(redirected from neocortical)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to neocortical: neocortical death, Neocortical column


 [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.


(ī'sō-kōr'teks), [TA]
O. and C. Vogt term for the larger part of the mammalian cerebral cortex, distinguished from the allocortex by being composed of a larger number of nerve cells arranged in six layers.
See also: cerebral cortex.


/neo·cor·tex/ (-kor´teks) the newer, six-layered portion of the cerebral cortex, showing the most highly evolved stratification and organization. Cf. archicortex and paleocortex.
Enlarge picture
Coronal section through the neocortex, showing the six layers.


n. pl. neocor·tices (-tĭ-sēz′) or neocor·texes
The dorsal region of the cerebral cortex, especially large in primates, thought to have evolved more recently than other parts of the brain. Also called neopallium.

ne′o·cor′ti·cal (-tĭ-kəl) adj.


Etymology: Gk, neos, new; L, cortex, bark
the most recently evolved part of the brain. In humans the neocortex includes all of the cerebral cortex except for the hippocampal and piriform areas.


(nē'ō-kōr'teks) [TA]
The newest part of the cerebral cortex, involved in higher functions such as sensory perception, generation of motor commands, spatial reasoning, conscious thought, and in humans, language; consists of gray matter surrounding the deeper white matter of the cerebrum; accounts for approximately 23% of the neurons in brains of human males and 19% of the neurons in human females.
Synonym(s): neopallium.
[G. neos, new, + L. cortex, bark]

neocortex (nēˈ·ō·kor′·teks),

n the outer surface of the cerebrum that is responsible for higher functions reason, memory, cognition in human beings.


References in periodicals archive ?
FMUSP-rats present iterative spike-wave discharges in neocortical areas, as has been reported in other rodent experimental models of absence-like seizures (VERGNES et al.
Target and temporal pattern selection at neocortical synapses.
PET scanning is useful in cases of neocortical epilepsy, where interictal hypometabolism corresponds to areas of concern.
Different threshold levels of postsynaptic [Ca2 + ]i have to be reached to induce LTP and LTD in neocortical pyramidal cells.
The very activity of hearing and interpreting sound in terms of sense is a neocortical activity; sound arouses autonomous subcortical responses, but the neocortex jumps to read them as related to the sense the neocortex itself produces and understands.
18]F]T807 binding in the entorhinal cortex in cognitively typical older adults, and MCI and Alzheimer's patients showed significantly greater binding in the neocortical regions, particularly in the temporal and occipital lobes.
Human neocortical myelination is also developmental protracted.
1987, Neocortical cell counts in normal human adult aging.
Migraine attacks, like epileptic seizures, may be triggered by excessive neocortical cellular excitability; in migraine, however, the hyperexcitability is believed to transition to cortical spreading depression rather than to the hypersynchronous activity that characterizes seizures.
On the other hand, the 1996 Consensus Guidelines authored by the Consortium on DLB identified distinct Lewy body disease patterns: brainstem-predominant, limbic/ transitional, and neocortical (McKeith, 2006).
Neocortical volume decrease in relapsing-remitting MS patients with mild cognitive impairment.
Ahora al analizar las cifras de validacion estadistica para determinar el valor pronostico ECoG se debe tener en cuenta que el analisis corticografico de epilepsia del lobulo temporal con y sin displasia cortical neocortical representan espectros totalmente distintos, pero con algunos elementos comunes del punto de vista clinico, electrofisiologico de superficie e incluso de imagen, por lo que al momento de evaluar la importancia de la ECoG intra-operatoria vale preguntarnos sobre cual es nuestro diagnostico mas ad-hoc y si la actividad registrada en la superficie cerebral temporal en pacientes con displasia mas esclerosis mesial no tendra un impacto mayor en la toma de decisiones neuroquirurgica in situ.