| Cuneus | |
|---|---|
 Medial surface of left cerebral hemisphere. (Cuneus visible at left in red.) | |
 Sagittal MRI slice with the cuneus and lingual gyrus shown in red. | |
| Details | |
| Artery | posterior cerebral artery |
| Identifiers | |
| NeuroNames | 157 |
| NeuroLex ID | birnlex_1396 |
| TA98 | A14.1.09.224 |
| TA2 | 5485 |
| FMA | 61903 |
| Anatomical terms of neuroanatomy | |
Thecuneus (from Latin 'wedge';pl.:cunei) is a smaller lobe in theoccipital lobe of thebrain. The cuneus is boundedanteriorly by theparieto-occipital sulcus andinferiorly by thecalcarine sulcus.
The cuneus (Brodmann area 17) receives visual information from the same-sided superior quadrantic retina (corresponding to contralateral inferior visual field). It is most known for its involvement in basic visual processing.Pyramidal cells in thevisual cortex (or striate cortex) of the cuneus, project toextrastriate cortices (BA 18,19). The mid-level visual processing that occurs in the extrastriate projection fields of the cuneus are modulated by extraretinal effects, like attention, working memory, and reward expectation.
In addition to its traditional role as a site for basic visual processing, gray matter volume in the cuneus is associated with better inhibitory control in bipolar depression patients.[1]
Pathologic gamblers have higher activity in the dorsal visual processing stream including the cuneus relative to controls.[2]
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