Study: NCT03825627

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Transcranial Direct Current Stimulation
Description: Conductive saline-soaked rubber electrodes super-imposed on sponge plates will be placed on the scalp at F3 (active electrode, 4.4×4.4cm) and on the contralateral supraorbital area (reference electrode, 5.1×10.2cm).~Stimulation will be applied using a battery-driven constant-current regulator (Oasis Pro, Edmonton, Alberta, Canada). For each stimulation, the direct current is initially increased in a ramp-like fashion over 10 s until reaching 2 milliampere (mA) and will be similarly decreased at the end of stimulation.~In the active tDCS condition, stimulation will be maintained for 20 min; in the sham condition, it will be turned off after 15 s of stimulation, with a ramp-up/down of 10 s (i.e., 35 s total).

Intervention type: DEVICE
Group type: SHAM_COMPARATOR
Intervention: Transcranial Direct Current Stimulation
Description: Conductive saline-soaked rubber electrodes super-imposed on sponge plates will be placed on the scalp at F3 (active electrode, 4.4×4.4cm) and on the contralateral supraorbital area (reference electrode, 5.1×10.2cm).~Stimulation will be applied using a battery-driven constant-current regulator (Oasis Pro, Edmonton, Alberta, Canada). For each stimulation, the direct current is initially increased in a ramp-like fashion over 10 s until reaching 2 milliampere (mA) and will be similarly decreased at the end of stimulation.~In the active tDCS condition, stimulation will be maintained for 20 min; in the sham condition, it will be turned off after 15 s of stimulation, with a ramp-up/down of 10 s (i.e., 35 s total).

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Transcranial Direct Current Stimulation
Description: Conductive saline-soaked rubber electrodes super-imposed on sponge plates will be placed on the scalp at F3 (active electrode, 4.4×4.4cm) and on the contralateral supraorbital area (reference electrode, 5.1×10.2cm).~Stimulation will be applied using a battery-driven constant-current regulator (Oasis Pro, Edmonton, Alberta, Canada). For each stimulation, the direct current is initially increased in a ramp-like fashion over 10 s until reaching 2 milliampere (mA) and will be similarly decreased at the end of stimulation.~In the active tDCS condition, stimulation will be maintained for 20 min; in the sham condition, it will be turned off after 15 s of stimulation, with a ramp-up/down of 10 s (i.e., 35 s total).

Intervention type: DEVICE
Group type: SHAM_COMPARATOR
Intervention: Transcranial Direct Current Stimulation
Description: Conductive saline-soaked rubber electrodes super-imposed on sponge plates will be placed on the scalp at F3 (active electrode, 4.4×4.4cm) and on the contralateral supraorbital area (reference electrode, 5.1×10.2cm).~Stimulation will be applied using a battery-driven constant-current regulator (Oasis Pro, Edmonton, Alberta, Canada). For each stimulation, the direct current is initially increased in a ramp-like fashion over 10 s until reaching 2 milliampere (mA) and will be similarly decreased at the end of stimulation.~In the active tDCS condition, stimulation will be maintained for 20 min; in the sham condition, it will be turned off after 15 s of stimulation, with a ramp-up/down of 10 s (i.e., 35 s total).