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Topic: Pulvinar


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  Pulvinar   (Site not responding. Last check: 2007-11-04)
The pulvinar is the caudal-most nucleus of the thalamus that is conventionally divided into oral, inferior, lateral, and medial subnuclei.
The lateral and inferior pulvinar have widespread connections with visual cortical association areas.
The medial pulvinar has widespread connections with cingulate, posterior parietal, and prefrontal cortical areas.
www.encyclopedia-1.com /p/pu/pulvinar.html   (91 words)

  
 NEUROPHYSIOLOGY AND MENTAL FUNCTION   (Site not responding. Last check: 2007-11-04)
The pulvinar is the largest nucleus in the thalamus, occupying two-fifths of the thalamic volume.
The pulvinar plays a crucial role in attention, by contributing to the activation of neurons for the object which is at the center of visual attention, and by contributing to the deactivation of other neurons, especially those corresponding to the visual field of the detractor letters.
Although the pulvinar might seem to be controlling attention, it is not much more in control than a light-switch is in control of whether a light comes on.
www.benbest.com /science/anatmind/anatmd8.html   (5851 words)

  
 Tramadol, buy tramadol, antibiotics, Weight Loss drugs, weight loss herbs, weight loss herbal formula, weight loss, ...   (Site not responding. Last check: 2007-11-04)
Thus, a new degree of cooperation between neurology and psychiatry is likely to result, especially for the treatment of patients with illnesses such as autism, mental retardation, cognitive disorders associated with Alzheimer and Parkinson disease that overlap between the 2 disciplines.
The MDN and pulvinar were rendered visible by means of a Sobel intensity-gradient filter.
Pulvinar volume was smaller in schizophrenic (1.22 +/- 0.24 cm(3)) and SPD (1.20 +/- 0.23 cm(3)) patients than controls (1.37 +/- 0.25 cm(3)).
auramon.com /ref-schizophrenia/schizophrenia-research-abs4.484.html   (1448 words)

  
 notions sur le pulvinar   (Site not responding. Last check: 2007-11-04)
A few retinal ganglion cells project directly to the lateral part of the pulvinar which is considered as the retino-recipient zone of the complex.
The lateral edge of the pulvinar is innervated by W cells, particularly of the e type.
Finally, pulvinar neurons have concentric receptive fields and show properties similar to those of W retinal cells.
www.mapageweb.umontreal.ca /casanovc/pulvin1_en.htm   (664 words)

  
 NFI søk: litteratur: Biochemical characterization of neurotransmitter mechanisms in Area 17 efferents to Area ...   (Site not responding. Last check: 2007-11-04)
NFI søk: litteratur: Biochemical characterization of neurotransmitter mechanisms in Area 17 efferents to Area 18, lateral geniculate body, pulvinar, and superior colliculus in the cat.
Biochemical characterization of neurotransmitter mechanisms in Area 17 efferents to Area 18, lateral geniculate body, pulvinar, and superior colliculus in the cat.
V.M. Fosse, Paul Heggelund, I. Iversen, Frode Fonnum: Biochemical characterization of neurotransmitter mechanisms in Area 17 efferents to Area 18, lateral geniculate body, pulvinar, and superior colliculus in the cat.
dbh.nsd.uib.no /nfi/litteratur/?key=315752   (122 words)

  
 [No title]   (Site not responding. Last check: 2007-11-04)
The pulvinar, moving further, is located in the back of the thalamus; it projects in each hemisphere to wide areas of temporal and parietal cortex, as well as to portions of frontal cortex.
Consistent with this, researchers state that stimulation of the left pulvinar "produced dysphasia and disrupted verbal memory."(32) One person reported that "during a word naming task, [stimulation of the left pulvinar] led to a failure in object naming and a striking reduction in short term recall."(21)
The pulvinar connects with the amygdala:(33) this suggests that processing in the pulvinar would affect the emotions generated by the amygdala.
209.87.142.42 /y/a3/b22.htm   (331 words)

  
 Arch Neurol -- The Pulvinar Sign in Variant Creutzfeldt-Jakob Disease, March 2004, Summers et al. 61 (3): 446
Arch Neurol -- The Pulvinar Sign in Variant Creutzfeldt-Jakob Disease, March 2004, Summers et al.
Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.
Pulvinar hyperintensity was described as a characteristic feature
archneur.ama-assn.org /cgi/content/extract/61/3/446   (150 words)

  
 Pulvinar discography
Un museo immaginario dove l'oro ci cade addosso e la bellezza abbaglia, ci sono mani di seta che ci fanno girare, possiamo vedere le molte maschere che ci danno e da una vetrata guardare con sguardo sarcastico l'impero che dall'esterno non può attaccarci...
"Edipo" ci riporta all'ambientazione classica che caratterizza altre produzioni dei Pulvinar, "Distanze" ci fa definitivamente cadere nel vortice.
E' la canzone più di atmosfera "dark" della produzione dei Pulvinar.
xoomer.virgilio.it /lorenzer79/pulvinar/albumsengl.htm   (1043 words)

  
 T1 Hyperintensity in the Pulvinar: Key Imaging Feature for Diagnosis of Fabry Disease -- Takanashi et al. 24 (5): 916 ...
lateral pulvinar was recognized in at least seven patients,
A, Axial T1-weighted spin-echo image at the level of basal ganglia shows hyperintense lesions in the bilateral peripheral globus pallidus, lateral pulvinar (arrowhead), and medial occipital cortex.
T1 shortening in the pulvinar was recognized in all seven patients
www.ajnr.org /cgi/content/full/24/5/916   (3268 words)

  
 PULVINAR   (Site not responding. Last check: 2007-11-04)
"PULVINAR" is a common misspelling or typo for: culinary, pluvial, purloiner.
Large mass of nuclei forming the most caudal portion of the thalamus and overhanging the geniculate bodies and the dorsolateral surface of the midbrain.
Specialty definitions using "PULVINAR": Lateral Thalamic Nuclei ♦ Posterior Thalamic Nuclei ♦ Saliens.
www.websters-online-dictionary.org /Pu/Pulvinar.html   (270 words)

  
 David Enke -- Publications   (Site not responding. Last check: 2007-11-04)
The following will present a brief review highlighting certain structures and interactions involved in the primate visual system, along with a description and initial model based on the pulvinar nucleus, a thalamic structure speculated to be important for attentional processing.
The resulting pulvinar model gives an artificial system the ability to attend to salient, or "pop-out" features within the vision system’s field of view.
A discussion of the architecture’s biological significance, including its practical use for detecting uncharacteristic features, will also be presented.
web.umr.edu /~enke/publications/pulvinar_attention.html   (109 words)

  
 Untitled Document   (Site not responding. Last check: 2007-11-04)
The pulvinar nucleus integrates visual, auditory, and somatic sensory information.
It has reciprocal connections with the association cortices of the occipital, parietal, and posterior temporal lobes.
Destruction of the dominant pulvinar nucleus can result in sensory dysphagia.
www2.uchc.edu /~cns/CNScases/Anatomy/Thalamus/Pulvinar.htm   (37 words)

  
 El núcleo pulvinar dirige la relación del cerebro con el entorno externo   (Site not responding. Last check: 2007-11-04)
El desconocimiento que aún existe sobre el núcleo pulvinar parece responder a la complejidad de las técnicas de estudio y a que resulta difícil encontrar una buena pregunta para el pulvinar, "porque recibe conexiones de muchas partes del cerebro", ha explicado el doctor Cudeiro.
El pulvinar indica a las distintas zonas de la corteza la relevancia de lo que nos rodea para que podamos interaccionar con el entorno.
Precisamente, la diferencia entre el tamaño del núcleo pulvinar en los humanos y en los animales tiene que ver con que el componente volitivo está muy desarrollado en el hombre y con que el repertorio de interacciones con el entorno es también muy superior.
www.diariomedico.com /neurologia/n100200bis.html   (898 words)

  
 Tramadol, buy tramadol, antibiotics, Weight Loss drugs, weight loss herbs, weight loss herbal formula, weight loss, ...   (Site not responding. Last check: 2007-11-04)
Micro-electrophoretic studies in the cat pulvinar region: effect of acetylcholine.
In the posterior half of the pulvinar of cats anaesthetized with halothane and nitrous oxide, the majority of neurons were fired by ACh released with small electrophoretic currents.
The histochemical reaction to acetylcholinesterase was moderate in the pulvinar.
auramon.com /ref-nicotine/nicotine-research-abs3.142.html   (904 words)

  
 COMPARISON OF POSTERIOR CINGULATE CORTEX PROJECTIONS TO THE PULVINAR AND LATERODORSAL NUCLEI
In the cat, where the pulvinar and LD nuclei are of similar size, the pCG projections were dense in the LD but relatively sparse in the pulvinar.
In the monkey, the pCG contributed dense projections to dorsomedial portions of the vastly enlarged pulvinar nucleus, and relatively sparse projections to the LD nucleus.
Given the proposed functions of RS and RL terminals as "modulatory" and "driver" inputs respectively, these results suggest the pCG is capable of modulating and driving pulvinar and LD activity.
www.ana.sote.hu /zsolt.htm   (298 words)

