Inneuroanatomy, theparieto-occipital sulcus (also called theparieto-occipital fissure) is a deepsulcus in thecerebral cortex that marks the boundary between thecuneus andprecuneus, and also between theparietal andoccipital lobes. Only a small part can be seen on the lateral surface of the hemisphere, its chief part being on the medial surface.
Thelateral part of the parieto-occipital sulcus (Fig. 726) is situated about 5 cm in front of theoccipital pole of the hemisphere, and measures about 1.25 cm. in length.
Themedial 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 thecalcarine fissure below and behind the posterior end of thecorpus callosum. In most cases, it contains a submergedgyrus.
The parieto-occipital lobe has been found in various neuroimaging studies, includingPET (positron-emission-tomography) studies,[1][2][3][4] andSPECT (single-photon emission computed tomography) studies,[5][6] to be involved along with thedorsolateral prefrontal cortex duringplanning.
^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.doi:10.1111/j.1460-9568.1996.tb01219.x.PMID8714706.S2CID21770063.
^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.PMID8127433.S2CID13351226.
This article incorporates text in thepublic domain frompage 820 of the 20th edition ofGray's Anatomy(1918)
