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Topic: Calcarine sulcus

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	Study of the Visual Evoked Magnetic Field with the M-Sequence Technique -- Tabuchi et al. 43 (6): 2045 -- ...
		The ECD height is shown as a percentage ratio of the distance from the calcarine sulcus, and the depth is the ratio from the occipital pole to the total length of the calcarine sulcus, that is from the occipital (O) pole to the parieto-occipital (PO) sulcus.
		The caudal point of the calcarine sulcus is defined as the zero point, and the upper side of the calcarine sulcus is assumed to be positive.
		The coordinate plane is similar to a coronal section of the MR image, with the longitudinal fissure as the ordinate and the calcarine sulcus as the abscissa.
	www.iovs.org /cgi/content/full/43/6/2045 (5192 words)

	Occipital lobe
		The primary visual area is Brodmann area 17, located in the interior portion of the occipital lobe at the calcarine sulcus and sometimes continuing onto the surface of the lobe.
		The front edge of the occipital lobe is separated from the parietal lobe by the Parieto-occipital sulcus.
		Above the medial, Y-shaped sulcus lies the cuneus, and the area below the sulcus is the lingual gyrus.
	www.psychdaily.com /encyclopedia.php?term=Occipital+lobe (468 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		OCCIPITALT LOBUS OCCIPITALIS: The occipital lobe is separated from the parietal lobe by the parieto-occipital sulcus and is bounded anteriorly by the preoccipital notch on the ventral cortical surface and the parieto-occipital sulcus on the medial and dorsal cortical surface.
		The parieto- occipital sulcus is a major sulcus on the medial cortical surface and extends as a groove onto the dorsolateral aspect of the cortex.
		The primary visual area (Brodmann's area 17) is aligned along the walls of the calcarine sulcus and in the surface gyri immediately dorsal and ventral, the cuneus and lingual gyrus respectively on the medial cortical surface.
	www.student.uib.no /~st03006/atlas/materiale/tekst/OCCIPITALT.txt (1214 words)

	Section 1A Lab (Site not responding. Last check: 2007-10-15)
		This sulcus extends from the medial surface of the hemisphere over the lateral surface to the lateral or Sylvian fissure that separates the frontal and parietal lobes from the temporal lobe.
		The precentral sulcus and the postcentral sulcus are shallower, shorter, less prominent sulci that run parallel to the central sulcus.
		The precentral gyrus is bounded by the precentral sulcus and the central sulcus.
	idp.med.ufl.edu /Core/Spring/1A_6007/S1ALab.html (1820 words)

	calcarine sulcus - definition from Biology-Online.org
		A deep fissure on the medial aspect of the cerebral cortex, extending on an arched line from the isthmus of the fornicate gyrus back to the occipital pole, marking the border between the lingual gyrus below and the cuneus above it.
		The cortex in the depth of the sulcus corresponds to the horizontal meridian of the contralateral half of the visual field.
		Synonym: sulcus calcarinus, calcarine fissure, fissura calcarina, posthippocampal fissure.
	www.biology-online.org /dictionary/calcarine_sulcus (71 words)

	Structure-Function Spatial Covariance in the Human Visual Cortex -- Hasnain et al. 11 (8): 702 -- Cerebral Cortex
		pole to the junction with the parieto-occipital sulcus.
		the calcarine sulcus in its corresponding hemisphere, and with
		counterpart, spatially covaried with the calcarine sulcus, with
	cercor.oxfordjournals.org /cgi/content/full/11/8/702 (8892 words)

	Surface Curve Protocol
		The marginal ramus of the cingulate sulcus defines the posterior border of the paracentral lobule, a medial region of the cerebrum that spans from the precentral to postcentral gyrus.
		The anterior calcarine continues to the posterior calcarine, yet both are separated by the intersection of the parieto-occipital sulcus, hence the Y shape.
		The precuneus is bordered by the marginal ramus of the cingulate sulcus anteriorally and the parieto-occipital sulcus posteriorally.
	www.loni.ucla.edu /~khayashi/Public/medial_surface (2672 words)

	On the Brain of Ateles Paniscus
		Although not so deep as the calcarine sulcus, it is continued upwards and outwards, for a considerable distance; and throughout its whole course, the bottom, or roof, of the sulcus underlies the floors of the descending and posterior cornua.
		From the region especially named by anatomists "eminentia collateralis," the sulcus n, n, which may be conveniently termed the 'collateral' sulcus, is continued forwards and backwards, and preserves, as might be expected, a similar relation to the parts which are the continuation of the eminentia collateralis, viz.
		Lastly, the collateral sulcus, n n n, is traceable–though interrupted at intervals–throughout the same extent, as in Man; and of the three parts into which it is broken, the posterior is continued back even further than in him, and passes a little on to the outer and posterior face of the hemispheres.
	aleph0.clarku.edu /huxley/SM2/Ateles.html (3905 words)

