The investigators collect and analyze the alpha and beta wave of EEG activity at the motor cortices of the participants, When the motor task is being performed. The Brodmann area 10-20 method and portable EEG equipment was used in the single-center study.

To understand the motor mechanism of stroke patients with motor dysfunction, an EEG motor movement and imagery dataset for Stroke will be created. 120 subjects will be enrolled in the single-center study. The investigators collect and analyze the EEG activity at the motor cortices of the participants, When the motor movement or imagery task is being performed. The alpha and beta wave of EEGs were recorded from 32 electrodes as per the international 10-20 system with portable EEG equipment.

Inclusion Criteria:

1. The diagnosis of cerebral infarction conforms to the diagnostic criteria of Chinese guidelines for the diagnosis and treatment of acute ischemic stroke 2018, and the diagnosis of intracerebral hemorrhage conforms to the diagnostic criteria of Chinese guidelines for the diagnosis and treatment of intracerebral hemorrhage 2019.
2. First onset.
3. Age ≥ 18 years old.
4. Motor dysfunction of upper and / or lower limbs: muscle strength decreased by 0 to 5-grade and / or ataxia.
5. Informed consent has been signed.

Exclusion Criteria:

1. Vital signs are unstable.
2. Serious circulatory system, respiratory system, motor system and other diseases, such as atrial fibrillation, heart failure, pulmonary infection, severe liver and kidney insufficiency, lower extremity venous thrombosis and other serious diseases.
3. Functional impairment of upper or lower limbs caused by other diseases of nervous system or other reasons, such as fracture, deformity, etc.
4. Unable to cooperate to complete the examination, such as mental disorder, cognitive impairment, visual impairment, sitting balance disorder, etc
5. Other reasons: alcoholism; Skull defect; Head skin defect, etc.

Patients with motor dyfunction in Xuanwu Hospital of Capital Medical University were admitted from January 1, 2022 to December 31, 2023