---
_id: '14656'
abstract:
- lang: eng
  text: Although much is known about how single neurons in the hippocampus represent
    an animal's position, how circuit interactions contribute to spatial coding is
    less well understood. Using a novel statistical estimator and theoretical modeling,
    both developed in the framework of maximum entropy models, we reveal highly structured
    CA1 cell-cell interactions in male rats during open field exploration. The statistics
    of these interactions depend on whether the animal is in a familiar or novel environment.
    In both conditions the circuit interactions optimize the encoding of spatial information,
    but for regimes that differ in the informativeness of their spatial inputs. This
    structure facilitates linear decodability, making the information easy to read
    out by downstream circuits. Overall, our findings suggest that the efficient coding
    hypothesis is not only applicable to individual neuron properties in the sensory
    periphery, but also to neural interactions in the central brain.
acknowledgement: M.N. was supported by the European Union Horizon 2020 Grant 665385.
  J.C. was supported by the European Research Council Consolidator Grant 281511. G.T.
  was supported by the Austrian Science Fund (FWF) Grant P34015. C.S. was supported
  by an Institute of Science and Technology fellow award and by the National Science
  Foundation (NSF) Award No. 1922658. We thank Peter Baracskay, Karola Kaefer, and
  Hugo Malagon-Vina for the acquisition of the data. We also thank Federico Stella,
  Wiktor Młynarski, Dori Derdikman, Colin Bredenberg, Roman Huszar, Heloisa Chiossi,
  Lorenzo Posani, and Mohamady El-Gaby for comments on an earlier version of the manuscript.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Michele
  full_name: Nardin, Michele
  id: 30BD0376-F248-11E8-B48F-1D18A9856A87
  last_name: Nardin
  orcid: 0000-0001-8849-6570
- 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: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
- first_name: Cristina
  full_name: Savin, Cristina
  id: 3933349E-F248-11E8-B48F-1D18A9856A87
  last_name: Savin
citation:
  ama: Nardin M, Csicsvari JL, Tkačik G, Savin C. The structure of hippocampal CA1
    interactions optimizes spatial coding across experience. <i>The Journal of Neuroscience</i>.
    2023;43(48):8140-8156. doi:<a href="https://doi.org/10.1523/JNEUROSCI.0194-23.2023">10.1523/JNEUROSCI.0194-23.2023</a>
  apa: Nardin, M., Csicsvari, J. L., Tkačik, G., &#38; Savin, C. (2023). The structure
    of hippocampal CA1 interactions optimizes spatial coding across experience. <i>The
    Journal of Neuroscience</i>. Society of Neuroscience. <a href="https://doi.org/10.1523/JNEUROSCI.0194-23.2023">https://doi.org/10.1523/JNEUROSCI.0194-23.2023</a>
  chicago: Nardin, Michele, Jozsef L Csicsvari, Gašper Tkačik, and Cristina Savin.
    “The Structure of Hippocampal CA1 Interactions Optimizes Spatial Coding across
    Experience.” <i>The Journal of Neuroscience</i>. Society of Neuroscience, 2023.
    <a href="https://doi.org/10.1523/JNEUROSCI.0194-23.2023">https://doi.org/10.1523/JNEUROSCI.0194-23.2023</a>.
  ieee: M. Nardin, J. L. Csicsvari, G. Tkačik, and C. Savin, “The structure of hippocampal
    CA1 interactions optimizes spatial coding across experience,” <i>The Journal of
    Neuroscience</i>, vol. 43, no. 48. Society of Neuroscience, pp. 8140–8156, 2023.
  ista: Nardin M, Csicsvari JL, Tkačik G, Savin C. 2023. The structure of hippocampal
    CA1 interactions optimizes spatial coding across experience. The Journal of Neuroscience.
    43(48), 8140–8156.
  mla: Nardin, Michele, et al. “The Structure of Hippocampal CA1 Interactions Optimizes
    Spatial Coding across Experience.” <i>The Journal of Neuroscience</i>, vol. 43,
    no. 48, Society of Neuroscience, 2023, pp. 8140–56, doi:<a href="https://doi.org/10.1523/JNEUROSCI.0194-23.2023">10.1523/JNEUROSCI.0194-23.2023</a>.
  short: M. Nardin, J.L. Csicsvari, G. Tkačik, C. Savin, The Journal of Neuroscience
    43 (2023) 8140–8156.
date_created: 2023-12-10T23:00:58Z
date_published: 2023-11-29T00:00:00Z
date_updated: 2023-12-11T11:37:20Z
day: '29'
ddc:
- '570'
department:
- _id: JoCs
- _id: GaTk
doi: 10.1523/JNEUROSCI.0194-23.2023
ec_funded: 1
external_id:
  pmid:
  - '37758476'
file:
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  date_updated: 2023-12-11T11:30:37Z
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  file_id: '14674'
  file_name: 2023_JourNeuroscience_Nardin.pdf
  file_size: 2280632
  relation: main_file
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has_accepted_license: '1'
intvolume: '        43'
issue: '48'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1523/JNEUROSCI.0194-23.2023
month: '11'
oa: 1
oa_version: Published Version
page: 8140-8156
pmid: 1
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: 626c45b5-2b32-11ec-9570-e509828c1ba6
  grant_number: P34015
  name: Efficient coding with biophysical realism
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: The Journal of Neuroscience
publication_identifier:
  eissn:
  - 1529-2401
publication_status: published
publisher: Society of Neuroscience
quality_controlled: '1'
scopus_import: '1'
status: public
title: The structure of hippocampal CA1 interactions optimizes spatial coding across
  experience
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 43
year: '2023'
...
---
_id: '10077'
abstract:
- lang: eng
  text: Although much is known about how single neurons in the hippocampus represent
    an animal’s position, how cell-cell interactions contribute to spatial coding
    remains poorly understood. Using a novel statistical estimator and theoretical
    modeling, both developed in the framework of maximum entropy models, we reveal
    highly structured cell-to-cell interactions whose statistics depend on familiar
    vs. novel environment. In both conditions the circuit interactions optimize the
    encoding of spatial information, but for regimes that differ in the signal-to-noise
    ratio of their spatial inputs. Moreover, the topology of the interactions facilitates
    linear decodability, making the information easy to read out by downstream circuits.
    These findings suggest that the efficient coding hypothesis is not applicable
    only to individual neuron properties in the sensory periphery, but also to neural
    interactions in the central brain.
acknowledgement: We thank Peter Baracskay, Karola Kaefer and Hugo Malagon-Vina for
  the acquisition of the data. We thank Federico Stella for comments on an earlier
  version of the manuscript. MN was supported by European Union Horizon 2020 grant
  665385, JC was supported by European Research Council consolidator grant 281511,
  GT was supported by the Austrian Science Fund (FWF) grant P34015, CS was supported
  by an IST fellow grant, National Institute of Mental Health Award 1R01MH125571-01,
  by the National Science Foundation under NSF Award No. 1922658 and a Google faculty
  award.
article_processing_charge: No
author:
- first_name: Michele
  full_name: Nardin, Michele
  id: 30BD0376-F248-11E8-B48F-1D18A9856A87
  last_name: Nardin
  orcid: 0000-0001-8849-6570
- 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: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
- first_name: Cristina
  full_name: Savin, Cristina
  id: 3933349E-F248-11E8-B48F-1D18A9856A87
  last_name: Savin
citation:
  ama: Nardin M, Csicsvari JL, Tkačik G, Savin C. The structure of hippocampal CA1
    interactions optimizes spatial coding across experience. <i>bioRxiv</i>. doi:<a
    href="https://doi.org/10.1101/2021.09.28.460602">10.1101/2021.09.28.460602</a>
  apa: Nardin, M., Csicsvari, J. L., Tkačik, G., &#38; Savin, C. (n.d.). The structure
    of hippocampal CA1 interactions optimizes spatial coding across experience. <i>bioRxiv</i>.
    Cold Spring Harbor Laboratory. <a href="https://doi.org/10.1101/2021.09.28.460602">https://doi.org/10.1101/2021.09.28.460602</a>
  chicago: Nardin, Michele, Jozsef L Csicsvari, Gašper Tkačik, and Cristina Savin.
    “The Structure of Hippocampal CA1 Interactions Optimizes Spatial Coding across
    Experience.” <i>BioRxiv</i>. Cold Spring Harbor Laboratory, n.d. <a href="https://doi.org/10.1101/2021.09.28.460602">https://doi.org/10.1101/2021.09.28.460602</a>.
  ieee: M. Nardin, J. L. Csicsvari, G. Tkačik, and C. Savin, “The structure of hippocampal
    CA1 interactions optimizes spatial coding across experience,” <i>bioRxiv</i>.
    Cold Spring Harbor Laboratory.
  ista: Nardin M, Csicsvari JL, Tkačik G, Savin C. The structure of hippocampal CA1
    interactions optimizes spatial coding across experience. bioRxiv, <a href="https://doi.org/10.1101/2021.09.28.460602">10.1101/2021.09.28.460602</a>.
  mla: Nardin, Michele, et al. “The Structure of Hippocampal CA1 Interactions Optimizes
    Spatial Coding across Experience.” <i>BioRxiv</i>, Cold Spring Harbor Laboratory,
    doi:<a href="https://doi.org/10.1101/2021.09.28.460602">10.1101/2021.09.28.460602</a>.
  short: M. Nardin, J.L. Csicsvari, G. Tkačik, C. Savin, BioRxiv (n.d.).
date_created: 2021-10-04T06:23:34Z
date_published: 2021-09-29T00:00:00Z
date_updated: 2024-03-25T23:30:09Z
day: '29'
department:
- _id: GradSch
- _id: JoCs
- _id: GaTk
doi: 10.1101/2021.09.28.460602
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.biorxiv.org/content/10.1101/2021.09.28.460602
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _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: 626c45b5-2b32-11ec-9570-e509828c1ba6
  grant_number: P34015
  name: Efficient coding with biophysical realism
publication: bioRxiv
publication_status: submitted
publisher: Cold Spring Harbor Laboratory
related_material:
  record:
  - id: '11932'
    relation: dissertation_contains
    status: public
status: public
title: The structure of hippocampal CA1 interactions optimizes spatial coding across
  experience
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2021'
...
---
_id: '7684'
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. Assembly-specific disruption
    of hippocampal replay leads to selective memory deficit. <i>Neuron</i>. 2020;106(2):291-300.e6.
    doi:<a href="https://doi.org/10.1016/j.neuron.2020.01.021">10.1016/j.neuron.2020.01.021</a>
  apa: Gridchyn, I., Schönenberger, P., O’Neill, J., &#38; Csicsvari, J. L. (2020).
    Assembly-specific disruption of hippocampal replay leads to selective memory deficit.
    <i>Neuron</i>. Elsevier. <a href="https://doi.org/10.1016/j.neuron.2020.01.021">https://doi.org/10.1016/j.neuron.2020.01.021</a>
  chicago: Gridchyn, Igor, Philipp Schönenberger, Joseph O’Neill, and Jozsef L Csicsvari.
    “Assembly-Specific Disruption of Hippocampal Replay Leads to Selective Memory
    Deficit.” <i>Neuron</i>. Elsevier, 2020. <a href="https://doi.org/10.1016/j.neuron.2020.01.021">https://doi.org/10.1016/j.neuron.2020.01.021</a>.
  ieee: I. Gridchyn, P. Schönenberger, J. O’Neill, and J. L. Csicsvari, “Assembly-specific
    disruption of hippocampal replay leads to selective memory deficit,” <i>Neuron</i>,
    vol. 106, no. 2. Elsevier, p. 291–300.e6, 2020.
  ista: Gridchyn I, Schönenberger P, O’Neill J, Csicsvari JL. 2020. Assembly-specific
    disruption of hippocampal replay leads to selective memory deficit. Neuron. 106(2),
    291–300.e6.
  mla: Gridchyn, Igor, et al. “Assembly-Specific Disruption of Hippocampal Replay
    Leads to Selective Memory Deficit.” <i>Neuron</i>, vol. 106, no. 2, Elsevier,
    2020, p. 291–300.e6, doi:<a href="https://doi.org/10.1016/j.neuron.2020.01.021">10.1016/j.neuron.2020.01.021</a>.