	Linear Systems Analysis of Functional Magnetic Resonance Imaging in Human V1 -- Boynton et al. 16 (13): 4207 -- Journal ...
		Data were collected from a single slice through the calcarine sulcus in the right hemisphere of each subject, parallel to and ~5 mm from the medial wall.
		Calcarine pixels were selected by hand from an anatomical image that was taken in the same plane as the functionals preceding each experimental session (Fig.
		Pixels in the calcarine sulcus again were selected by hand from the aligned anatomical image, and the time course of the fMRI signal again was extracted for each of the selected pixels.
	www.jneurosci.org /cgi/content/full/16/13/4207 (9505 words)

	Primary sensory areas
		The somasthetic area (SSII, BA 1, BA 2, BA 3) is across the central sulcus and behind the primary motor area configured to generally correspond with the arrangement of nearby motor cells related to specific body parts.
		The visual area known as V1, striate cortex, or (BA 17) is located on the calcarine sulcus deep within the inside folds of the occipital lobe.
		The auditory area BA 41 BA 42 is located on the transverse gyri that lie on the back of the superior temporal convolution of the temporal lobes.
	www.brainyencyclopedia.com /encyclopedia/p/pr/primary_sensory_areas.html (222 words)

	Journal of Vision - Independent anatomical and functional measures of the V1/V2 boundary in human visual cortex, by ...
		Either 16 (parallel to calcarine sulcus) or 32 slices (1.5 mm thick) were scanned at an in-plane resolution of 300 μm x 300 μm (matrix size 384 x 512).
		The calcarine sulcus is at the center of the flat map.
		In these subjects, although the calcarine sulcus can be a guide to the location of area 17, there is considerable variability in the location and size of this region even in normal, sighted subjects.
	www.journalofvision.org /5/2/1/article.aspx (6123 words)

	fMRI - Recent fMRI Abstracts - Extra Information
		The calcarine sulcus was identified on each of the slices.
		On some slices a thin ribbon of low signal intensity within the middle cortical laminae was observed to follow the calcarine sulcus, as illustrated on Fig.
		Voxels that were activated in response to the display followed the calcarine sulcus and included the presumptive Stria of Gennari (Fig 1b).
	www.fmri.org /proj_more/proj_6.htm (755 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		The Central Sulcus is the posterior boundary of the
		In summary, the Central Sulcus separates the Frontal and Parietal Lobes, and the Precentral and Postcentral Gyri are in the Frontal and Parietal Lobes, respectively.
		Since the Calcarine Fissure is along the medial aspect of the Occipital Lobe, the primary visual area is largely on the medial aspect of the Occipital Lobe.
	kumc.edu /research/medicine/pharmacology/CAI/webCAI/anatomy/ua01.wbc (946 words)

	mrVista WorkFlow
		The upper visual field is represented in the lower part of the brain ventral/inferior to the calcarine sulcus, while the lower visual field is represented in the upper part of the brain dorsal/superior to the calcarine sulcus.
		This means that the ventral side of the flat map should contain mostly colors confined to one quarter of the colormap, representing one quadrant of the hemifield, and the dorsal side should contain the other quarter (half of the colormap for this hemisphere).
		V1: The upper and lower quadrants should meet at the representation of the horizontal meridian, near the calcarine sulcus.
	white.stanford.edu /~sweta/VistaLab/Manual/retinotopy.html (1976 words)

	Online Lesson
		The majority is in the walls of the CALCARINE SULCUS of this lobe.
		Destruction of the direct optic tracts between the lateral geniculate nucleus and the calcarine sulcus (through posterior limb of internal capsule.
		Destruction of the superior lip of the calcarine fissure.
	jan.ucc.nau.edu /~brc/sph405/class/afferent/visual/lesson3-2-2.html (630 words)

	Cranial capacity and endocranial casts
		The frontal and parietal are separated by the central sulcus, the parietal and occipital by the parieto-occipital sulcus, and the parietal and frontal from the temporal by the lateral fissure.
		Homo shows an expansion in the frontal area, as evidenced by the central sulcus which lies posterior to the midpoint, whereas in gibbons and chimpanzees the sulcus is anterior to the midpoint.
		In particular, the lunate sulcus, a groove on the rear portion of the brain which demarcates the visual portion of the brain, occupied a posterior position, as in humans (see Figure 5).
	www.answersingenesis.org /tj/v4/i1/cranial.asp (3773 words)

