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Architectonic mapping of somatosensory areas involved in skilled forelimb movements and tool use.
Mayer, Andrei; Nascimento-Silva, Márcio L; Keher, Natalia B; Bittencourt-Navarrete, Ruben Ernesto; Gattass, Ricardo; Franca, João G.
Afiliação
  • Mayer A; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • Nascimento-Silva ML; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • Keher NB; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • Bittencourt-Navarrete RE; Department of Physiology, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, Brazil.
  • Gattass R; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
  • Franca JG; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
J Comp Neurol ; 524(7): 1399-423, 2016 May 01.
Article em En | MEDLINE | ID: mdl-26477782
Cebus monkeys stand out from other New World monkeys by their ability to perform fine hand movements, and by their spontaneous use of tools in the wild. Those behaviors rely on the integration of somatosensory information, which occurs in different areas of the parietal cortex. Although a few studies have examined and parceled the somatosensory areas of the cebus monkey, mainly using electrophysiological criteria, very little is known about its anatomical organization. In this study we used SMI-32 immunohistochemistry, myelin, and Nissl stains to characterize the architecture of the parietal cortical areas of cebus monkeys. Seven cortical areas were identified between the precentral gyrus and the anterior bank of the intraparietal sulcus. Except for areas 3a and 3b, distinction between different somatosensory areas was more evident in myelin-stained sections and SMI-32 immunohistochemistry than in Nissl stain, especially for area 2 and subdivisions of area 5. Our results show that cebus monkeys have a relatively complex somatosensory cortex, similar to that of macaques and humans. This suggests that, during primate evolution, the emergence of new somatosensory areas underpinned complex manual behaviors in most Old World simians and in the New World cebus monkey. J. Comp. Neurol. 524:1399-1423, 2016. © 2015 Wiley Periodicals, Inc.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Córtex Somatossensorial / Mapeamento Encefálico / Comportamento de Utilização de Ferramentas / Membro Anterior / Destreza Motora / Movimento Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Revista: J Comp Neurol Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Córtex Somatossensorial / Mapeamento Encefálico / Comportamento de Utilização de Ferramentas / Membro Anterior / Destreza Motora / Movimento Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Revista: J Comp Neurol Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos