Clinical Trial on the Safety and Efficacy of Optimized Transcranial Direct Current Stimulation for the Swallowing Function in Patients With Post-Stroke Dysphagia

Exclusion Criteria

• •patients with recurrent stoke, traumatic brain injury, spine cord injury, and degenerative brain disease, such as Parkinson's disease, etc.
• •patients with deteriorated cognitive function unable to perform the clinical trial as instructed
• •patients with evidence of delirium, confusion, or other impairment of consciousness
• •patients with uncontrolled medical disease or surgical conditions
• •patients ineligible for Transcranial direct current stimulation (due to scalp condition, metallic material at the electrode attachment area, presence of a pacemaker or cochlear implant)
• •patients with previous experience within the last year using a stimulation device similar to the one use in this clinical trial or who have participated in related clinical trials
• •patients with severe neurologic disorder with concomitant major psychiatric disorder such as major depressive disorder and dementia
• •patients with history of uncontrolled epilepsy within 6 months
• •patients with medical contraindications for neuroimaging test, such as MRI;
• •patients who are taken contraindicated medications or require medication changes during the trial period that could influence cognitive/motor function changes via brain activation changes
• •patients who are pregnant, breastfeeding, or planning pregnancy during the trial period
• •patients considered medically ineligible for participation in the present trial beyond the criteria listened above.