- Source: Cuneus
The cuneus (from Latin 'wedge'; pl.: cunei) is a smaller lobe in the occipital lobe of the brain. The cuneus is bounded anteriorly by the parieto-occipital sulcus and inferiorly by the calcarine sulcus.
Function
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 the visual cortex (or striate cortex) of the cuneus, project to extrastriate 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.
Clinical research
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.
Pathologic gamblers have higher activity in the dorsal visual processing stream including the cuneus relative to controls.
Gallery
References
General sources
Further reading
Sherrington, Charles Scott (1911). "Brain" . In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 4 (11th ed.). Cambridge University Press. pp. 391–413. See p. 397 for reference to "cuneus".
External links
Kata Kunci Pencarian:
- Onthophagus cuneus
- Aksara paku
- Paus Paulus V
- Gyrus
- Lauh tanah liat
- Daftar spesies Scarabaeidae
- Cuneus
- Cuneus (disambiguation)
- Algarve
- Myxobolus cuneus
- Cuneus Frisionum
- Polymerus rubrocuneatus
- Leiocephalus cuneus
- Albania
- Occipital lobe
- Cuneus Prophetarum
