Research Article
Open access
Published on 22 November 2024
Download pdf
Liu,Z. (2024). The role of the hippocampus in memory formation and consolidation. Theoretical and Natural Science,63,62-67.
Export citation

The role of the hippocampus in memory formation and consolidation

Zixiu Liu *,1,
  • 1 Division of Biosciences, University College London, London, United Kingdom

* Author to whom correspondence should be addressed.

https://doi.org/10.54254/2753-8818/63/20241585

Abstract

The hippocampus is one of the most well-studied areas in the brain. After the studies on Henry Molaison (H.M.) and rodent model confirming its role in memory formation and consolidation, its anatomical, physiological, and psychological characteristics in memory processing have been studied for a long time. The framework of its role in memory processing is continuously building up from the synapse level to the system level. Current studies are working on enriching the detail of the blueprint and confirming whether the framework can explain results recording from new techniques. This review will introduce the physiological, theoretical mechanism of memory formation and consolidation in the hippocampus with results from current studies. In addition, it will also discuss the current process of framework, suggest some limitations that these studies face, and give a comprehensive view of the role of hippocampus’ functions in memory processing after the study of H.M. Future studies should incorporate longitudinal designs to understand the developmental trajectory of hippocampus and its role in cognitive development.

Keywords

hippocampus, pattern separation and completion, system consolidation theory.

[1]. Scoville, W. B., & Milner, B. (1957). Loss of recent memory after bilateral hippocampal lesions. Journal of neurology, neurosurgery, and psychiatry, 20(1), 11.

[2]. O'Keefe, J., & Dostrovsky, J. (1971). The hippocampus as a spatial map: preliminary evidence from unit activity in the freely-moving rat. Brain research. Brain Res, 34(1), 171-175.

[3]. Castellucci, V., Pinsker, H., Kupfermann, I., & Kandel, E. R. (1970). Neuronal mechanisms of habituation and dishabituation of the gill-withdrawal reflex in Aplysia. Science, 167(3926), 1745-1748.

[4]. Schacter, D. L., & Addis, D. R. (2007). The cognitive neuroscience of constructive memory: remembering the past and imagining the future. Philosophical Transactions of the Royal Society B: Biological Sciences, 362(1481), 773-786.

[5]. Fortin, N. J., Agster, K. L., & Eichenbaum, H. B. (2002). Critical role of the hippocampus in memory for sequences of events. Nature neuroscience, 5(5), 458-462.

[6]. Yassa, M. A., & Stark, C. E. (2011). Pattern separation in the hippocampus. Trends in neurosciences, 34(10), 515-525.

[7]. Allegra, M., Posani, L., Gómez-Ocádiz, R., & Schmidt-Hieber, C. (2020). Differential relation between neuronal and behavioral discrimination during hippocampal memory encoding. Neuron, 108(6), 1103-1112.

[8]. Tang, L., Pruitt, P. J., Yu, Q., Homayouni, R., Daugherty, A. M., Damoiseaux, J. S., & Ofen, N. (2020). Differential functional connectivity in anterior and posterior hippocampus supporting the development of memory formation. Frontiers in Human Neuroscience, 14, 204.

[9]. Wagner, A. D., Schacter, D. L., Rotte, M., Koutstaal, W., Maril, A., Dale, A. M., ... & Buckner, R. L. (1998). Building memories: remembering and forgetting of verbal experiences as predicted by brain activity. Science, 281(5380), 1188-1191.

[10]. Nadel, L., & Moscovitch, M. (1997). Memory consolidation, retrograde amnesia and the hippocampal complex. Current opinion in neurobiology, 7(2), 217-227.

[11]. Marco, A., Meharena, H. S., Dileep, V., Raju, R. M., Davila-Velderrain, J., Zhang, A. L., & Tsai, L. H. (2020). Mapping the epigenomic and transcriptomic interplay during memory formation and recall in the hippocampal engram ensemble. Nature neuroscience, 23(12), 1606-1617.

[12]. McGaugh, J. L. (2000). Memory--a century of consolidation. Science, 287(5451), 248-251.

[13]. Meeter, M., & Murre, J. M. (2004). Consolidation of long-term memory: evidence and alternatives. Psychological Bulletin, 130(6), 843.

[14]. Diekelmann, S., & Born, J. (2010). The memory function of sleep. Nature reviews neuroscience, 11(2), 114-126.

[15]. Wilson, M. A., & McNaughton, B. L. (1994). Reactivation of hippocampal ensemble memories during sleep. Science, 265(5172), 676-679.

[16]. Geva-Sagiv, M., Mankin, E. A., Eliashiv, D., Epstein, S., Cherry, N., Kalender, G., ... & Fried, I. (2023). Augmenting hippocampal–prefrontal neuronal synchrony during sleep enhances memory consolidation in humans. Nature neuroscience, 26(6), 1100-1110.

[17]. Goto, A. (2022). Synaptic plasticity during systems memory consolidation. Neuroscience research, 183, 1-6.

Cite this article

Liu,Z. (2024). The role of the hippocampus in memory formation and consolidation. Theoretical and Natural Science,63,62-67.

Data availability

The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.

Disclaimer/Publisher's Note

The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of EWA Publishing and/or the editor(s). EWA Publishing and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

About volume

Volume title: Proceedings of the 4th International Conference on Biological Engineering and Medical Science

Conference website: https://2024.icbiomed.org/
ISBN:978-1-83558-729-4(Print) / 978-1-83558-730-0(Online)
Conference date: 25 October 2024
Editor:Alan Wang
Series: Theoretical and Natural Science
Volume number: Vol.63
ISSN:2753-8818(Print) / 2753-8826(Online)

© 2024 by the author(s). Licensee EWA Publishing, Oxford, UK. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. Authors who publish this series agree to the following terms:
1. Authors retain copyright and grant the series right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this series.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the series's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this series.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See Open access policy for details).