Whelan, M.T., Prescott, T.J. orcid.org/0000-0003-4927-5390 and Vasilaki, E. orcid.org/0000-0003-3705-7070 (2020) Fast reverse replays of recent spatiotemporal trajectories in a robotic hippocampal model. In: Vouloutsi, V., Mura, A., Tauber, F., Speck, T., Prescott, T.J. and Verschure, P.F.M.J., (eds.) Biomimetic and Biohybrid Systems : 9th International Conference, Living Machines 2020, Freiburg, Germany, July 28–30, 2020, Proceedings. Living Machines 2020, 28-30 Jul 2020, Freiburg, Germany. Lecture Notes in Computer Science (12413). Springer, Cham , pp. 390-401. ISBN 9783030643126
Abstract
A number of computational models have recently emerged in an attempt to understand the dynamics of hippocampal replay, but there has been little progress in testing and implementing these models in real-world robotics settings. Presented here is a bioinspired hippocampal CA3 network model, that runs in real-time to produce reverse replays of recent spatiotemporal sequences in a robotic spatial navigation task. For the sake of computational efficiency, the model is composed of continuous-rate based neurons, but incorporates two biophysical properties that have recently been hypothesised to play an important role in the generation of reverse replays: intrinsic plasticity and short-term plasticity. As this model only replays recently active trajectories, it does not directly address the functional properties of reverse replay, for instance in robotic learning tasks, but it does support further investigations into how reverse replays could contribute to functional improvements.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2020 Springer Nature Switzerland AG. This is an author-produced preprint version of a paper submitted to Biomimetic and Biohybrid Systems. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Robotics; Hippocampal replay; Computational modelling |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Computer Science (Sheffield) |
Funding Information: | Funder Grant number European Commission - HORIZON 2020 785907; 945539 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jan 2022 09:36 |
Last Modified: | 18 Jan 2022 09:37 |
Status: | Published |
Publisher: | Springer, Cham |
Series Name: | Lecture Notes in Computer Science |
Refereed: | Yes |
Identification Number: | 10.1007/978-3-030-64313-3_37 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:182588 |