  
 Visual responses of single neurons in the caudal lateral pulvinar of the macaque monkey -- Benevento and Miller 1 (11): ...
Visual responses of single neurons in the caudal lateral pulvinar of the macaque monkey -- Benevento and Miller 1 (11): 1268 -- Journal of Neuroscience
Visual responses of single neurons in the caudal lateral pulvinar of the macaque monkey
Single unit recordings were made in the portion of the lateral pulvinar
www.jneurosci.org /cgi/content/short/1/11/1268   (344 words)

  
 Il pulvinar   (Site not responding. Last check: 2007-11-04)
Nel macaco il complesso del pulvinar può essere suddiviso in quattro nuclei dall'architettura citologica distinta(Petersen, Robinson and Morris, 1987; Robinson and McClurkin, 1989; Robinson and Petersen, 1992): il nucleo inferiore (PI), il nucleo laterale (PL), il nucleo medio (PM) ed il nucleo orale (PO).
Vi sono proiezioni collicolari verso tutti e quattro i nuclei del pulvinar: lo strato grigio superficiale proietta massicciamente verso i nuclei inferiore e laterale, gli strati profondi proiettano verso i nuclei medio ed orale.
Le connessioni efferenti del pulvinar sono indirizzate quasi esclusivamente verso la corteccia striata, prestriata, temporale parietale e frontale.
www.hyperlabs.net /attenzione/capitolo3/07.html   (457 words)

  
 SYNAPTIC ORGANIZATION OF PULVINAR PROJECTING PORTIONS OF THE CAT THALAMIC RETICULAR NUCLEUS
We recently examined the synaptic circuitry of the cat perigeniculate nucleus (PGN), which projects specifically to the dorsal lateral geniculate nucleus (dLGN), and were surprised to find very few GABAergic contacts on PGN cells.
To determine whether this reflects the general organization of the visual sector of the TRN, or is a unique feature of the PGN, we have begun to examine the synaptic organization of portions of the TRN that project to the cat pulvinar nucleus.
These results suggest that connections between GABAergic cells are more common in the main body of the TRN than in the PGN, and thalamocortical collateral projections may be more prevalent in the PGN, or may display distinct morphologies in the PGN and TRN.
www.ana.sote.hu /jeff.htm   (323 words)

  
 The subcortical anatomy of human spatial neglect: putamen, caudate nucleus and pulvinar -- Karnath et al. 125 (2): 350 ...
The subcortical anatomy of human spatial neglect: putamen, caudate nucleus and pulvinar -- Karnath et al.
The subcortical anatomy of human spatial neglect: putamen, caudate nucleus and pulvinar
Analysis revealed that the putamen, the pulvinar and,
brain.oupjournals.org /cgi/content/abstract/125/2/350   (654 words)

  
 Low Medial and Lateral Right Pulvinar Volumes in Schizophrenia: A Postmortem Study -- Highley et al. 160 (6): 1177 -- ...
the pulvinar thalamic nucleus in schizophrenia patients were
the medial pulvinar was larger on the right.
left pulvinar nuclei were smaller in the schizophrenia patients
ajp.psychiatryonline.org /cgi/content/abstract/160/6/1177   (135 words)

  
 bilateral pulvinar sign on T2 MRI scans for nvCJD - General Practice Notebook   (Site not responding. Last check: 2007-11-04)
This study investigated the specificity and sensitivity of pulvinar high signal on T2 MRI brain scans of patients with suspected vCJD.
The information provided herein should not be used for diagnosis or treatment of any medical condition.
Oxbridge Solutions Ltd® is an independent company owned by the authors which does not receive income from any other organisation or individual.
www.gpnotebook.co.uk /cache/1630863436.htm   (122 words)

  
 Functional Imaging of the Human Lateral Geniculate Nucleus and Pulvinar -- Kastner et al., 10.1152/jn.00553.2003 -- ...
Functional Imaging of the Human Lateral Geniculate Nucleus and Pulvinar -- Kastner et al., 10.1152/jn.00553.2003 -- Journal of Neurophysiology
Functional Imaging of the Human Lateral Geniculate Nucleus and Pulvinar
maps such as the lateral geniculate nucleus (LGN) and the pulvinar.
jn.physiology.org /cgi/content/short/00553.2003v1   (360 words)

  
 A subcortical pathway to the right amygdala mediating "unseen" fear -- Morris et al. 96 (4): 1680 -- Proceedings of the ...
A corrected threshold of P < 0.001 was used for the contrast, which compares the regression slope in the masked CS+ condition with regression slopes in the other three conditions.
The region of covariation in the pulvinar is displayed on transverse and sagittal sections of a canonical structural MRI centred on the maximal voxel in the right pulvinar (x = 18, y =
The main output projection of the superior colliculus is the posterior thalamic pulvinar nucleus (41), which has direct
www.pnas.org /cgi/content/full/96/4/1680   (4325 words)

