pulvinar


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Related to pulvinar: pulvinar sign

pulvinar

 [pul-vi´nar]
the prominent, cushionlike mass of nuclei that forms the medial portion of the posterior extremity of the thalamus, which partly overhangs the rostral colliculus and its brachium and is separated inferiorly from the geniculate body by the brachium of the rostral colliculus; it receives fibers from other thalamic nuclei and gives off widespread cortical projections.

pul·vi·nar

(pŭl-vī'năr),
The expanded caudal extremity of the thalamus that forms a cushionlike prominence overlying the geniculate bodies. This structure, collectively called nuclei pulvinares [TA] (pulvinar nuclei [TA]), is a composite cell group made up of anterior, inferior, lateral, and medial nuclei.
[L. a couch made from cushions, fr. pulvinus, cushion]

pul·vi·nar

(pŭl'vī-năr) [TA]
The expanded posterior extremity of the thalamus that forms a cushionlike prominence overlying the geniculate bodies.
[L. a couch made from cushions, fr. pulvinus, cushion]

pulvinar 

The prominence of the posterior portion of the thalamus overlapping the superior colliculus. It receives projections from the auditory, somatosensory and visual cortex regions. It is involved in visual attention, suppression of irrelevant stimuli and utilizing information to initiate eye movements.
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References in periodicals archive ?
We note that these functional circuits included several subregions in the thalamus, such as the ventral posterior lateral nucleus, the pulvinar, and the medial dorsal nucleus.
Thalamo-Sensorimotor Functional Connectivity Correlates with World Ranking of Olympic, Elite, and High Performance Athletes
The pulvinar sign has diagnostic value for vCJD, but studies have also reported it in sCJD cases where it was accompanied by signal changes in other regions of the brain (13,14).
Sporadic Creutzfeldt-Jacob disease: an 8-year experience from a single center in Turkey/Sporadik Creutzfeldt-Jacob Hastaligi: Turkiye'den bir merkezin sekiz yillik tecrubesi
The magno-cellular dorsal stream eventually ends in the parietal cortex later than the superior colliculus/ pulvinar pathway, to answer the question "where is it?" helping the individual to identify where an object is in space (ie, integration of all the body's attention and range-finding systems, aligning the eyes, head and body with convergence and accommodation, to accurately fixate the object of regard);this can be considered to be a reflex arc pathway which Skeffington labelled as the "centring system" (Figure 3).
Neurology of vision: a new model? Ageing vision part 1 course code: C-15420 O
Diagnosing variant Creurzfeldt-Jakob disease with the pulvinar sign: MR imaging findings in 86 neuropathologically confirmed cases.
Bovine spongiform encephalopathy in a dairy cow--Washington state, 2003
A prominent, symmet rical pulvinar high signal on T2-weighted and/or proton-density-weighted MRI has been reported in most vCJD patients (9).
Probable variant Creutzfeldt-Jakob disease in a U.S. resident -- Florida, 2002
The temporal thalamic cluster (dark blue) included mainly the MGN but also the pulvinar, which projects to occipital, parietal, and temporal areas.
Thalamocortical Connectivity and Microstructural Changes in Congenital and Late Blindness
One patient had florid plaques and a pulvinar sign on magnetic resonance imaging, mimicking vCJD (5).
Iatrogenic creutzfeldt-jakob disease, final assessment
An electroencephalogram evaluation showed no abnormalities, but a brain magnetic resonance imaging (MRI) study showed the characteristic signal abnormalities in the pulvinar and metathalamic regions suggestive of vCJD.
Variant Creutzfeldt-Jakob disease death, United States
For example, the auditory signals can first feed forward to the A1 for initial processing, and then feed back to the MGN and multimodal thalamic nuclei (e.g., the pulvinar) [177], and finally project to the V1 (cortico-thalamooccipital pathway).
Neural pathways conveying novisual information to the visual cortex
The most seriously affected thalamic nuclei are the anteroventral, mediodorsal nuclei, and pulvinar.[34],[35]
Expert Consensus on Clinical Diagnostic Criteria for Fatal Familial Insomnia
Electrical stimulation of the face patches can activate the amygdala, claustrum, and pulvinar, (31) suggesting that these subcortical structures may also play a role in face processing.
Development of social systems neuroscience using macaques
Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
WC BRAZIL 1950 -- An Overview

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