scholarly journals Focal Hemodynamic Responses in the Stimulated Hemisphere During High-Definition Transcranial Direct Current Stimulation

2017 ◽  
Vol 21 (4) ◽  
pp. 348-354 ◽  
Author(s):  
Makii Muthalib ◽  
Pierre Besson ◽  
John Rothwell ◽  
Stéphane Perrey
Keyword(s):  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
High Definition ◽  
Hemodynamic Responses ◽  
Direct Current Stimulation

scholarly journals [P4-023]: HIGH-DEFINITION TRANSCRANIAL DIRECT CURRENT STIMULATION MODULATES BOLD SIGNAL DURING SPATIAL NAVIGATION IN OLDER CONTROLS AND PATIENTS WITH MCI

2017 ◽  
Vol 13 (7S_Part_26) ◽  
pp. P1263-P1263
Author(s):  
Benjamin M. Hampstead ◽  
Alina Lesnovskaya ◽  
Sarah Garcia ◽  
Sean Ma ◽  
Arijit K. Bhaumik ◽  
...  
Keyword(s):  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Spatial Navigation ◽  
Bold Signal ◽  
High Definition ◽  
Direct Current Stimulation

scholarly journals Effects of High-Definition and Conventional Transcranial Direct-Current Stimulation on Motor Learning in Children

2018 ◽  
Vol 12 ◽  
Author(s):  
Lauran Cole ◽  
Adrianna Giuffre ◽  
Patrick Ciechanski ◽  
Helen L. Carlson ◽  
Ephrem Zewdie ◽  
...  
Keyword(s):  
Motor Learning ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
High Definition ◽  
Direct Current Stimulation

scholarly journals Comparison of repeated transcranial stimulation and transcranial direct-current stimulation on primary motor cortex excitability and inhibition: A pilot study

2018 ◽  
pp. 59-67 ◽  
Author(s):  
Vincent Cabibel ◽  
Makii Muthalib ◽  
Jérôme Froger ◽  
Stéphane Perrey
Keyword(s):  
Pilot Study ◽  
Motor Cortex ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Primary Motor Cortex ◽  
Motor Evoked Potentials ◽  
High Definition ◽  
Direct Current Stimulation ◽  
Motor Cortex Excitability ◽  
The Right

Repeated transcranial magnetic stimulation (rTMS) is a well-known clinical neuromodulation technique, but transcranial direct-current stimulation (tDCS) is rapidly growing interest for neurorehabilitation applications. Both methods (contralesional hemisphere inhibitory low-frequency: LF-rTMS or lesional hemisphere excitatory anodal: a-tDCS) have been employed to modify the interhemispheric imbalance following stroke. The aim of this pilot study was to compare aHD-tDCS (anodal high-definition tDCS) of the left M1 (2 mA, 20 min) and LF-rTMS of the right M1 (1 Hz, 20 min) to enhance excitability and reduce inhibition of the left primary motor cortex (M1) in five healthy subjects. Single-pulse TMS was used to elicit resting and active (low level muscle contraction, 5% of maximal electromyographic signal) motor-evoked potentials (MEPs) and cortical silent periods (CSPs) from the right and left extensor carpi radialis muscles at Baseline, immediately and 20 min (Post-Stim-20) after the end of each stimulation protocol. LF-rTMS or aHD-tDCS significantly increased right M1 resting and active MEP amplitude at Post-Stim-20 without any CSP modulation and with no difference between methods. In conclusion, this pilot study reported unexpected M1 excitability changes, which most likely stems from variability, which is a major concern in the field to consider.

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