  short: I. Gridchyn, P. Schönenberger, J. O’Neill, J.L. Csicsvari, Neuron 106 (2020)
    291–300.e6.
date_created: 2020-04-26T22:00:45Z
date_published: 2020-04-22T00:00:00Z
date_updated: 2023-08-21T06:15:31Z
day: '22'
department:
- _id: JoCs
doi: 10.1016/j.neuron.2020.01.021
ec_funded: 1
external_id:
  isi:
  - '000528268200013'
  pmid:
  - '32070475'
intvolume: '       106'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.neuron.2020.01.021
month: '04'
oa: 1
oa_version: Published Version
page: 291-300.e6
pmid: 1
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
publication: Neuron
publication_identifier:
  eissn:
  - '10974199'
  issn:
  - '08966273'
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/librarian-of-memory/
scopus_import: '1'
status: public
title: Assembly-specific disruption of hippocampal replay leads to selective memory
  deficit
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 106
year: '2020'
...
---
_id: '5828'
abstract:
- lang: eng
  text: Hippocampus is needed for both spatial working and reference memories. Here,
    using a radial eight-arm maze, we examined how the combined demand on these memories
    influenced CA1 place cell assemblies while reference memories were partially updated.
    This was contrasted with control tasks requiring only working memory or the update
    of reference memory. Reference memory update led to the reward-directed place
    field shifts at newly rewarded arms and to the gradual strengthening of firing
    in passes between newly rewarded arms but not between those passes that included
    a familiar-rewarded arm. At the maze center, transient network synchronization
    periods preferentially replayed trajectories of the next chosen arm in reference
    memory tasks but the previously visited arm in the working memory task. Hence,
    reference memory demand was uniquely associated with a gradual, goal novelty-related
    reorganization of place cell assemblies and with trajectory replay that reflected
    the animal's decision of which arm to visit next.
article_processing_charge: No
article_type: original
author:
- first_name: Haibing
  full_name: Xu, Haibing
  id: 310349D0-F248-11E8-B48F-1D18A9856A87
  last_name: Xu
- first_name: Peter
  full_name: Baracskay, Peter
  id: 361CC00E-F248-11E8-B48F-1D18A9856A87
  last_name: Baracskay
- 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: Xu H, Baracskay P, O’Neill J, Csicsvari JL. Assembly responses of hippocampal
    CA1 place cells predict learned behavior in goal-directed spatial tasks on the
    radial eight-arm maze. <i>Neuron</i>. 2019;101(1):119-132.e4. doi:<a href="https://doi.org/10.1016/j.neuron.2018.11.015">10.1016/j.neuron.2018.11.015</a>
  apa: Xu, H., Baracskay, P., O’Neill, J., &#38; Csicsvari, J. L. (2019). Assembly
    responses of hippocampal CA1 place cells predict learned behavior in goal-directed
    spatial tasks on the radial eight-arm maze. <i>Neuron</i>. Elsevier. <a href="https://doi.org/10.1016/j.neuron.2018.11.015">https://doi.org/10.1016/j.neuron.2018.11.015</a>
  chicago: Xu, Haibing, Peter Baracskay, Joseph O’Neill, and Jozsef L Csicsvari. “Assembly
    Responses of Hippocampal CA1 Place Cells Predict Learned Behavior in Goal-Directed
    Spatial Tasks on the Radial Eight-Arm Maze.” <i>Neuron</i>. Elsevier, 2019. <a
    href="https://doi.org/10.1016/j.neuron.2018.11.015">https://doi.org/10.1016/j.neuron.2018.11.015</a>.
  ieee: H. Xu, P. Baracskay, J. O’Neill, and J. L. Csicsvari, “Assembly responses
    of hippocampal CA1 place cells predict learned behavior in goal-directed spatial
    tasks on the radial eight-arm maze,” <i>Neuron</i>, vol. 101, no. 1. Elsevier,
    p. 119–132.e4, 2019.
  ista: Xu H, Baracskay P, O’Neill J, Csicsvari JL. 2019. Assembly responses of hippocampal
    CA1 place cells predict learned behavior in goal-directed spatial tasks on the
    radial eight-arm maze. Neuron. 101(1), 119–132.e4.
  mla: Xu, Haibing, et al. “Assembly Responses of Hippocampal CA1 Place Cells Predict
    Learned Behavior in Goal-Directed Spatial Tasks on the Radial Eight-Arm Maze.”
    <i>Neuron</i>, vol. 101, no. 1, Elsevier, 2019, p. 119–132.e4, doi:<a href="https://doi.org/10.1016/j.neuron.2018.11.015">10.1016/j.neuron.2018.11.015</a>.
  short: H. Xu, P. Baracskay, J. O’Neill, J.L. Csicsvari, Neuron 101 (2019) 119–132.e4.
date_created: 2019-01-13T22:59:10Z
date_published: 2019-01-02T00:00:00Z
date_updated: 2023-09-07T12:06:37Z
day: '02'
department:
- _id: JoCs
doi: 10.1016/j.neuron.2018.11.015
ec_funded: 1
external_id:
  isi:
  - '000454791500014'
intvolume: '       101'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.doi.org/10.1016/j.neuron.2018.11.015
month: '01'
oa: 1
oa_version: Published Version
page: 119-132.e4
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
publication: Neuron
publication_identifier:
  issn:
  - '10974199'
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/reading-rats-minds/
  record:
  - id: '837'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Assembly responses of hippocampal CA1 place cells predict learned behavior
  in goal-directed spatial tasks on the radial eight-arm maze
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 101
year: '2019'
...
---
_id: '6194'
abstract:
- lang: eng
  text: Grid cells with their rigid hexagonal firing fields are thought to provide
    an invariant metric to the hippocampal cognitive map, yet environmental geometrical
    features have recently been shown to distort the grid structure. Given that the
    hippocampal role goes beyond space, we tested the influence of nonspatial information
    on the grid organization. We trained rats to daily learn three new reward locations
    on a cheeseboard maze while recording from the medial entorhinal cortex and the
    hippocampal CA1 region. Many grid fields moved toward goal location, leading to
    long-lasting deformations of the entorhinal map. Therefore, distortions in the
    grid structure contribute to goal representation during both learning and recall,
    which demonstrates that grid cells participate in mnemonic coding and do not merely
    provide a simple metric of space.
article_processing_charge: No
article_type: original
author:
- first_name: Charlotte N.
  full_name: Boccara, Charlotte N.
  id: 3FC06552-F248-11E8-B48F-1D18A9856A87
  last_name: Boccara
  orcid: 0000-0001-7237-5109
- first_name: Michele
  full_name: Nardin, Michele
  id: 30BD0376-F248-11E8-B48F-1D18A9856A87
  last_name: Nardin
  orcid: 0000-0001-8849-6570
- first_name: Federico
  full_name: Stella, Federico
  id: 39AF1E74-F248-11E8-B48F-1D18A9856A87
  last_name: Stella
  orcid: 0000-0001-9439-3148
- 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: Boccara CN, Nardin M, Stella F, O’Neill J, Csicsvari JL. The entorhinal cognitive
    map is attracted to goals. <i>Science</i>. 2019;363(6434):1443-1447. doi:<a href="https://doi.org/10.1126/science.aav4837">10.1126/science.aav4837</a>
  apa: Boccara, C. N., Nardin, M., Stella, F., O’Neill, J., &#38; Csicsvari, J. L.
    (2019). The entorhinal cognitive map is attracted to goals. <i>Science</i>. American
    Association for the Advancement of Science. <a href="https://doi.org/10.1126/science.aav4837">https://doi.org/10.1126/science.aav4837</a>
  chicago: Boccara, Charlotte N., Michele Nardin, Federico Stella, Joseph O’Neill,
    and Jozsef L Csicsvari. “The Entorhinal Cognitive Map Is Attracted to Goals.”
    <i>Science</i>. American Association for the Advancement of Science, 2019. <a
    href="https://doi.org/10.1126/science.aav4837">https://doi.org/10.1126/science.aav4837</a>.
  ieee: C. N. Boccara, M. Nardin, F. Stella, J. O’Neill, and J. L. Csicsvari, “The
    entorhinal cognitive map is attracted to goals,” <i>Science</i>, vol. 363, no.
    6434. American Association for the Advancement of Science, pp. 1443–1447, 2019.
  ista: Boccara CN, Nardin M, Stella F, O’Neill J, Csicsvari JL. 2019. The entorhinal
    cognitive map is attracted to goals. Science. 363(6434), 1443–1447.
  mla: Boccara, Charlotte N., et al. “The Entorhinal Cognitive Map Is Attracted to
    Goals.” <i>Science</i>, vol. 363, no. 6434, American Association for the Advancement
    of Science, 2019, pp. 1443–47, doi:<a href="https://doi.org/10.1126/science.aav4837">10.1126/science.aav4837</a>.
  short: C.N. Boccara, M. Nardin, F. Stella, J. O’Neill, J.L. Csicsvari, Science 363
    (2019) 1443–1447.
date_created: 2019-04-04T08:39:30Z
date_published: 2019-03-29T00:00:00Z
date_updated: 2024-03-25T23:30:09Z
day: '29'
ddc:
- '570'
department:
- _id: JoCs
doi: 10.1126/science.aav4837
ec_funded: 1
external_id:
  isi:
  - '000462738000034'
file:
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  checksum: 5e6b16742cde10a560cfaf2130764da1
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-14T09:11:10Z
  date_updated: 2020-07-14T12:47:23Z
  file_id: '7826'
  file_name: 2019_Science_Boccara.pdf
  file_size: 9045923
  relation: main_file
file_date_updated: 2020-07-14T12:47:23Z
has_accepted_license: '1'
intvolume: '       363'
isi: 1
issue: '6434'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Submitted Version
page: 1443-1447
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: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Science
publication_identifier:
  eissn:
  - 1095-9203
  issn:
  - 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/grid-cells-create-treasure-map-in-rat-brain/
  record:
  - id: '6062'
    relation: popular_science
    status: public
  - id: '11932'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: The entorhinal cognitive map is attracted to goals
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 363
year: '2019'
...
---
_id: '6338'
abstract:
- lang: eng
  text: Hippocampal activity patterns representing movement trajectories are reactivated
    in immobility and sleep periods, a process associated with memory recall, consolidation,
    and decision making. It is thought that only fixed, behaviorally relevant patterns
    can be reactivated, which are stored across hippocampal synaptic connections.
    To test whether some generalized rules govern reactivation, we examined trajectory
    reactivation following non-stereotypical exploration of familiar open-field environments.
    We found that random trajectories of varying lengths and timescales were reactivated,
    resembling that of Brownian motion of particles. The animals’ behavioral trajectory
    did not follow Brownian diffusion demonstrating that the exact behavioral experience
    is not reactivated. Therefore, hippocampal circuits are able to generate random
    trajectories of any recently active map by following diffusion dynamics. This
    ability of hippocampal circuits to generate representations of all behavioral
    outcome combinations, experienced or not, may underlie a wide variety of hippocampal-dependent
    cognitive functions such as learning, generalization, and planning.
article_processing_charge: No
article_type: original
author:
- first_name: Federico
  full_name: Stella, Federico
  id: 39AF1E74-F248-11E8-B48F-1D18A9856A87
  last_name: Stella
  orcid: 0000-0001-9439-3148
- first_name: Peter
  full_name: Baracskay, Peter
  id: 361CC00E-F248-11E8-B48F-1D18A9856A87
  last_name: Baracskay
- 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: Stella F, Baracskay P, O’Neill J, Csicsvari JL. Hippocampal reactivation of
    random trajectories resembling Brownian diffusion. <i>Neuron</i>. 2019;102:450-461.
    doi:<a href="https://doi.org/10.1016/j.neuron.2019.01.052">10.1016/j.neuron.2019.01.052</a>
  apa: Stella, F., Baracskay, P., O’Neill, J., &#38; Csicsvari, J. L. (2019). Hippocampal
    reactivation of random trajectories resembling Brownian diffusion. <i>Neuron</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.neuron.2019.01.052">https://doi.org/10.1016/j.neuron.2019.01.052</a>
  chicago: Stella, Federico, Peter Baracskay, Joseph O’Neill, and Jozsef L Csicsvari.
    “Hippocampal Reactivation of Random Trajectories Resembling Brownian Diffusion.”
    <i>Neuron</i>. Elsevier, 2019. <a href="https://doi.org/10.1016/j.neuron.2019.01.052">https://doi.org/10.1016/j.neuron.2019.01.052</a>.
  ieee: F. Stella, P. Baracskay, J. O’Neill, and J. L. Csicsvari, “Hippocampal reactivation
    of random trajectories resembling Brownian diffusion,” <i>Neuron</i>, vol. 102.
    Elsevier, pp. 450–461, 2019.
  ista: Stella F, Baracskay P, O’Neill J, Csicsvari JL. 2019. Hippocampal reactivation
    of random trajectories resembling Brownian diffusion. Neuron. 102, 450–461.
  mla: Stella, Federico, et al. “Hippocampal Reactivation of Random Trajectories Resembling
    Brownian Diffusion.” <i>Neuron</i>, vol. 102, Elsevier, 2019, pp. 450–61, doi:<a
    href="https://doi.org/10.1016/j.neuron.2019.01.052">10.1016/j.neuron.2019.01.052</a>.
  short: F. Stella, P. Baracskay, J. O’Neill, J.L. Csicsvari, Neuron 102 (2019) 450–461.
date_created: 2019-04-17T08:28:59Z
date_published: 2019-04-17T00:00:00Z
date_updated: 2023-08-25T10:13:07Z
day: '17'
department:
- _id: JoCs
doi: 10.1016/j.neuron.2019.01.052
ec_funded: 1
external_id:
  isi:
  - '000465169700017'
  pmid:
  - '30819547'
intvolume: '       102'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.neuron.2019.01.052
month: '04'
oa: 1
oa_version: Published Version
page: 450-461
pmid: 1
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: 2654F984-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03713
  name: Interneuro Plasticity During Spatial Learning
publication: Neuron
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/memories-of-movement-are-replayed-randomly-during-sleep/
scopus_import: '1'
status: public
title: Hippocampal reactivation of random trajectories resembling Brownian diffusion
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 102
year: '2019'
...
---
_id: '1132'
abstract:
- lang: eng
  text: The hippocampus is thought to initiate systems-wide mnemonic processes through
    the reactivation of previously acquired spatial and episodic memory traces, which
    can recruit the entorhinal cortex as a first stage of memory redistribution to
    other brain areas. Hippocampal reactivation occurs during sharp wave-ripples,
    in which synchronous network firing encodes sequences of places.We investigated
    the coordination of this replay by recording assembly activity simultaneously
    in the CA1 region of the hippocampus and superficial layers of the medial entorhinal
    cortex. We found that entorhinal cell assemblies can replay trajectories independently
    of the hippocampus and sharp wave-ripples. This suggests that the hippocampus
    is not the sole initiator of spatial and episodic memory trace reactivation. Memory
    systems involved in these processes may include nonhierarchical, parallel components.
article_processing_charge: No
author:
- first_name: Joseph
  full_name: O'Neill, Joseph
  id: 426376DC-F248-11E8-B48F-1D18A9856A87
  last_name: O'Neill
- first_name: Charlotte
  full_name: Boccara, Charlotte
  id: 3FC06552-F248-11E8-B48F-1D18A9856A87
  last_name: Boccara
  orcid: 0000-0001-7237-5109
- first_name: Federico
  full_name: Stella, Federico
  id: 39AF1E74-F248-11E8-B48F-1D18A9856A87
  last_name: Stella
  orcid: 0000-0001-9439-3148
- first_name: Philipp
  full_name: Schönenberger, Philipp
  id: 3B9D816C-F248-11E8-B48F-1D18A9856A87
  last_name: Schönenberger
- 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: O’Neill J, Boccara CN, Stella F, Schönenberger P, Csicsvari JL. Superficial
    layers of the medial entorhinal cortex replay independently of the hippocampus.
    <i>Science</i>. 2017;355(6321):184-188. doi:<a href="https://doi.org/10.1126/science.aag2787">10.1126/science.aag2787</a>
  apa: O’Neill, J., Boccara, C. N., Stella, F., Schönenberger, P., &#38; Csicsvari,
    J. L. (2017). Superficial layers of the medial entorhinal cortex replay independently
    of the hippocampus. <i>Science</i>. American Association for the Advancement of
    Science. <a href="https://doi.org/10.1126/science.aag2787">https://doi.org/10.1126/science.aag2787</a>
  chicago: O’Neill, Joseph, Charlotte N. Boccara, Federico Stella, Philipp Schönenberger,
    and Jozsef L Csicsvari. “Superficial Layers of the Medial Entorhinal Cortex Replay
    Independently of the Hippocampus.” <i>Science</i>. American Association for the
    Advancement of Science, 2017. <a href="https://doi.org/10.1126/science.aag2787">https://doi.org/10.1126/science.aag2787</a>.
  ieee: J. O’Neill, C. N. Boccara, F. Stella, P. Schönenberger, and J. L. Csicsvari,
    “Superficial layers of the medial entorhinal cortex replay independently of the
    hippocampus,” <i>Science</i>, vol. 355, no. 6321. American Association for the
    Advancement of Science, pp. 184–188, 2017.
  ista: O’Neill J, Boccara CN, Stella F, Schönenberger P, Csicsvari JL. 2017. Superficial
    layers of the medial entorhinal cortex replay independently of the hippocampus.
