Parieto-occipital sulcus explained
| Parieto-occipital sulcus |
| Latin: | sulcus parietooccipitalis, fissura parietooccipitalis |
In neuroanatomy, the parieto-occipital sulcus (also called the parieto-occipital fissure) is a deep sulcus in the cerebral cortex that marks the boundary between the cuneus and precuneus, and also between the parietal and occipital lobes. Only a small part can be seen on the lateral surface of the hemisphere, its chief part being on the medial surface.
The lateral part of the parieto-occipital sulcus (Fig. 726) is situated about 5 cm in front of the occipital pole of the hemisphere, and measures about 1.25 cm. in length.
The medial part of the parieto-occipital sulcus (Fig. 727) runs downward and forward as a deep cleft on the medial surface of the hemisphere, and joins the calcarine fissure below and behind the posterior end of the corpus callosum. In most cases, it contains a submerged gyrus.
Function
The parieto-occipital lobe has been found in various neuroimaging studies, including PET (positron-emission-tomography) studies,[1] [2] [3] [4] and SPECT (single-photon emission computed tomography) studies,[5] [6] to be involved along with the dorsolateral prefrontal cortex during planning.
External links
- Web site: Anatomy diagram: 13048.000-3. Roche Lexicon - illustrated navigator. Elsevier. https://web.archive.org/web/20120722052451/http://www.tk.de/rochelexikon/pics/s13048.000-3.html. 2012-07-22.
- https://web.archive.org/web/20070316043257/http://www2.umdnj.edu/~neuro/studyaid/Practical2000/Q30.htm
Notes and References
- Owen . Adrian M. . Doyon . Julien . Petrides . Michael . Evans . Alan C. . 1996 . Planning and Spatial Working Memory: a Positron Emission Tomography Study in Humans . European Journal of Neuroscience . 8 . 2 . 353–364 . 10.1111/j.1460-9568.1996.tb01219.x . 8714706 . 21770063 .
- Baker . S.C. . Rogers . R.D. . Owen . A.M. . Frith . C.D. . Dolan . R.J. . Frackowiak . R.S.J. . Robbins . T.W. . June 1996 . Neural Systems Engaged by Planning: a PET Study of the Tower of London Task . Neuropsychologia . 34 . 6 . 515–526 . 10.1016/0028-3932(95)00133-6 . 18 June 2014. 21.11116/0000-0001-A39D-6 . 8736565 . 7366716 . free .
- Dagher . Alain . Owen . Adrian M. . Boecker . Henning. Brooks . David J.. October 1999 . Mapping the Network for Planning: a Correlational PET activation study with the Tower of London Task. Brain . 122 . 10 . 1973–1987 . 10.1093/brain/122.10.1973 . 10506098 . free .
- Rowe . J.B. . Owen . Adrian M. . Johnsrude . Ingrid S. . Passingham . R.E. . 2001 . Imaging the Mental Components of a Planning Task . Neuropsychologia . 39 . 3 . 315–327 . 10.1016/S0028-3932(00)00109-3 . 11163609 . 21819578 . 18 June 2014.
- Rezai . Karim . Andreasen . Nancy C. . Alliger . Randy . Cohen . Gregg . Swayze . Victor II . O'Leary . Daniel S.. June 1993 . The Neuropsychology of the Prefrontal Cortex . Archives of Neurology . 50 . 6 . 636–642 . 10.1001/archneur.1993.00540060066020 . 8503801 . 18 June 2014.
- Morris . R.G. . Ahmed . S. . Syed . G.M. . Toone . B.K. . December 1993 . Neural Correlates of Planning Ability: Frontal Lobe Activation during the Tower of London Test. . Neuropsychologia . 31 . 12 . 1367–1378 . 8127433 . 10.1016/0028-3932(93)90104-8. 13351226 .
