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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1992-1-30
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pubmed:abstractText |
In Tupaia belangeri and Galago senegalensis, microelectrode recordings immediately after ablation of the representation of the forelimb in the midportion of the first somatosensory area, S-I, revealed that all parts of the second somatosensory area, S-II, remained highly responsive to cutaneous stimuli. In this way, prosimian primates, close relatives of simian primates, and tree shrews differ markedly from monkeys in which S-II is deactivated by comparable ablations, and resemble such mammals as cats and rabbits in which S-II also remains highly responsive following ablations in S-I. Thus, it appears that the generalized mammalian condition is that S-I and S-II are independently activated via parallel thalamocortical pathways. A dependence of S-II on serial connections from the thalamus to the S-I region and then to S-II apparently evolved with the advent of anthropoid primates, and may be present only in monkeys and perhaps other higher primates.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0021-9967
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
8
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pubmed:volume |
311
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
289-99
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:1753020-Animals,
pubmed-meshheading:1753020-Arm,
pubmed-meshheading:1753020-Brain Mapping,
pubmed-meshheading:1753020-Electric Stimulation,
pubmed-meshheading:1753020-Electrophysiology,
pubmed-meshheading:1753020-Galago,
pubmed-meshheading:1753020-Hand,
pubmed-meshheading:1753020-Microelectrodes,
pubmed-meshheading:1753020-Neural Pathways,
pubmed-meshheading:1753020-Skin Physiological Phenomena,
pubmed-meshheading:1753020-Somatosensory Cortex,
pubmed-meshheading:1753020-Species Specificity,
pubmed-meshheading:1753020-Thalamus,
pubmed-meshheading:1753020-Tupaia
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pubmed:year |
1991
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pubmed:articleTitle |
Parallel thalamic activation of the first and second somatosensory areas in prosimian primates and tree shrews.
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pubmed:affiliation |
Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.
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