    Science. 355(6321), 184–188.
  mla: O’Neill, Joseph, et al. “Superficial Layers of the Medial Entorhinal Cortex
    Replay Independently of the Hippocampus.” <i>Science</i>, vol. 355, no. 6321,
    American Association for the Advancement of Science, 2017, pp. 184–88, doi:<a
    href="https://doi.org/10.1126/science.aag2787">10.1126/science.aag2787</a>.
  short: J. O’Neill, C.N. Boccara, F. Stella, P. Schönenberger, J.L. Csicsvari, Science
    355 (2017) 184–188.
date_created: 2018-12-11T11:50:19Z
date_published: 2017-01-13T00:00:00Z
date_updated: 2023-09-20T11:30:35Z
day: '13'
ddc:
- '571'
department:
- _id: JoCs
doi: 10.1126/science.aag2787
ec_funded: 1
external_id:
  isi:
  - '000391743700044'
file:
- access_level: open_access
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:10:22Z
  date_updated: 2018-12-12T10:10:22Z
  file_id: '4809'
  file_name: IST-2018-976-v1+1_2017Preprint_ONeill_Superficial_layers.pdf
  file_size: 3761201
  relation: main_file
file_date_updated: 2018-12-12T10:10:22Z
has_accepted_license: '1'
intvolume: '       355'
isi: 1
issue: '6321'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 184 - 188
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
publication: Science
publication_identifier:
  issn:
  - '00368075'
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '6226'
pubrep_id: '976'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Superficial layers of the medial entorhinal cortex replay independently of
  the hippocampus
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 355
year: '2017'
...
---
_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. <i>Nature Communications</i>. 2016;7. doi:<a href="https://doi.org/10.1038/ncomms11824">10.1038/ncomms11824</a>
  apa: Schönenberger, P., O’Neill, J., &#38; Csicsvari, J. L. (2016). Activity dependent
    plasticity of hippocampal place maps. <i>Nature Communications</i>. Nature Publishing
    Group. <a href="https://doi.org/10.1038/ncomms11824">https://doi.org/10.1038/ncomms11824</a>
  chicago: Schönenberger, Philipp, Joseph O’Neill, and Jozsef L Csicsvari. “Activity
    Dependent Plasticity of Hippocampal Place Maps.” <i>Nature Communications</i>.
    Nature Publishing Group, 2016. <a href="https://doi.org/10.1038/ncomms11824">https://doi.org/10.1038/ncomms11824</a>.
  ieee: P. Schönenberger, J. O’Neill, and J. L. Csicsvari, “Activity dependent plasticity
    of hippocampal place maps,” <i>Nature Communications</i>, 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.” <i>Nature Communications</i>, vol. 7, 11824, Nature Publishing Group,
    2016, doi:<a href="https://doi.org/10.1038/ncomms11824">10.1038/ncomms11824</a>.
  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'
...
---
_id: '1279'
abstract:
- lang: eng
  text: During hippocampal sharp wave/ripple (SWR) events, previously occurring, sensory
    inputdriven neuronal firing patterns are replayed. Such replay is thought to be
    important for plasticity- related processes and consolidation of memory traces.
    It has previously been shown that the electrical stimulation-induced disruption
    of SWR events interferes with learning in rodents in different experimental paradigms.
    On the other hand, the cognitive map theory posits that the plastic changes of
    the firing of hippocampal place cells constitute the electrophysiological counterpart
    of the spatial learning, observable at the behavioral level. Therefore, we tested
    whether intact SWR events occurring during the sleep/rest session after the first
    exploration of a novel environment are needed for the stabilization of the CA1
    code, which process requires plasticity. We found that the newly-formed representation
    in the CA1 has the same level of stability with optogenetic SWR blockade as with
    a control manipulation that delivered the same amount of light into the brain.
    Therefore our results suggest that at least in the case of passive exploratory
    behavior, SWR-related plasticity is dispensable for the stability of CA1 ensembles.
acknowledgement: 'The research leading to these results has received funding from
  the People Programme (Marie Curie Actions) of the European Union''s Seventh Framework
  Programme (FP7/2007-2013) under REA grant agreement n° [291734] via the IST FELLOWSHIP
  awarded to Dr. Krisztián A. Kovács and the European Research Council starting grant
  (acronym: HIPECMEM Project reference: 281511) awarded to Dr. Jozsef Csicsvari. We
  thank Lauri Viljanto for technical help in building the ripple detector.'
article_number: e0164675
author:
- first_name: Krisztián
  full_name: Kovács, Krisztián
  id: 2AB5821E-F248-11E8-B48F-1D18A9856A87
  last_name: Kovács
- first_name: Joseph
  full_name: O'Neill, Joseph
  id: 426376DC-F248-11E8-B48F-1D18A9856A87
  last_name: O'Neill
- first_name: Philipp
  full_name: Schönenberger, Philipp
  id: 3B9D816C-F248-11E8-B48F-1D18A9856A87
  last_name: Schönenberger
- first_name: Markku
  full_name: Penttonen, Markku
  last_name: Penttonen
- 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: Jozsef L
  full_name: Csicsvari, Jozsef L
  id: 3FA14672-F248-11E8-B48F-1D18A9856A87
  last_name: Csicsvari
  orcid: 0000-0002-5193-4036
citation:
  ama: Kovács K, O’Neill J, Schönenberger P, Penttonen M, Rangel Guerrero DK, Csicsvari
    JL. Optogenetically blocking sharp wave ripple events in sleep does not interfere
    with the formation of stable spatial representation in the CA1 area of the hippocampus.
    <i>PLoS One</i>. 2016;11(10). doi:<a href="https://doi.org/10.1371/journal.pone.0164675">10.1371/journal.pone.0164675</a>
  apa: Kovács, K., O’Neill, J., Schönenberger, P., Penttonen, M., Rangel Guerrero,
    D. K., &#38; Csicsvari, J. L. (2016). Optogenetically blocking sharp wave ripple
    events in sleep does not interfere with the formation of stable spatial representation
    in the CA1 area of the hippocampus. <i>PLoS One</i>. Public Library of Science.
