{"status":"public","quality_controlled":"1","title":"Theta-gamma-modulated synaptic currents in hippocampal granule cells in vivo define a mechanism for network oscillations","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2018-12-11T11:56:35Z","oa_version":"Published Version","oa":1,"scopus_import":1,"publisher":"Elsevier","issue":"1","date_published":"2014-01-08T00:00:00Z","publication_status":"published","abstract":[{"text":"Theta-gamma network oscillations are thought to represent key reference signals for information processing in neuronal ensembles, but the underlying synaptic mechanisms remain unclear. To address this question, we performed whole-cell (WC) patch-clamp recordings from mature hippocampal granule cells (GCs) in vivo in the dentate gyrus of anesthetized and awake rats. GCs in vivo fired action potentials at low frequency, consistent with sparse coding in the dentate gyrus. GCs were exposed to barrages of fast AMPAR-mediated excitatory postsynaptic currents (EPSCs), primarily relayed from the entorhinal cortex, and inhibitory postsynaptic currents (IPSCs), presumably generated by local interneurons. EPSCs exhibited coherence with the field potential predominantly in the theta frequency band, whereas IPSCs showed coherence primarily in the gamma range. Action potentials in GCs were phase locked to network oscillations. Thus, theta-gamma-modulated synaptic currents may provide a framework for sparse temporal coding of information in the dentate gyrus.","lang":"eng"}],"department":[{"_id":"PeJo"}],"day":"08","type":"journal_article","file":[{"access_level":"open_access","creator":"system","file_name":"IST-2016-422-v1+1_1-s2.0-S0896627313009227-main.pdf","content_type":"application/pdf","checksum":"438547cfcd9045a22f065f2019f07849","relation":"main_file","file_size":4373072,"date_created":"2018-12-12T10:09:48Z","file_id":"4773","date_updated":"2020-07-14T12:45:35Z"}],"date_updated":"2021-01-12T06:56:19Z","month":"01","file_date_updated":"2020-07-14T12:45:35Z","project":[{"_id":"25C0F108-B435-11E9-9278-68D0E5697425","name":"Nanophysiology of fast-spiking, parvalbumin-expressing GABAergic interneurons","grant_number":"268548","call_identifier":"FP7"},{"call_identifier":"FWF","grant_number":"P24909-B24","name":"Mechanisms of transmitter release at GABAergic synapses","_id":"25C26B1E-B435-11E9-9278-68D0E5697425"}],"ddc":["570"],"publist_id":"4692","volume":81,"intvolume":"        81","year":"2014","citation":{"mla":"Pernia-Andrade, Alejandro, and Peter M. Jonas. “Theta-Gamma-Modulated Synaptic Currents in Hippocampal Granule Cells in Vivo Define a Mechanism for Network Oscillations.” <i>Neuron</i>, vol. 81, no. 1, Elsevier, 2014, pp. 140–52, doi:<a href=\"https://doi.org/10.1016/j.neuron.2013.09.046\">10.1016/j.neuron.2013.09.046</a>.","ieee":"A. Pernia-Andrade and P. M. Jonas, “Theta-gamma-modulated synaptic currents in hippocampal granule cells in vivo define a mechanism for network oscillations,” <i>Neuron</i>, vol. 81, no. 1. Elsevier, pp. 140–152, 2014.","ama":"Pernia-Andrade A, Jonas PM. Theta-gamma-modulated synaptic currents in hippocampal granule cells in vivo define a mechanism for network oscillations. <i>Neuron</i>. 2014;81(1):140-152. doi:<a href=\"https://doi.org/10.1016/j.neuron.2013.09.046\">10.1016/j.neuron.2013.09.046</a>","apa":"Pernia-Andrade, A., &#38; Jonas, P. M. (2014). Theta-gamma-modulated synaptic currents in hippocampal granule cells in vivo define a mechanism for network oscillations. <i>Neuron</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.neuron.2013.09.046\">https://doi.org/10.1016/j.neuron.2013.09.046</a>","ista":"Pernia-Andrade A, Jonas PM. 2014. Theta-gamma-modulated synaptic currents in hippocampal granule cells in vivo define a mechanism for network oscillations. Neuron. 81(1), 140–152.","chicago":"Pernia-Andrade, Alejandro, and Peter M Jonas. “Theta-Gamma-Modulated Synaptic Currents in Hippocampal Granule Cells in Vivo Define a Mechanism for Network Oscillations.” <i>Neuron</i>. Elsevier, 2014. <a href=\"https://doi.org/10.1016/j.neuron.2013.09.046\">https://doi.org/10.1016/j.neuron.2013.09.046</a>.","short":"A. Pernia-Andrade, P.M. Jonas, Neuron 81 (2014) 140–152."},"ec_funded":1,"_id":"2254","pubrep_id":"422","language":[{"iso":"eng"}],"has_accepted_license":"1","author":[{"last_name":"Pernia-Andrade","first_name":"Alejandro","id":"36963E98-F248-11E8-B48F-1D18A9856A87","full_name":"Pernia-Andrade, Alejandro"},{"orcid":"0000-0001-5001-4804","full_name":"Jonas, Peter M","id":"353C1B58-F248-11E8-B48F-1D18A9856A87","first_name":"Peter M","last_name":"Jonas"}],"publication":"Neuron","doi":"10.1016/j.neuron.2013.09.046","page":"140 - 152","publication_identifier":{"issn":["08966273"]}}