--- _id: '8740' abstract: - lang: eng text: In vitro work revealed that excitatory synaptic inputs to hippocampal inhibitory interneurons could undergo Hebbian, associative, or non-associative plasticity. Both behavioral and learning-dependent reorganization of these connections has also been demonstrated by measuring spike transmission probabilities in pyramidal cell-interneuron spike cross-correlations that indicate monosynaptic connections. Here we investigated the activity-dependent modification of these connections during exploratory behavior in rats by optogenetically inhibiting pyramidal cell and interneuron subpopulations. Light application and associated firing alteration of pyramidal and interneuron populations led to lasting changes in pyramidal-interneuron connection weights as indicated by spike transmission changes. Spike transmission alterations were predicted by the light-mediated changes in the number of pre- and postsynaptic spike pairing events and by firing rate changes of interneurons but not pyramidal cells. This work demonstrates the presence of activity-dependent associative and non-associative reorganization of pyramidal-interneuron connections triggered by the optogenetic modification of the firing rate and spike synchrony of cells. acknowledgement: We thank Michele Nardin and Federico Stella for comments on an earlier version of the manuscript. K Deisseroth for providing the pAAV-CaMKIIα::eNpHR3.0-YFP plasmid through Addgene. E Boyden for providing AAV2/1.CaMKII::ArchT.GFP.WPRE.SV40 plasmid through Penn Vector Core. This work was supported by the Austrian Science Fund (I02072 and I03713) and a Swiss National Science Foundation grant to PS. The authors declare no conflicts of interest. article_number: '61106' article_processing_charge: No article_type: original author: - first_name: Igor full_name: Gridchyn, Igor id: 4B60654C-F248-11E8-B48F-1D18A9856A87 last_name: Gridchyn orcid: 0000-0002-1807-1929 - first_name: Philipp full_name: Schönenberger, Philipp id: 3B9D816C-F248-11E8-B48F-1D18A9856A87 last_name: Schönenberger - first_name: Joseph full_name: O'Neill, Joseph id: 426376DC-F248-11E8-B48F-1D18A9856A87 last_name: O'Neill - first_name: Jozsef L full_name: Csicsvari, Jozsef L id: 3FA14672-F248-11E8-B48F-1D18A9856A87 last_name: Csicsvari orcid: 0000-0002-5193-4036 citation: ama: Gridchyn I, Schönenberger P, O’Neill J, Csicsvari JL. Optogenetic inhibition-mediated activity-dependent modification of CA1 pyramidal-interneuron connections during behavior. eLife. 2020;9. doi:10.7554/eLife.61106 apa: Gridchyn, I., Schönenberger, P., O’Neill, J., & Csicsvari, J. L. (2020). Optogenetic inhibition-mediated activity-dependent modification of CA1 pyramidal-interneuron connections during behavior. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.61106 chicago: Gridchyn, Igor, Philipp Schönenberger, Joseph O’Neill, and Jozsef L Csicsvari. “Optogenetic Inhibition-Mediated Activity-Dependent Modification of CA1 Pyramidal-Interneuron Connections during Behavior.” ELife. eLife Sciences Publications, 2020. https://doi.org/10.7554/eLife.61106. ieee: I. Gridchyn, P. Schönenberger, J. O’Neill, and J. L. Csicsvari, “Optogenetic inhibition-mediated activity-dependent modification of CA1 pyramidal-interneuron connections during behavior,” eLife, vol. 9. eLife Sciences Publications, 2020. ista: Gridchyn I, Schönenberger P, O’Neill J, Csicsvari JL. 2020. Optogenetic inhibition-mediated activity-dependent modification of CA1 pyramidal-interneuron connections during behavior. eLife. 9, 61106. mla: Gridchyn, Igor, et al. “Optogenetic Inhibition-Mediated Activity-Dependent Modification of CA1 Pyramidal-Interneuron Connections during Behavior.” ELife, vol. 9, 61106, eLife Sciences Publications, 2020, doi:10.7554/eLife.61106. short: I. Gridchyn, P. Schönenberger, J. O’Neill, J.L. Csicsvari, ELife 9 (2020). date_created: 2020-11-08T23:01:25Z date_published: 2020-10-05T00:00:00Z date_updated: 2024-02-21T12:43:40Z day: '05' ddc: - '570' department: - _id: JoCs doi: 10.7554/eLife.61106 external_id: isi: - '000584369000001' file: - access_level: open_access checksum: 6a7b0543c440f4c000a1864e69377d95 content_type: application/pdf creator: dernst date_created: 2020-11-09T09:17:40Z date_updated: 2020-11-09T09:17:40Z file_id: '8749' file_name: 2020_eLife_Gridchyn.pdf file_size: 447669 relation: main_file success: 1 file_date_updated: 2020-11-09T09:17:40Z has_accepted_license: '1' intvolume: ' 9' isi: 1 language: - iso: eng month: '10' oa: 1 oa_version: Published Version project: - _id: 257D4372-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I2072-B27 name: Interneuron plasticity during spatial learning - _id: 