Use este identificador para citar ou linkar para este item:
https://repositorio.ufrn.br/handle/123456789/23282
Registro completo de metadados
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Robson Scheffer-Teixeira | - |
dc.contributor.author | Hindiael Belchior | - |
dc.contributor.author | Fábio V. Caixeta | - |
dc.contributor.author | Bryan C. Souza | - |
dc.contributor.author | Ribeiro, Sidarta Tollendal Gomes | - |
dc.contributor.author | Tort, Adriano Bretanha Lopes | - |
dc.date.accessioned | 2017-05-31T14:45:36Z | - |
dc.date.available | 2017-05-31T14:45:36Z | - |
dc.date.issued | 2012-10 | - |
dc.identifier.issn | 1047-3211 | - |
dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/23282 | - |
dc.language | eng | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.subject | amplitude modulation | pt_BR |
dc.subject | cross-frequency coupling | pt_BR |
dc.subject | gamma | pt_BR |
dc.subject | hippocampal oscillations | pt_BR |
dc.subject | local field potential | pt_BR |
dc.title | Theta Phase Modulates Multiple Layer-Specific Oscillations in the CA1 Region | pt_BR |
dc.type | article | pt_BR |
dc.description.resumo | It was recently proposed that fast gamma oscillations (60--150 Hz) convey spatial information from the medial entorhinal cortex (EC) to the CA1 region of the hippocampus. However, here we describe 2 functionally distinct oscillations within this frequency range, both coupled to the theta rhythm during active exploration and rapid eye movement sleep: an oscillation with peak activity at ~80 Hz and a faster oscillation centered at ~140 Hz. The 2 oscillations are differentially modulated by the phase of theta depending on the CA1 layer; theta-80 Hz coupling is strongest at stratum lacunosum-- moleculare, while theta-140 Hz coupling is strongest at stratum oriens--alveus. This laminar profile suggests that the ~80 Hz oscillation originates from EC inputs to deeper CA1 layers, while the ~140 Hz oscillation reflects CA1 activity in superficial layers. We further show that the ~140 Hz oscillation differs from sharp wave--associated ripple oscillations in several key characteristics. Our results demonstrate the existence of novel theta--associated high-frequency oscillations and suggest a redefinition of fast gamma oscillations. | pt_BR |
Aparece nas coleções: | ICe - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Theta Phase Modulates Multiple Layer-Specific Oscillations in the CA1 Region.pdf | Artigo completo | 10,65 MB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.