	Medical Dictionary: Calcarine sulcus - WrongDiagnosis.com
		Calcarine sulcus: a sulcus in the mesial surface of the occipital lobe of the cerebrum
		Terms that may be interchangeable with Calcarine sulcus:
		The following list attempts to classify Calcarine sulcus into categories where each line is subset of the next.
	www.wrongdiagnosis.com /medical/calcarine_sulcus.htm (229 words)

	Virtual Hospital: The Human Brain: Chapter 5: The Cerebral Hemispheres (Site not responding. Last check: 2007-10-15)
		Above the splenium of the corpus callosum, the cingulate sulcus turns abruptly upwards to reach the superior margin of the hemisphere.
		Posteriorly, it becomes very narrow under the splenium of the corpus callosum and is continuous with the isthmus, which separates the splenium from the calcarine sulcus or fissure.
		The cuneus is a wedge of cortex enclosed by the parieto-occipital and the calcarine sulci and the superomedial margin of the hemisphere.
	www.vh.org /adult/provider/anatomy/BrainAnatomy/Ch5Text/Section03.html (275 words)

	IngentaConnect How early are fetal cerebral sulci visible at prenatal ultrasound... (Site not responding. Last check: 2007-10-15)
		In the present series, the gestational ages at which these sulci were always visible were as follows: parieto-occipital fissure >20.5 weeks, calcarine sulcus >21.9 weeks, cingulate sulcus >24.3 weeks and convexity sulci >27.9 weeks.
		The insula and its margin (the circular sulcus) and the overgrowing opercula undergo characteristic maturation.
		The circular sulcus at the margin of the insula was initially smooth but started becoming angular after about 17 weeks as it started to be overgrown by the parietal and temporal lobe opercula.
	www.ingentaconnect.com /content/jws/uog/2004/00000024/00000007/art00003 (365 words)

	[Surefit-users] identification of calcarine sulcus (Site not responding. Last check: 2007-10-15)
		I am using spm and if I use normalized 3d-images I get correct identification of the calcarine sulcus.
		I also get more problems segmenting probably due to "smearing" when nonlinear corrections are done.
		When I use the original data which I bring into correct position, segmentation works much smoother but the calcarine sulcus is found laterally and more dorsal than the real calcarine sulcus.
	brainmap.wustl.edu /pipermail/caret-users/2002-August/000001.html (208 words)

	New Page 1
		-anterior end usually intersects with inferior postcentral (some texts call inferior postcentral the ascending intraparietal sulcus)
		-posterior end usually forms a T-junction with the transverse occipital sulcus (just posterior to the parieto-occipital fissure)
		-central sulcus (red) -precentral sulcus (green) -transverse-occipital (purple)
	defiant.ssc.uwo.ca /Jody_web/fMRI4Dummies/cortical_sulci.htm (366 words)

	Eye Dictionary
		The portion of the occipital lobe of the brain where sight takes place.
		The central visual field is represented in the posterior calcarine sulcus.
		The peripheral visual field is represented in the anterior portion of the calcarine sulcus.
	www.visionrx.com /library/dictionary/eye_dictionary_c.asp (2516 words)

	NEUROANATOMY NOTES:
		-posterior limb=corticospinal tract (contralateral hemiparesis); sensory radiations from thalamus to sensory cortex; auditory radiations from medial geniculate body to auditory cortex (superior temporal gyrus); visual radiations from lateral geniculate body to calcarine cortex
		-LGB projects to visual cortex; upper division (superior retinal quadrants/inferior visual field) projects to superior bank of calcarine sulcus; lower division (Meyer’s loop) (inferior retinal quadrants/superior visual field) projects to lower bank of calcarine sulcus
		-supplies medial surface of hemisphere as far posteriorly as the parieto-occipital sulcus (leg/foot area of motor and sensory areas)
	www.ucalgary.ca /~mwwalsh/neuroanatomy.html (1504 words)

	Visual Cortices (Site not responding. Last check: 2007-10-15)
		(C,D) ring pattern of calcarine activity (red, high; green, low).
		represented as a posterior-anterior gradient along the calcarine sulcus.
		neural (and metabolic) activity from posterior to anterior calcarine.
	keck.ucsf.edu /~blondie/PSYCH254/Lecture09c/Tootell1998_A.html (191 words)

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