visual cortex

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Related to Area 17: Brodmann area 17

cortex

 [kor´teks] (pl. cor´tices) (L.)
the outer layer of an organ or other structure, as distinguished from its inner substance or medulla. adj., adj cor´tical.
adrenal cortex (cortex of adrenal gland) the outer, firm layer comprising the larger part of the adrenal gland; it secretes mineralocorticoids, androgens, and glucocorticoids.
cerebellar cortex the superficial gray matter of the cerebellum.
cerebral cortex (cortex cerebra´lis) the convoluted layer of gray matter covering each cerebral hemisphere. See also brain.
renal cortex the granular outer layer of the kidney, composed mainly of glomeruli and convoluted tubules, extending in columns between the pyramids that constitute the renal medulla.
striate cortex part of the occipital lobe that receives the fibers of the optic radiation and serves as the primary receiving area for vision. Called also first visual area.
visual cortex the area of the occipital lobe of the cerebral cortex concerned with vision; the striate cortex is also called the first visual area, and the adjacent second and third visual areas serve as its association areas.

vis·u·al cor·tex

the region of the cerebral cortex occupying the entire surface of the occipital lobe, and composed of Brodmann areas 17-19. Brodmann area 17 (which is also called striate cortex or area because the line of Gennari is grossly visible on its surface) is the primary visual cortex, receiving the visual radiation from the lateral geniculate body of the thalamus. The surrounding Brodmann areas 18 (parastriate cortex or area) and 19 (peristriate cortex or area) are probably involved in subsequent steps of visual information processing; Brodmann area 18 is referred to as the secondary visual cortex.
Synonym(s): visual area

vis·u·al cor·tex

(vizh'ū-ăl kōr'teks)
The region of the cerebral cortex occupying the entire surface of the occipital lobe, and composed of Brodmann areas 17-19. Area 17 (which is also called the striate cortex or area because the line of Gennari is grossly visible on its surface) is the primary visual cortex, receiving the visual radiation from the lateral geniculate body of the thalamus. The surrounding Brodmann areas 18 (parastriate cortex or area) and 19 (peristriate cortex or area) are probably involved in subsequent steps of visual information processing; area 18 is referred to as the secondary visual cortex.
Synonym(s): visual area.

visual cortex

the thin outer layer of grey matter in the occipital region of the CEREBRUM that is concerned with the interpretation of information from the eyes.
References in periodicals archive ?
Sin embargo, se ha observado, que la enucleacion monocular en ratas y hamsters produce la aparicion de una banda callosa en el area 17 de la corteza ipsilateral al ojo remanente, en una zona que normalmente carece de conexiones callosas en el adulto (Olavarria et al., 1987; O'Brien & Olavarria, 1995).
Es por lo anterior que, la finalidad de este trabajo fue la de estudiar la corteza visual primaria (area 17), de Abrothrix olivaceus (Laucha olivacea), el cual presenta un periodo de actividad continuo en la zona central del pais, versus Phyllotis darwini (Lauchon orejudo de Darwin), que presenta un periodo de actividad nocturno en la misma zona; ambos pertenecientes al Orden Rodentia, Suborden Myomorpha, Familia Muridae y Subfamilia Sigmodontinae (Munoz-Pedreros, 2000); con el proposito de evidenciar eventuales variaciones en la densidad neuronal cortical, que pueden explicar la distinta actividad conductual.
Se seleccionaron los cortes correspondientes al area dorso-medial del area 17 y, dentro de estos, las capas IV y V, tomando como referencia un mapa estereotaxico de la citoarquitectura de la corteza cerebral presente en roedor, descrito por Caviness (1975).
En el raton, el area 17 o area visual primaria, presenta las siguientes caracteristicas: la capa I es bastante delgada y claramente identificable; contiene poca cantidad de celulas.
Por otro lado, se ha demostrado que la enucleacion monocular en hamsters, altera la normalidad de las conexiones callosas visuales, produciendo la aparicion de una banda callosa en el area 17 de la corteza ipsilateral al ojo remanente, en una zona que normalmente carece de conexiones callosas en el adulto (O'Brien & Olavarria).
"The electricity is always cut off in the afternoon and at night, and this makes it very difficult for children to rest after they arrive home from school," said Saifuddin, a resident at industrial area 17.
Sharjah Police said that at 2.30am last Wednesday, its Operations Control Room was informed about a vehicle on fire in Industrial Area 17. Police patrols, Anjad and Civil Defence personnel rushed to the scene and put out the fire.
I have two children who are fasting," said a resident of Industrial Area 17.