Correlation between the rate of learning and theta rhythm in wistar rats (2004)
- Authors:
- Autor USP: SILVA, MARIA TERESA DE ARAUJO - IP
- Unidade: IP
- Assunto: PSICOLOGIA EXPERIMENTAL
- Language: Inglês
- Abstract: Theta rhythm (jung and Kornhuber 1938. Green & Arduni 1954; Vanderwolf 1969; Timo-laria et al, 1970; Valle 1992; Staubi & Scafidi 1999; Glassman 1999; Kahana et al 2003) is a hippocampal characteristic oscillation typical of alert waking and desynchronized (a.k.a. REM, PS) sleep that ranges from 5.5 to 11 Hz. In this study, adult male rats (n=20) were submitted to an operant conditioning paradigm with four steps (modeling, continous reinforcement variable intervals of reinforcement and discrimination. On the fourth step, rats learned to seek reinforcement only when lights were on. The learning schedule consisted of 15 daily sessionsof one hour. At the end of this training, animals were implanted with electrodes on neocortical areas A10, A3 and A17, hippocanpus CA1, CA2 and CA3, and mygdala nBI. We found that the speed of learning on the fourth operants step was positivetly correlated with the frequency of theta waves during both alert waking and desynchronized sleep (r=0.52; p=0.02). Therefore, the higher the frequency of theta waves, the higher the speed learning. To our knowledge, this is the first demonstration of a direct relationship between the capacity for learning and the speed of theta rhythm
- Imprenta:
- Source:
- Título do periódico: Resumo
- Conference titles: Neuroscience Symposium
-
ABNT
SANTOS, L M; KUBO, R; SILVA, Maria Tereza Araújo; et al. Correlation between the rate of learning and theta rhythm in wistar rats. Anais.. Natal: [s.n.], 2004. -
APA
Santos, L. M., Kubo, R., Silva, M. T. A., Sameshima, K., Valle, A. C., & Timo-laria, C. (2004). Correlation between the rate of learning and theta rhythm in wistar rats. In Resumo. Natal. -
NLM
Santos LM, Kubo R, Silva MTA, Sameshima K, Valle AC, Timo-laria C. Correlation between the rate of learning and theta rhythm in wistar rats. Resumo. 2004 ; -
Vancouver
Santos LM, Kubo R, Silva MTA, Sameshima K, Valle AC, Timo-laria C. Correlation between the rate of learning and theta rhythm in wistar rats. Resumo. 2004 ; - Controle pela consequencia na filogenese do comportamento
- Patterns of marihuana smoking among brazilian students
- Pesquisa sobre drogas: ideias e imagens suscitadas em estudantes universitarios
- Uso de drogas entre universitarios: a experiencia com maconha como fator delimitante
- Interação operante-induzido: efeito do bloqueio da polidipsia e da resposta de pressionar a barra
- Interação operante-induzido: efeito do bloqueio da polidipsia induzida e da resposta de pressão a barra
- Perfil antipsicótico da risperidona no modelo de inibição latente
- Jogo patológico: uma revisão da literatura
- Avaliação do efeito da fluoxetina crônica sobre a motivação e o desempenho motor, através da equação da igualação
- Acompanhamento do padrão de jogo, sintomas depressivos e sintomas ansiosos em jogadores patológicos sob tratamento
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas