Our study will provide precise and intensive speech rehabilitation treatment program to patients with speech disorders after stroke, and compare clinical evaluations with the conventional speech therapy patient group.

Clinical evaluation tools will be performed before and after the treatment for all patients

• K-Western Aphasia Battery for aphasia assessment tools
• Cerebral blood flow changes with near-infrared spectroscopy

During the initial evaluation of this study, the patient's gender, age, and onset of stroke lesion occurrence are collected and a cognitive evaluation is performed. In addition, the K-Western Aphasia Battery for aphasia assessment tools(K-WAB) and Cerebral blood flow changes with near-infrared spectroscopy will be performed. All participants will be assigned to a test group or control group. In addition to the existing speech rehabilitation treatment, the test group will receive a speech rehabilitation program, and the control group will receive the same treatment as the existing speech rehabilitation treatment.

After treatment is completed, the K-WAB test and near-infrared spectroscopy will be performed again.

Inclusion Criteria:

• Adults over 19 years old
• Those with speech disorders that occurred after a stroke was diagnosed
• Those who can follow the clinical study procedures
• Those who voluntarily signed the consent form

Exclusion Criteria:

• Patients who have difficulty to consent to research and participate in speech rehabilitation programs due to cognitive decline