimulation over the brain areas involved in cognitive aptitudes. tDCS will be applied during 20 minutes while patients will perform motor bimanual tasks |
|
| Sham tDCS | Placebo Comparator | this will be exactly as for "real tDCS" unless that the tDCS will be rapidly turned off, unbeknown from patients-therapist-examinator (double-blind trial) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| tDCS | Device |
|
| Measure | Description | Time Frame |
|---|---|---|
| bimanual coordination | The effect of intervention on bimanual motor coordination will be quantified before, during and after executive tasks. | up to 2 hours after intervention. Recall test at 1 week and up to,2,3,4 weeks after the intervention |
| Measure | Description | Time Frame |
|---|---|---|
| standard unimanual evaluation | Performance on motor skill learning tasks and on different commonly used tasks (Purdue Pegboard, hand dynamometer, pinch dynamometer, 9-HPT, motor skill learning with a videogame, ...) will be measured to explore the impact of tDCS on these parameters in chronic stroke patients. | immediately, 30, 60 min; and up to 2 hours after intervention. Recall test at 1 week and up to,2,3,4 weeks after the intervention) |
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Inclusion Criteria:
• stroke with at least slight deficit
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital CHU Dinant Godinne UcL Namur | Yvoir | 5530 | Belgium |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36061986 | Derived | 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 Aug 18;13:882225. doi: 10.3389/fneur.2022.882225. eCollection 2022. | |
| 33175411 | Derived |
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| ID | Term |
|---|---|
| D020521 | Stroke |
| ID | Term |
|---|---|
| D002561 | Cerebrovascular Disorders |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D065908 | Transcranial Direct Current Stimulation |
| ID | Term |
|---|---|
| D004599 | Electric Stimulation Therapy |
| D013812 | Therapeutics |
| D003295 | Convulsive Therapy |
| D013000 | Psychiatric Somatic Therapies |
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tDCS real versus sham tDCS (this is what this is)
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| Elsner B, Kugler J, Pohl M, Mehrholz J. Transcranial direct current stimulation (tDCS) for improving activities of daily living, and physical and cognitive functioning, in people after stroke. Cochrane Database Syst Rev. 2020 Nov 11;11(11):CD009645. doi: 10.1002/14651858.CD009645.pub4. |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D004191 | Behavioral Disciplines and Activities |
| D004597 | Electroshock |
| D011580 | Psychological Techniques |