Study of the Optimal Number of Repetitions to Investigate the Cerebral Activity by fNIRS During a Voluntary Movement and an Illusory Movement Induced by Vibration

"The protocol comprises two different modalities: Voluntary movement and illusory movement of the right upper limb induced by TVS.~The experiment will begin and end with a one-minute rest period. Participants will be asked to open and close their right hand 20 times in 10 seconds. Similarly, they will experience 10 seconds of TVS-induced illusory movement 20 times. Each task epoch will be preceded by a 12-20 second resting period.~Both conditions will be randomized and counterbalanced. Participants can start with either the voluntary movement task or the illusory."