Intraparietal sulcus

The intraparietal sulcus (IPS) is located on the lateral surface of the parietal lobe, and consists of an oblique and a horizontal portion. The IPS contains a series of functionally distinct subregions that have been intensively investigated using both single cell neurophysiology in primates and human functional neuroimaging. Its principle functions are related to perceptual-motor coordination (for directing eye movements and reaching) and visual attention.

The IPS is also thought to play a role in other functions, including processing symbolic numerical information, and interpreting the intent of others.