The human brain tissue is divided into cerebral hemispheres, cerebellum, and also brain stem. The difference between the brain and cerebellum is as follows: 1. The cerebral hemispheres are divided into left cerebral hemisphere and right cerebral hemisphere, which are extremely complex in function. In addition to innervating motor sensory nerves, they are also related to higher neural activities, such as the patient’s higher centers of cognition, emotion, behavior, and language, which are all in the cerebral hemisphere. The main function of the right cerebral hemisphere is the cognitive center, where the patient can dominate in art, space, geometry, and also person recognition. The left cerebral hemisphere is dominant in language, logical thinking, and analysis; 2. The function of the cerebellum is in charge of balance, which can regulate muscle tone and regulate random movements, and can make corrections to the patient’s motor behavior.