This is usually due to lesions in the posterior parietal lobe. Portions of the parietal lobe are involved with visuospatial processing. It is located in the occipital lobe. Damage specifically to the anterior portion of the left temporal lobe can cause savant syndrome. Epilepsy of the mesial temporal lobe is associated with HHV-6 infection. Potential causes of cognitive alterations in temporal lobe epilepsy. Other theories suggest that distorted body image perceptions stem from within the parietal lobe. It is caused by damage to the parietal lobe of the brain. Substantia innominata connects the thalamus, temporal lobe, and insula. It is a form of dementia associated with severe frontal lobe dysfunction. A lesion within the lateral frontal lobe was discovered during Lelong's autopsy. The cerebellum is divided into an anterior lobe, a posterior lobe, and the flocculonodular lobe. Schizophrenia is also related to lack of dopamine neurotransmitter in the frontal lobe. There are four principal gyri in the frontal lobe. Several areas of the parietal lobe are important in language processing.