Prefrontal Brain Activity and ECG Patterns in Stroke and Healthy Adults

Inclusion Criteria: * Intracerebral Hemorrhage Group (Stroke Patients) Adults aged 19 to 80 years. Diagnosed with intracerebral hemorrhage based on clinical evaluation and neuroimaging findings. Able to read and understand the participant information sheet and consent form, and capable of completing questionnaires in the study language. Voluntarily agrees to participate in the study, provides written informed consent, and is able to participate for the entire study period. Cerebral Infarction Group (Stroke Patients) Adults aged 19 to 80 years. Diagnosed with cerebral infarction (ischemic stroke) based on clinical evaluation and neuroimaging findings. Able to read and understand the participant information sheet and consent form, and capable of completing questionnaires in the study language. Voluntarily agrees to participate in the study, provides written informed consent, and is able to participate for the entire study period. Healthy Adult Group Adults aged 19 to 80 years. No history of stroke or transient ischemic attack (TIA). No major stroke risk factors such as hypertension, diabetes mellitus, or hyperlipidemia. No chronic diseases, including cardiovascular disease, chronic kidney disease, or chronic pulmonary disease. No psychiatric disorders, such as depression or schizophrenia. Not taking medications that may affect cerebral hemodynamics, including antihypertensive agents, anticoagulants, antiplatelet agents, or antidepressants. Able to read and und…