    <a href="https://doi.org/10.1371/journal.pone.0164675">https://doi.org/10.1371/journal.pone.0164675</a>
  chicago: Kovács, Krisztián, Joseph O’Neill, Philipp Schönenberger, Markku Penttonen,
    Dámaris K Rangel Guerrero, and Jozsef L Csicsvari. “Optogenetically Blocking Sharp
    Wave Ripple Events in Sleep Does Not Interfere with the Formation of Stable Spatial
    Representation in the CA1 Area of the Hippocampus.” <i>PLoS One</i>. Public Library
    of Science, 2016. <a href="https://doi.org/10.1371/journal.pone.0164675">https://doi.org/10.1371/journal.pone.0164675</a>.
  ieee: K. Kovács, J. O’Neill, P. Schönenberger, M. Penttonen, D. K. Rangel Guerrero,
    and J. L. Csicsvari, “Optogenetically blocking sharp wave ripple events in sleep
    does not interfere with the formation of stable spatial representation in the
    CA1 area of the hippocampus,” <i>PLoS One</i>, vol. 11, no. 10. Public Library
    of Science, 2016.
  ista: Kovács K, O’Neill J, Schönenberger P, Penttonen M, Rangel Guerrero DK, Csicsvari
    JL. 2016. Optogenetically blocking sharp wave ripple events in sleep does not
    interfere with the formation of stable spatial representation in the CA1 area
    of the hippocampus. PLoS One. 11(10), e0164675.
  mla: Kovács, Krisztián, et al. “Optogenetically Blocking Sharp Wave Ripple Events
    in Sleep Does Not Interfere with the Formation of Stable Spatial Representation
    in the CA1 Area of the Hippocampus.” <i>PLoS One</i>, vol. 11, no. 10, e0164675,
    Public Library of Science, 2016, doi:<a href="https://doi.org/10.1371/journal.pone.0164675">10.1371/journal.pone.0164675</a>.
  short: K. Kovács, J. O’Neill, P. Schönenberger, M. Penttonen, D.K. Rangel Guerrero,
    J.L. Csicsvari, PLoS One 11 (2016).
date_created: 2018-12-11T11:51:06Z
date_published: 2016-10-19T00:00:00Z
date_updated: 2021-01-12T06:49:35Z
day: '19'
ddc:
- '570'
- '571'
department:
- _id: JoCs
doi: 10.1371/journal.pone.0164675
ec_funded: 1
file:
- access_level: open_access
  checksum: 395895ecb2216e9c39135abaa56b28b3
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:13:26Z
  date_updated: 2020-07-14T12:44:42Z
  file_id: '5009'
  file_name: IST-2016-690-v1+1_journal.pone.0164675.PDF
  file_size: 4353592
  relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: '        11'
issue: '10'
language:
- iso: eng
month: '10'
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: 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
publication: PLoS One
publication_status: published
publisher: Public Library of Science
publist_id: '6037'
pubrep_id: '690'
quality_controlled: '1'
scopus_import: 1
status: public
title: Optogenetically blocking sharp wave ripple events in sleep does not interfere
  with the formation of stable spatial representation in the CA1 area of the hippocampus
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: 11
year: '2016'
...
---
_id: '2860'
abstract:
- lang: eng
  text: 'In the hippocampus, cell assemblies forming mnemonic representations of space
    are thought to arise as a result of changes in functional connections of pyramidal
    cells. We have found that CA1 interneuron circuits are also reconfigured during
    goal-oriented spatial learning through modification of inputs from pyramidal cells.
    As learning progressed, new pyramidal assemblies expressed in theta cycles alternated
    with previously established ones, and eventually overtook them. The firing patterns
    of interneurons developed a relationship to new, learning-related assemblies:
    some interneurons associated their activity with new pyramidal assemblies while
    some others dissociated from them. These firing associations were explained by
    changes in the weight of monosynaptic inputs received by interneurons from new
    pyramidal assemblies, as these predicted the associational changes. Spatial learning
    thus engages circuit modifications in the hippocampus that incorporate a redistribution
    of inhibitory activity that might assist in the segregation of competing pyramidal
    cell assembly patterns in space and time.'
acknowledgement: D.D. and J.C. were supported by a MRC Intramural Programme Grant
  U138197111
author:
- first_name: David
  full_name: Dupret, David
  last_name: Dupret
- 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: Dupret D, O’Neill J, Csicsvari JL. Dynamic reconfiguration of hippocampal interneuron
    circuits during spatial learning. <i>Neuron</i>. 2013;78(1):166-180. doi:<a href="https://doi.org/10.1016/j.neuron.2013.01.033">10.1016/j.neuron.2013.01.033</a>
  apa: Dupret, D., O’Neill, J., &#38; Csicsvari, J. L. (2013). Dynamic reconfiguration
    of hippocampal interneuron circuits during spatial learning. <i>Neuron</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.neuron.2013.01.033">https://doi.org/10.1016/j.neuron.2013.01.033</a>
  chicago: Dupret, David, Joseph O’Neill, and Jozsef L Csicsvari. “Dynamic Reconfiguration
    of Hippocampal Interneuron Circuits during Spatial Learning.” <i>Neuron</i>. Elsevier,
    2013. <a href="https://doi.org/10.1016/j.neuron.2013.01.033">https://doi.org/10.1016/j.neuron.2013.01.033</a>.
  ieee: D. Dupret, J. O’Neill, and J. L. Csicsvari, “Dynamic reconfiguration of hippocampal
    interneuron circuits during spatial learning,” <i>Neuron</i>, vol. 78, no. 1.
