Spatial updating in human parietal cortex
The intraparietal sulcus and adjacent gyri are essential in guidance of limb and eye movement, and—based on cytoarchitectural and functional differences—is further divided into medial (MIP), lateral (LIP), ventral (VIP), and anterior (AIP) areas.Cortical functions of the parietal lobe are: Portions of the parietal lobe are involved with visuospatial processing.The sensory inputs from the right side of the body go to the left side of the brain and vice versa.The syndrome of hemispatial neglect is usually associated with large deficits of attention of the non-dominant hemisphere.The parietal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals.
A lesion commonly in the right superior or inferior parietal lobule leads to hemineglect.
Optic ataxia is associated with difficulties reaching toward objects in the visual field opposite to the side of the parietal damage.
Some aspects of optic ataxia have been explained in terms of the functional organization described above.
Several areas of the parietal lobe are important in language processing.
The somatosensory cortex can be illustrated as a distorted figure – the homunculus (Latin: "little man"), in which the body parts are rendered according to how much of the somatosensory cortex is devoted to them.
Amorphosynthesis is a loss of perception on one side of the body caused by a lesion in the parietal lobe.