Effect of tACS on the Recovery of Motor Control of the Upper Limb and Cerebral Connectivity in Chronic Stroke Patients

"Transcranial alternating current stimulation in the head above the motor cortex area of one side of the brain, according to the hemiparesis side.~Electrodes with 3.14 cm2 of stimulation area will be used, therefore, the initial current intensity will be 0.21 mA, with a current density of 0.07 mA / cm2. The current intensity will be adjusted to the tactile sensory threshold and phosphenes of each patient, with in order to reduce such sensory effects, but considering that the decrease in current will not be greater than 10% of the initial intensity, in order to obtain a comparable configuration between subjects.~The frequency stimulation will be 70 Hz"

Training of the upper limb with specific kinematic and kinetic tasks plus functional training

"Transcranial alternating current stimulation in the head above the motor cortex area of one side of the brain, according to the hemiparesis side.~Electrodes with 3.14 cm2 of stimulation area will be used, therefore, the initial current intensity will be 0.21 mA, with a current density of 0.07 mA / cm2. The current intensity will be adjusted to the tactile sensory threshold and phosphenes of each patient, with in order to reduce such sensory effects, but considering that the decrease in current will not be greater than 10% of the initial intensity, in order to obtain a comparable configuration between subjects.~The frequency stimulation will be 7 Hz"

"Transcranial alternating current stimulation in the head above the motor cortex area of one side of the brain, according to the hemiparesis side.~Electrodes with 3.14 cm2 of stimulation area will be used, therefore, the initial current intensity will be 0.21 mA, with a current density of 0.07 mA / cm2. The current intensity will be adjusted to the tactile sensory threshold and phosphenes of each patient, with in order to reduce such sensory effects, but considering that the decrease in current will not be greater than 10% of the initial intensity, in order to obtain a comparable configuration between subjects.~The stimulation will be turn on for 30 seconds (at 70 Hz)"