Parieto-occipital sulcus

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Parieto-occipital sulcus
Gray726 parieto-occipital sulcus.png
Fig. 726: Lateral surface of left cerebral hemisphere, viewed from the side.
Gray727 parieto-occipital fissure.svg
Fig. 727: Medial surface of left cerebral hemisphere.
Latin sulcus parietooccipitalis, fissura parietooccipitalis
Gray's p.820
NeuroNames hier-33
NeuroLex ID Parieto-occipital sulcus
TA A14.1.09.108
FMA FMA:83754
Anatomical terms of neuroanatomy

Only a small part of the Parietooccipital Fissure ( parieto-occipital sulcus or Parietoöccipital fissure) is seen on the lateral surface of the hemisphere, its chief part being on the medial surface.

The lateral part of the parietooccipital fissure (Fig. 726) is situated about 5 centimeters (cm) in front of the occipital pole of the hemisphere, and measures about 1.25 cm. in length.

The medial part of the parietooccipital fissure (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. It marks the boundary between the cuneus and precuneus, and also between the parietal and occipital lobes.


The parieto-occipiatal 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.



  1. ^ 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 (EJN) 8 (2): 353–364. doi:10.1111/j.1460-9568.1996.tb01219.x. Retrieved 18 June 2014. 
  2. ^ 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. doi:10.1016/0028-3932(95)00133-6. Retrieved 18 June 2014. 
  3. ^ 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 (Oxford University Press) 122 (10): 1973–1987. doi:10.1093/brain/122.10.1973. Retrieved 18 June 2014. 
  4. ^ Rowe, J.B.; Owen, Adrian M.; Johnsrude, Ingrid S.; Passingham, R.E. (2001). "Imaging the Mental Components of a Planning Task". Neuropsychologia (Pergamon Press) 39 (3): 315–327. doi:10.1016/S0028-3932(00)00109-3. Retrieved 18 June 2014. 
  5. ^ 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. doi:10.1001/archneur.1993.00540060066020. Retrieved 18 June 2014. 
  6. ^ 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. doi:10.1016/0028-3932(93)90104-8. PMID 8127433. 

External links[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.