2654F984-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I03713 name: Interneuro Plasticity During Spatial Learning publication: eLife publication_identifier: eissn: - 2050084X publication_status: published publisher: eLife Sciences Publications quality_controlled: '1' related_material: record: - id: '8563' relation: research_data status: public scopus_import: '1' status: public title: Optogenetic inhibition-mediated activity-dependent modification of CA1 pyramidal-interneuron connections during behavior tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 9 year: '2020' ... --- _id: '5914' abstract: - lang: eng text: With the advent of optogenetics, it became possible to change the activity of a targeted population of neurons in a temporally controlled manner. To combine the advantages of 60-channel in vivo tetrode recording and laser-based optogenetics, we have developed a closed-loop recording system that allows for the actual electrophysiological signal to be used as a trigger for the laser light mediating the optogenetic intervention. We have optimized the weight, size, and shape of the corresponding implant to make it compatible with the size, force, and movements of a behaving mouse, and we have shown that the system can efficiently block sharp wave ripple (SWR) events using those events themselves as a trigger. To demonstrate the full potential of the optogenetic recording system we present a pilot study addressing the contribution of SWR events to learning in a complex behavioral task. article_number: e0087 article_processing_charge: No author: - first_name: Dámaris K full_name: Rangel Guerrero, Dámaris K id: 4871BCE6-F248-11E8-B48F-1D18A9856A87 last_name: Rangel Guerrero orcid: 0000-0002-8602-4374 - first_name: James G. full_name: Donnett, James G. last_name: Donnett - first_name: Jozsef L full_name: Csicsvari, Jozsef L id: 3FA14672-F248-11E8-B48F-1D18A9856A87 last_name: Csicsvari orcid: 0000-0002-5193-4036 - first_name: Krisztián full_name: Kovács, Krisztián id: 2AB5821E-F248-11E8-B48F-1D18A9856A87 last_name: Kovács orcid: 0000-0001-6251-1007 citation: ama: 'Rangel Guerrero DK, Donnett JG, Csicsvari JL, Kovács K. Tetrode recording from the hippocampus of behaving mice coupled with four-point-irradiation closed-loop optogenetics: A technique to study the contribution of Hippocampal SWR events to learning. eNeuro. 2018;5(4). doi:10.1523/ENEURO.0087-18.2018' apa: 'Rangel Guerrero, D. K., Donnett, J. G., Csicsvari, J. L., & Kovács, K. (2018). Tetrode recording from the hippocampus of behaving mice coupled with four-point-irradiation closed-loop optogenetics: A technique to study the contribution of Hippocampal SWR events to learning. ENeuro. Society of Neuroscience. https://doi.org/10.1523/ENEURO.0087-18.2018' chicago: 'Rangel Guerrero, Dámaris K, James G. Donnett, Jozsef L Csicsvari, and Krisztián Kovács. “Tetrode Recording from the Hippocampus of Behaving Mice Coupled with Four-Point-Irradiation Closed-Loop Optogenetics: A Technique to Study the Contribution of Hippocampal SWR Events to Learning.” ENeuro. Society of Neuroscience, 2018. https://doi.org/10.1523/ENEURO.0087-18.2018.' ieee: 'D. K. Rangel Guerrero, J. G. Donnett, J. L. Csicsvari, and K. Kovács, “Tetrode recording from the hippocampus of behaving mice coupled with four-point-irradiation closed-loop optogenetics: A technique to study the contribution of Hippocampal SWR events to learning,” eNeuro, vol. 5, no. 4. Society of Neuroscience, 2018.' ista: 'Rangel Guerrero DK, Donnett JG, Csicsvari JL, Kovács K. 2018. Tetrode recording from the hippocampus of behaving mice coupled with four-point-irradiation closed-loop optogenetics: A technique to study the contribution of Hippocampal SWR events to learning. eNeuro. 5(4), e0087.' mla: 'Rangel Guerrero, Dámaris K., et al. “Tetrode Recording from the Hippocampus of Behaving Mice Coupled with Four-Point-Irradiation Closed-Loop Optogenetics: A Technique to Study the Contribution of Hippocampal SWR Events to Learning.” ENeuro, vol. 5, no. 4, e0087, Society of Neuroscience, 2018, doi:10.1523/ENEURO.0087-18.2018.' short: D.K. Rangel Guerrero, J.G. Donnett, J.L. Csicsvari, K. Kovács, ENeuro 5 (2018). date_created: 2019-02-03T22:59:16Z date_published: 2018-07-27T00:00:00Z date_updated: 2024-03-25T23:30:06Z day: '27' ddc: - '570' department: - _id: JoCs doi: 10.1523/ENEURO.0087-18.2018 ec_funded: 1 external_id: isi: - '000443994700007' file: - access_level: open_access checksum: f4915d45fc7ad4648b7b7a13fdecca01 content_type: application/pdf creator: dernst date_created: 2019-02-05T12:48:36Z date_updated: 2020-07-14T12:47:13Z file_id: '5921' file_name: 2018_ENeuro_Guerrero.pdf file_size: 3746884 relation: main_file file_date_updated: 2020-07-14T12:47:13Z