Inclusion Criteria:

• It meets the diagnostic criteria of the "Guidelines for the Prevention and Treatment of Cerebrovascular Diseases in China", and is diagnosed as cerebral infarction or cerebral hemorrhage by CT or MRI.
• The first stroke occurred;
• The muscle strength of the flexor and extensor muscles of the affected finger is ≤ grade 1.
• Right-handed player
• Muscle tone improvement: Asworth level 2 or below;
• The disease course is within 6 months and the condition is stable.
• Age: 18 to 75 years old, with normal vision and hearing or corrected to normal.

Exclusion Criteria:

• Those with an MMSE score less than 20, severe memory, communication and speech command comprehension disorders, and those who cannot cooperate with examinations and treatments;
• Those with a history of epilepsy;
• Those with a history of stroke, traumatic brain injury or brain tumor in the past;
• Those with peripheral nervous system injuries other than stroke as diagnosed by imaging;
• Those with visual spatial impairments such as visual field defects and unilateral neglect;
• Skull defect or metal bone plates
• For those who are not suitable for functional near-infrared examination;
• Those with a history of intracranial surgery.
• Patients with lesion areas in the cerebellum or brainstem.