Inclusion Criteria:  Unilateral stroke patients aged 19 to 80 years Patients with subacute stroke within 4 weeks of onset Patients with moderate or severe upper extremity dysfunction with an upper extremity FMA score of less than 58 in motor function evaluation  Exclusion Criteria:  Accompanied by an existing serious neurogenic disease Existing significant psychiatric disorders such as major schizophrenia, bipolar disorder, and dementia. If there are difficulties in conducting the research Any patients who are judged by the investigator to be difficult to participate in this study  Exclusion criteria for transcranial direct current stimulation:  i) Patients with implanted medical devices in the body (e.g. pacemakers) ii) When a metal object is inserted in the skull iii) If there is a wound on the skin of the attachment site iv) history of epilepsy v) Pregnant and lactating women