neostriatum


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Related to neostriatum: paleostriatum

neostriatum

 [ne″o-stri-a´tum]
the more recently developed part of the corpus striatum, comprising the caudate nucleus and the putamen.

stri·a·tum

(strī-ā'tŭm), [TA]
Collective name for the caudate nucleus and putamen that together with the globus pallidus or pallidum form the striate body.
Synonym(s): neostriatum
[L. neut. of striatus, furrowed]

neostriatum

[-strī·ā′təm]
the most recently evolved part of the corpus striatum, consisting of the caudate nucleus and putamen. The neostriatum receives input from the entire cerebral cortex and other brain areas and provides output to the basal nuclei.

ne·o·stri·a·tum

(nē'ō-strī-ā'tŭm)
The caudate nucleus and putamen considered as one and distinguished from the globus pallidus (paleostriatum).

neostriatum

the more recently developed part of the corpus striatum, comprising the caudate nucleus and the putamen.
References in periodicals archive ?
Selective deficits in reversal learning after neostriatum caudolaterale lesions in pigeons: possible behavioral equivalencies to the mammalian prefrontal system.
Afferent and efferent connections of the caudolateral neostriatum in the pigeon (Columba livia): a retro- and anterograde pathway tracing study.
Thalamic projections to the paleostriatum and neostriatum in the pigeon (Columba livia).
The caudate nucleus, although considered to be part of the neostriatum, may not, as previously thought, be involved in motor pathways, perhaps serving some other function.
The neostriatum also receives input from both the substantia nigra and subthalamic nucleus and the thalamus.
The posterior portions, the pars compacta, form part of a feedback loop from the neostriatum and back again (Fig 3).
Afferent pathways to this area are from the neostriatum and use the neurotransmitter gamma-aminobutyric acid (GABA).
This includes a discussion of the patterns of cellular connectivity of different functional regions of the cerebral cortex, cerebellum and neostriatum and models for fast and slow neuronal circuits within the brain.
Both pathways start with the stimulus from cortex to the neostriatum (caudate and putamen - Str) and unite again at the output nucleus of the basal ganglia, GPi/SNr.
Dopamine (Fig 4) is a catecholamine neurotransmitter found in concentrations in the pathway existing from the substantia nigra to the corpus striatum (or neostriatum, the nigrostriatal pathway).
Specifically, the caudal nucleus of the ventral hyperstriatum (HVc) increases its number of neurons by 50 percent during the 70-day maturing period; the magnocellular nucleus of the anterior neostriatum (MAN) loses half of its cells.