Study of Cortical Activation During Hand and Shoulder Movements in Healthy Subjects

Characterization of cortical activation patterns during movements in healthy adults may help our understanding of how the injured brain works. Upper limb motor tasks are commonly used to assess impaired motor function and to predict recovery in individuals with neurological disorders such as stroke. This study aimed to explore cortical activation patterns associated with movements of the hand and shoulder using functional near-infrared spectroscopy (fNIRS). The investigators hypothesized that the activation pattern observed with fNIRS would differ for shoulder and hand movements. More specifically, the investigators hypothesized that the cerebral activation during hand movements would mainly involve the contralateral hemisphere, particularly the lateral part of primary motor cortex; whereas activation during shoulder movements would be more medial and more extensive than that of the hand.

Inclusion Criteria:Age:18 to 40Right handedNo neurological, rhumatological or cardiac diseaseHaving social security coverageHaving expressed his non-objectionExclusion Criteria:Person under tutorship or curatorshipKnown allergy to components of the fNIRS device: neoprenePerson with known vascular problems