has_accepted_license: '1' intvolume: ' 5' isi: 1 issue: '4' language: - iso: eng month: '07' oa: 1 oa_version: Published Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 257D4372-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I2072-B27 name: Interneuron plasticity during spatial learning publication: eNeuro publication_status: published publisher: Society of Neuroscience quality_controlled: '1' related_material: record: - id: '6849' relation: dissertation_contains status: public scopus_import: '1' status: public title: 'Tetrode recording from the hippocampus of behaving mice coupled with four-point-irradiation closed-loop optogenetics: A technique to study the contribution of Hippocampal SWR events to learning' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 5 year: '2018' ... --- _id: '1334' abstract: - lang: eng text: Hippocampal neurons encode a cognitive map of space. These maps are thought to be updated during learning and in response to changes in the environment through activity-dependent synaptic plasticity. Here we examine how changes in activity influence spatial coding in rats using halorhodopsin-mediated, spatially selective optogenetic silencing. Halorhoposin stimulation leads to light-induced suppression in many place cells and interneurons; some place cells increase their firing through disinhibition, whereas some show no effect. We find that place fields of the unaffected subpopulation remain stable. On the other hand, place fields of suppressed place cells were unstable, showing remapping across sessions before and after optogenetic inhibition. Disinhibited place cells had stable maps but sustained an elevated firing rate. These findings suggest that place representation in the hippocampus is constantly governed by activity-dependent processes, and that disinhibition may provide a mechanism for rate remapping. article_number: '11824' author: - first_name: Philipp full_name: Schönenberger, Philipp id: 3B9D816C-F248-11E8-B48F-1D18A9856A87 last_name: Schönenberger - first_name: Joseph full_name: O'Neill, Joseph id: 426376DC-F248-11E8-B48F-1D18A9856A87 last_name: O'Neill - first_name: Jozsef L full_name: Csicsvari, Jozsef L id: 3FA14672-F248-11E8-B48F-1D18A9856A87 last_name: Csicsvari orcid: 0000-0002-5193-4036 citation: ama: Schönenberger P, O’Neill J, Csicsvari JL. Activity dependent plasticity of hippocampal place maps. Nature Communications. 2016;7. doi:10.1038/ncomms11824 apa: Schönenberger, P., O’Neill, J., & Csicsvari, J. L. (2016). Activity dependent plasticity of hippocampal place maps. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms11824 chicago: Schönenberger, Philipp, Joseph O’Neill, and Jozsef L Csicsvari. “Activity Dependent Plasticity of Hippocampal Place Maps.” Nature Communications. Nature Publishing Group, 2016. https://doi.org/10.1038/ncomms11824. ieee: P. Schönenberger, J. O’Neill, and J. L. Csicsvari, “Activity dependent plasticity of hippocampal place maps,” Nature Communications, vol. 7. Nature Publishing Group, 2016. ista: Schönenberger P, O’Neill J, Csicsvari JL. 2016. Activity dependent plasticity of hippocampal place maps. Nature Communications. 7, 11824. mla: Schönenberger, Philipp, et al. “Activity Dependent Plasticity of Hippocampal Place Maps.” Nature Communications, vol. 7, 11824, Nature Publishing Group, 2016, doi:10.1038/ncomms11824. short: P. Schönenberger, J. O’Neill, J.L. Csicsvari, Nature Communications 7 (2016). date_created: 2018-12-11T11:51:26Z date_published: 2016-06-10T00:00:00Z date_updated: 2021-01-12T06:49:57Z day: '10' ddc: - '570' department: - _id: JoCs doi: 10.1038/ncomms11824 ec_funded: 1 file: - access_level: open_access checksum: e43307754abe65b840a21939fe163618 content_type: application/pdf creator: system date_created: 2018-12-12T10:16:10Z date_updated: 2020-07-14T12:44:44Z file_id: '5196' file_name: IST-2016-660-v1+1_ncomms11824.pdf file_size: 1793846 relation: main_file file_date_updated: 2020-07-14T12:44:44Z has_accepted_license: '1' intvolume: ' 7' language: - iso: eng month: '06' oa: 1 oa_version: Published Version project: - _id: 257A4776-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '281511' name: Memory-related information processing in neuronal circuits of the hippocampus and entorhinal cortex - _id: 257D4372-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I2072-B27 name: Interneuron plasticity during spatial learning publication: Nature Communications publication_status: published publisher: Nature Publishing Group publist_id: '5934' pubrep_id: '660' quality_controlled: '1' scopus_import: 1 status: public title: Activity dependent plasticity of hippocampal place maps tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 7 year: '2016' ...