Instituto do Cérebro
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Article Waveform-based classification of dentate spikes(Springer Science and Business Media LLC, 2024-02) Santiago, Rodrigo Marques de Melo; Santos, Vítor Lopes dos; Jones, Emily A. Aery; Huang, Yadong; Dupret, David; Tort, Adriano Bretanha LopesArticle Theta and gamma oscillations in the rat hippocampus support the discrimination of object displacement in a recognition memory task(Frontiers Media SA, 2022-12) Neves, Lívia Rodrigues; Soares, Bruno Lobão; Araujo, Ana Paula de Castro; Furtunato, Alan Michel Bezerra; Paiva, Izabela Lima; Souza, Nicholy da Costa; Morais, Anne Kelly Costa; Nascimento, George Carlos do; Gavioli, Elaine Cristina; Tort, Adriano Bretanha Lopes; Barbosa, Flávio Freitas; Belchior, Hindiael AerafArticle Hippocampal Cb2 receptors: an untold story(2021-10-29) Visvanathar, Robin; Papanikolaou, Maria; Nôga, Diana Aline; Reis, Marina Pádua; Tort, Adriano Bretanha Lopes; Blunder, MartinaArticle On information metrics for spatial coding(2018-04-01) Souza, Bryan C.; Pavão, Rodrigo; Belchior, Hindiael; Tort, Adriano Bretanha LopesArticle Nasal respiration entrains delta-frequency oscillations in the prefrontal cortex and hippocampus of rodents(2018-01) Lockmann, Andre L. V. ; Tort, Adriano Bretanha LopesArticle Theta-phase modulates different high-frequency oscillations in the CA1 region of the hippocampus during both waking and rapid-eye movement sleep.(2010-09) Teixeira, Robson Scheffer; Souza, Bryan C.; Belchior, Hindiael; Ribeiro, Sidarta Tollendal Gomes; Tort, Adriano Bretanha LopesArticle Slow Oscillations in the Mouse Hippocampus Entrained by Nasal Respiration(2014-04-23) Yanovsky, Yevgenij; Ciatipis, Mareva; Draguhn, Andreas; Tort, Adriano Bretanha Lopes; Brankacˇk, JurijDifferent types of network oscillations occur in different behavioral, cognitive, or vigilance states. The rodent hippocampus expresses prominentoscillations atfrequencies between 4 and 12Hz,which are superimposed by phase-coupledoscillations (30 –100Hz).These patterns entrain multineuronal activity over large distances and have been implicated in sensory information processing and memory formation. Here we report a new type of oscillation at near- frequencies (2– 4 Hz) in the hippocampus of urethane-anesthetized mice. The rhythm is highly coherent with nasal respiration and with rhythmic field potentials in the olfactory bulb: hence, we called it hippocampal respiration-induced oscillations. Despite the similarity in frequency range, several features distinguish this pattern from locally generatedoscillations: hippocampal respiration-induced oscillations have a unique laminar amplitude profile, are resistant to atropine, couple differentlytooscillations, and are abolished when nasal airflow is bypassed bytracheotomy. Hippocampal neurons are entrained by both the respiration-induced rhythm and concurrent oscillations, suggesting a direct interaction between endogenous activity in the hippocampus and nasal respiratory inputs. Our results demonstrate that nasal respiration strongly modulates hippocampal network activity in mice, providing a long-range synchronizing signal between olfactory and hippocampal networks.