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 principal functions are related to perceptual-motor coordination (e.g., directing eye movements and reaching) and visual attention, which allows for visually-guided pointing, grasping, and object manipulation that can produce a desired effect.
| Intraparietal sulcus | |
|---|---|
Lateral surface of left cerebral hemisphere, viewed from the side. (Intraparietal sulcus visible at upper right, running horizontally.) | |
Right cerebral hemisphere, viewed from the side. The region colored in blue is parietal lobe of the human brain. Intraparietal sulcus runs horizontally at the middle of the parietal lobe. | |
| Details | |
| Part of | Parietal lobe |
| Identifiers | |
| Latin | sulcus intraparietalis |
| Acronym(s) | IPS |
| NeuroNames | 97 |
| NeuroLex ID | birnlex_4031 |
| TA98 | A14.1.09.127 |
| TA2 | 5475 |
| FMA | 83772 |
| Anatomical terms of neuroanatomy | |
The IPS is also thought to play a role in other functions, including processing symbolic numerical information, visuospatial working memory and interpreting the intent of others.