occipital lobe


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Related to occipital lobe: frontal lobe, parietal lobe, temporal lobe

occipital lobe

n.
The posterior lobe of each cerebral hemisphere, having the shape of a three-sided pyramid and containing the visual center of the brain.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

occipital lobe

n
(Anatomy) the posterior portion of each cerebral hemisphere, concerned with the interpretation of visual sensory impulses
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

occip′ital lobe`


n.
the most posterior lobe of each cerebral hemisphere, behind the parietal and temporal lobes.
[1885–90]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

oc·cip·i·tal lobe

(ŏk-sĭp′ĭ-tl)
The rearmost lobe of each cerebral hemisphere, containing the main visual centers of the brain.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.occipital lobe - that part of the cerebral cortex in either hemisphere of the brain lying in the back of the headoccipital lobe - that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head
calcarine fissure, calcarine sulcus - a sulcus in the mesial surface of the occipital lobe of the cerebrum
cerebral cortex, cerebral mantle, cortex, pallium - the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
occipital gyrus - any of the convolutions of the outer surface of the occipital lobe of the cerebrum
lobe - (anatomy) a somewhat rounded subdivision of a bodily organ or part; "ear lobe"
area 17 of Brodmann, Brodmann's area 17, first visual area, striate area, striate cortex - the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
týlní lalok
oksipitaalilohkotakaraivolohko
References in periodicals archive ?
Compared with the normal elderlies, ReHo values decreased in aMCI patients in the left temporal lobe (middle temporal gyrus and inferior temporal gyrus), left parahippocampal gyrus, occipital lobe, lingual gyrus, precuneus, and other regions (P<0.05; Figure 3, Table 1), while ReHo values increased in the right side frontal lobe (inferior frontal gyrus), left superior temporal gyrus, precentral gyrus (frontal lobe), right thalamus, the left fusiform gyrus, and other regions (P<0.05; Figure 4, Table 2).
One of the bullets pierced her brain's occipital lobe, which controls eyesight.
His mild neurological and normal neurocognitive status did not correlate with the pial angiomatosis and cortical atrophy extent, detected by MRI, affecting almost the whole medial surface of the right occipital lobe. These results prove that there is a big discrepancy between neuroimaging findings and clinical presentation in suspected cases of SWS variant, and neither clinical examination nor MRI alone is sufficient to make the correct diagnosis.
True or False: The occipital lobe is part of the cerebellum.
They found that participants with alcohol dependence as defined by the DSM-IV had significantly greater gray matter volume deficits in their frontal, temporal, parietal, cingulate, and insular cortices, compared with controls--most prominently in the frontal subregions--with the only exception being the occipital lobe. When age was taken into account, age-related volume deficits were seen in the control group in five of the six cortical regions, but the alcoholism group showed a significantly greater deficit in the precentral and superior frontal cortex.
(19) Occipital lobe tumours may cause visual hallucinations, auditory hallucinations, abnormalities in smell and taste, and increased intracranial pressure.
The radiological cMRI diagnosis mostly involved changes in the occipital lobe (91%), but also in the parietal lobe (73%), frontal lobe (36%) and temporal lobe (39%) (Fig.
They found that participants with alcohol dependence as defined by the DSM-IV had significantly greater gray matter volume deficits in their frontal, temporal, parietal, cingulate, and insular cortices, compared with controls --most prominently in the frontal subregions --with the only exception being the occipital lobe. When age was taken into account, age-related volume deficits were seen in the control group in five of the six cortical regions, but the alcoholism group showed a significantly greater deficit in the precentral and superior frontal cortex.
In the Mississippi site, there was some evidence to support a protective association between higher PM exposures and larger AD signature region, temporal lobe, and occipital lobe volumes, regardless of exposure period; associations with other regions were typically null.
Contrast-enhanced cranial CT scan revealed acute parenchymal hemorrhage on the right occipital lobe amounting to 18.4 cc, with extension to the right parietal lobe, surrounding cerebral edema, subfalcine herniation, and beginning uncal herniation (Figure 1).
N1 amplitude in the temporal lobe was significantly smaller than that in the parietal lobe (post hoc, p < 0.01) and that in the occipital lobe (post hoc, p <0.01).
Visual evoked potential (VEP) measures the functional integrity of the visual pathways from retina via the optic nerves to the visual cortex [12] and could be obtained by the placement of electrodes at occipital lobe [12].