Discussion
dysphagia
DYSPHAGIA
Swallowing involves a series of processes, such as cognitive processing, coordination of swallowing muscles and pleasure in eating, and the brain produces complex network connections. There is no uniform standard for tDCS treatment of dysphagia, such as the stimulation site, current, stimulation duration, electrode size, and treatment frequency. The tDCS is a non-invasive tool for inducing changes in cortical excitability via two electrodes, where the anode increases cortical excitability by depolarizing the resting membrane potential, while the cathode hyperpolarizes the resting membrane potential to reduce cortical excitability and promote the remodeling of brain functions [