    Elsevier, pp. 166–180, 2013.
  ista: Dupret D, O’Neill J, Csicsvari JL. 2013. Dynamic reconfiguration of hippocampal
    interneuron circuits during spatial learning. Neuron. 78(1), 166–180.
  mla: Dupret, David, et al. “Dynamic Reconfiguration of Hippocampal Interneuron Circuits
    during Spatial Learning.” <i>Neuron</i>, vol. 78, no. 1, Elsevier, 2013, pp. 166–80,
    doi:<a href="https://doi.org/10.1016/j.neuron.2013.01.033">10.1016/j.neuron.2013.01.033</a>.
  short: D. Dupret, J. O’Neill, J.L. Csicsvari, Neuron 78 (2013) 166–180.
date_created: 2018-12-11T11:59:59Z
date_published: 2013-03-21T00:00:00Z
date_updated: 2021-01-12T07:00:19Z
day: '21'
ddc:
- '570'
department:
- _id: JoCs
doi: 10.1016/j.neuron.2013.01.033
ec_funded: 1
file:
- access_level: open_access
  checksum: 0e18cb8561153ddb50bb5af16e7c9e97
  content_type: application/pdf
  creator: dernst
  date_created: 2019-01-23T08:08:07Z
  date_updated: 2020-07-14T12:45:52Z
  file_id: '5877'
  file_name: 2013_Neuron_Dupret.pdf
  file_size: 2637837
  relation: main_file
file_date_updated: 2020-07-14T12:45:52Z
has_accepted_license: '1'
intvolume: '        78'
issue: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 166 - 180
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
publication: Neuron
publication_status: published
publisher: Elsevier
publist_id: '3929'
quality_controlled: '1'
scopus_import: 1
status: public
title: Dynamic reconfiguration of hippocampal interneuron circuits during spatial
  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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 78
year: '2013'
...
---
_id: '2958'
abstract:
- lang: eng
  text: 'The activity of hippocampal pyramidal cells reflects both the current position
    of the animal and information related to its current behavior. Here we investigated
    whether single hippocampal neurons can encode several independent features defining
    trials during a memory task. We also tested whether task-related information is
    represented by partial remapping of the place cell population or, instead, via
    firing rate modulation of spatially stable place cells. To address these two questions,
    the activity of hippocampal neurons was recorded in rats performing a conditional
    discrimination task on a modified T-maze in which the identity of a food reward
    guided behavior. When the rat was on the central arm of the maze, the firing rate
    of pyramidal cells changed depending on two independent factors: (1) the identity
    of the food reward given to the animal and (2) the previous location of the animal
    on the maze. Importantly, some pyramidal cells encoded information relative to
    both factors. This trial-type specific and retrospective coding did not interfere
    with the spatial representation of the maze: hippocampal cells had stable place
    fields and their theta-phase precession profiles were unaltered during the task,
    indicating that trial-related information was encoded via rate remapping. During
    error trials, encoding of both trial-related information and spatial location
    was impaired. Finally, we found that pyramidal cells also encode trial-related
    information via rate remapping during the continuous version of the rewarded alternation
    task without delays. These results suggest that hippocampal neurons can encode
    several task-related cognitive aspects via rate remapping.'
acknowledgement: J.C. was supported by a MRC Intramural Programme Grant (U138197111)
  and a European Research Council Starter Grant (281511). K.A. held a Wellcome Trust
  PhD studentship and a Humboldt Research Fellowship for Postdoctoral Researchers.
  D.M.B. was supported by Wellcome Trust Senior Fellowships (074385 and 087736).
author:
- first_name: Kevin
  full_name: Allen, Kevin
  last_name: Allen
- first_name: J Nick
  full_name: Rawlins, J Nick
  last_name: Rawlins
- first_name: David
  full_name: Bannerman, David
  last_name: Bannerman
- 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: Allen K, Rawlins JN, Bannerman D, Csicsvari JL. Hippocampal place cells can
    encode multiple trial-dependent features through rate remapping. <i>Journal of
    Neuroscience</i>. 2012;32(42):14752-14766. doi:<a href="https://doi.org/10.1523/JNEUROSCI.6175-11.2012">10.1523/JNEUROSCI.6175-11.2012</a>
  apa: Allen, K., Rawlins, J. N., Bannerman, D., &#38; Csicsvari, J. L. (2012). Hippocampal
    place cells can encode multiple trial-dependent features through rate remapping.
    <i>Journal of Neuroscience</i>. Society for Neuroscience. <a href="https://doi.org/10.1523/JNEUROSCI.6175-11.2012">https://doi.org/10.1523/JNEUROSCI.6175-11.2012</a>
  chicago: Allen, Kevin, J Nick Rawlins, David Bannerman, and Jozsef L Csicsvari.
    “Hippocampal Place Cells Can Encode Multiple Trial-Dependent Features through
    Rate Remapping.” <i>Journal of Neuroscience</i>. Society for Neuroscience, 2012.
    <a href="https://doi.org/10.1523/JNEUROSCI.6175-11.2012">https://doi.org/10.1523/JNEUROSCI.6175-11.2012</a>.
  ieee: K. Allen, J. N. Rawlins, D. Bannerman, and J. L. Csicsvari, “Hippocampal place
    cells can encode multiple trial-dependent features through rate remapping,” <i>Journal
    of Neuroscience</i>, vol. 32, no. 42. Society for Neuroscience, pp. 14752–14766,
    2012.
  ista: Allen K, Rawlins JN, Bannerman D, Csicsvari JL. 2012. Hippocampal place cells
    can encode multiple trial-dependent features through rate remapping. Journal of
    Neuroscience. 32(42), 14752–14766.
  mla: Allen, Kevin, et al. “Hippocampal Place Cells Can Encode Multiple Trial-Dependent
    Features through Rate Remapping.” <i>Journal of Neuroscience</i>, vol. 32, no.
    42, Society for Neuroscience, 2012, pp. 14752–66, doi:<a href="https://doi.org/10.1523/JNEUROSCI.6175-11.2012">10.1523/JNEUROSCI.6175-11.2012</a>.
  short: K. Allen, J.N. Rawlins, D. Bannerman, J.L. Csicsvari, Journal of Neuroscience
    32 (2012) 14752–14766.
date_created: 2018-12-11T12:00:33Z
date_published: 2012-10-17T00:00:00Z
date_updated: 2021-01-12T07:40:03Z
day: '17'
department:
- _id: JoCs
doi: 10.1523/JNEUROSCI.6175-11.2012
ec_funded: 1
external_id:
  pmid:
  - '23077060'
intvolume: '        32'
issue: '42'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3531717/
month: '10'
oa: 1
oa_version: Submitted Version
page: 14752 - 14766
pmid: 1
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
publication: Journal of Neuroscience
publication_status: published
publisher: Society for Neuroscience
publist_id: '3768'
quality_controlled: '1'
scopus_import: 1
status: public
title: Hippocampal place cells can encode multiple trial-dependent features through
  rate remapping
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2012'
...
