The cerebral hemispheres can be mainly divided into frontal, parietal, temporal, occipital, insula, and limbic regions, which have different functions.
1. Frontal lobe: located above the lateral fissure and in front of the central sulcus, it is mainly related to language and random movement, and contains functional areas such as cortical motor area, cortical lateral visual center, and motor speech center.
2. parietal lobe: located behind the central sulcus, in front of the parieto-occipital sulcus and above the extension of the lateral fissure, it is mainly related to sensory functions, which includes cortical sensory areas, the center of utilization, the center of visual speech and other functional areas.
3. Temporal lobe: located below the lateral fissure and in front of the parieto-occipital sulcus, it is mainly related to auditory, olfactory, memory, association and other functions, mainly including the sensory speech center, auditory center, olfactory center and other functional areas.
4. Occipital lobe: located in the parieto-occipital sulcus and the posterior part of the preoccipital notch, it is mainly related to vision, and damage to occipital lobe will lead to visual impairment.
5. Insula and limbic lobe: mainly related to higher nervous, mental and visceral activities, and when damaged, symptoms such as mental behavioral abnormalities, slow reaction, and visceral activity disorders will occur.