Effect of Afferent Oropharyngeal Pharmacological and Electrical Stimulation on Swallow Response and on Activation of Human Cortex in Stroke Patients With Oropharyngeal Dysphagia

Patients will receive the administration of a TRPV1 agonist (natural capsaicin) supplement before each meal, 3 meals/day, 5 days/week for 2 consecutive weeks. The TRPV1 agonist will be provided by the pharmacy of the center.

Includes neuron stimulation treatment of 1 session / day of pharyngeal electrical stimulation of 10 min duration, 3 days/week during 1 week, done at the same center.

Trans-cutaneous electrical stimuli will be applied 5 seconds every minute during 1 hour daily session, 5 days/week during 2 consecutive weeks at the same centre.