  
 Human Thalamic Medial Pulvinar Nucleus is not Activated during Paradoxical Sleep -- Magnin et al., ...
Human Thalamic Medial Pulvinar Nucleus is not Activated during Paradoxical Sleep -- Magnin et al., 10.1093/cercor/bhh044 -- Cerebral Cortex
Human Thalamic Medial Pulvinar Nucleus is not Activated during Paradoxical Sleep
in a posterior region of the thalamus, the medial pulvinar nucleus
cercor.oupjournals.org /cgi/content/abstract/bhh044v2   (251 words)

  
 Pulvinar   (Site not responding. Last check: 2007-11-04)
The word "pulvinar" uses 8 letters: A I L N P R U V.
Words within pulvinar not shown as it has more than seven letters.
List all words starting with pulvinar, words containing pulvinar or words ending with pulvinar
www.morewords.com /word/pulvinar   (159 words)

  
 The "Pulvinar" Sign in Variant Creutzfeldt-Jakob Disease -- Molloy et al. 175 (2): 555 -- American Journal of ...
in the pulvinar regions and medial aspects of the thalami on
affecting the pulvinar and medial areas of the thalamus and
Sellar RJ, Will W, Zeidler M. MR imaging of new variant Creutzfeldt-Jakob disease the pulvinar sign.
www.ajronline.org /cgi/content/full/175/2/555   (476 words)

  
 Impaired stereoacuity due to a lesion in the left pulvinar -- Takayama et al. 57 (5): 652 -- Journal of Neurology, ...
Impaired stereoacuity due to a lesion in the left pulvinar -- Takayama et al.
Impaired stereoacuity due to a lesion in the left pulvinar
A right-handed patient with a haematoma in the left pulvinar showed
jnnp.bmjjournals.com /cgi/content/abstract/57/5/652   (122 words)

  
 WOROI: 236 - Pulvinar
Thalamic activation, particularly of the pulvinar, suggests that this nucleus is an important subcortical target of the dorsal stream
Significant rCBF decreases were observed in the substantia nigra/nucleus ruber and in the anterior pulvinar nucleus
Subcortical activations were found in cerebellum (particularly the vermis) and in the thalamus with the focus in a region comprising the lateral geniculate nucleus, the pulvinar, and adjacent parts of the reticular nucleus
hendrix.ei.dtu.dk /services/jerne/brede/WOROI_236.html   (125 words)

  
 Deficits in spatial coding and feature binding following damage to spatiotopic maps in the human pulvinar - Nature ...   (Site not responding. Last check: 2007-11-04)
We report a patient with unilateral damage to the rostral part of the pulvinar who was impaired in localizing stimuli in the inferior visual field contralateral to the lesion and who made errors in the binding of shape and color in that quadrant.
The findings demonstrate the importance of the pulvinar in spatial coding and provide support for the function of the thalamus in binding of features
They also provide evidence for a homology between the visual field maps of the inferior and lateral subdivisions of the pulvinar in monkeys and in humans, such that the inferior visual field is represented in the rostral part of the nucleus.
www.nature.com /neurolink/v5/n2/abs/nn794.html   (212 words)

  
 Arch Gen Psychiatry -- Abstract: Magnetic Resonance Imaging of the Thalamic Mediodorsal Nucleus and Pulvinar in ...
Arch Gen Psychiatry -- Abstract: Magnetic Resonance Imaging of the Thalamic Mediodorsal Nucleus and Pulvinar in Schizophrenia and Schizotypal Personality Disorder, February 2001, Byne et al.
were r = 0.78 for MDN and r = 0.83 for pulvinar.
Conclusions  Measurement of MDN and pulvinar in magnetic
archpsyc.ama-assn.org /cgi/content/abstract/58/2/133   (514 words)

  
 The "Pulvinar" Sign in Variant Creutzfeldt-Jakob Disease -- Molloy et al. 175 (2): 555 -- American Journal of ...
The "Pulvinar" Sign in Variant Creutzfeldt-Jakob Disease -- Molloy et al.
Articles by Molloy, S. Articles by Farrell, M. The "Pulvinar" Sign in Variant Creutzfeldt-Jakob Disease
Axial fluid-attenuated inversion recovery MR image shows high signal intensity bilaterally in pulvinar and medial aspects of thalamus (arrows).
www.ajronline.org /cgi/content/figsonly/175/2/555   (82 words)

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