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Code4Memory SIGNED

Neural oscillations - a code for memory

Total Cost €


EC-Contrib. €






 Code4Memory project word cloud

Explore the words cloud of the Code4Memory project. It provides you a very rough idea of what is the project "Code4Memory" about.

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Project "Code4Memory" data sheet

The following table provides information about the project.


Organization address
address: Edgbaston
postcode: B15 2TT

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 1˙897˙750 €
 EC max contribution 1˙897˙750 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-CoG
 Funding Scheme ERC-COG
 Starting year 2015
 Duration (year-month-day) from 2015-10-01   to  2021-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF BIRMINGHAM UK (BIRMINGHAM) coordinator 1˙897˙750.00


 Project objective

Episodic memory refers to the fascinating human ability to remember past events in a highly associative and information rich way. But how are these memories coded in human brains? Any mechanism accounting for episodic memory must accomplish at least two functions: to build novel associations, and to represent the information constituting the memory. Neural oscillations, regulating the synchrony of neural assemblies, are ideally suited to accomplish these two functions, but in opposing ways. On the one hand, neurophysiological work suggests that increased synchrony strengthens synaptic connections and thus forms the basis for associative memory. Neurocomputational work, on the other hand, suggests that decreased synchrony is necessary to flexibly express information rich patterns in a neural assembly. Therefore, a conundrum exists as to how oscillations code episodic memory. The aim of this project is to propose and test a new framework that has the potential to reconcile this conflict. The central idea is that synchronization and desynchronization cooperatively code episodic memories, with synchronized activity in the hippocampus in the theta (~4 Hz) and gamma (~ 40-60 Hz) frequency range mediating the building of associations, and neocortical desynchronization in the alpha (~10 Hz) and beta (~15 Hz) frequency range mediating the representation of mnemonic information. Importantly the two modules, with their respective synchronous/asynchronous behaviours, must interact during the formation and retrieval of episodic memories, but how and whether this is the case remains untested to date. I will test these fundamental questions using a multidisciplinary and multi-method approach, including human single cell recordings, neuroimaging, brain stimulation, and computational modelling. The results from these experiments have the potential to reveal the neural code that human episodic memory is based on, which is still one of the biggest mysteries of the human mind.


year authors and title journal last update
List of publications.
2016 Rolandas Stonkus, Verena Braun, Jess R. Kerlin, Gregor Volberg, Simon Hanslmayr
Probing the causal role of prestimulus interregional synchrony for perceptual integration via tACS
published pages: , ISSN: 2045-2322, DOI: 10.1038/srep32065
Scientific Reports 6/1 2019-06-06
2016 Benjamin Griffiths, Ali Mazaheri, Stefan Debener, Simon Hanslmayr
Brain oscillations track the formation of episodic memories in the real world
published pages: 256-266, ISSN: 1053-8119, DOI: 10.1016/j.neuroimage.2016.09.021
NeuroImage 143 2019-06-06
2017 Andrew Clouter, Kimron L. Shapiro, Simon Hanslmayr
Theta Phase Synchronization Is the Glue that Binds Human Associative Memory
published pages: 3143-3148.e6, ISSN: 0960-9822, DOI: 10.1016/j.cub.2017.09.001
Current Biology 27/20 2019-06-06
2016 Simon Hanslmayr, Bernhard P. Staresina, Howard Bowman
Oscillations and Episodic Memory: Addressing the Synchronization/Desynchronization Conundrum
published pages: 16-25, ISSN: 0166-2236, DOI: 10.1016/j.tins.2015.11.004
Trends in Neurosciences 39/1 2019-06-06
2016 Alexander R. Backus, Jan-Mathijs Schoffelen, Szabolcs Szebényi, Simon Hanslmayr, Christian F. Doeller
Hippocampal-Prefrontal Theta Oscillations Support Memory Integration
published pages: 450-457, ISSN: 0960-9822, DOI: 10.1016/j.cub.2015.12.048
Current Biology 26/4 2019-06-06
2017 Simon Hanslmayr, Frederic Roux
Human Memory: Brain-State-Dependent Effects of Stimulation
published pages: R385-R387, ISSN: 0960-9822, DOI: 10.1016/j.cub.2017.03.079
Current Biology 27/10 2019-06-06
2018 George Parish, Simon Hanslmayr, Howard Bowman
The Sync/deSync Model: How a Synchronized Hippocampus and a Desynchronized Neocortex Code Memories
published pages: 3428-3440, ISSN: 0270-6474, DOI: 10.1523/JNEUROSCI.2561-17.2018
The Journal of Neuroscience 38/14 2019-06-06
2016 Sebastian Michelmann, Howard Bowman, Simon Hanslmayr
The Temporal Signature of Memories: Identification of a General Mechanism for Dynamic Memory Replay in Humans
published pages: e1002528, ISSN: 1545-7885, DOI: 10.1371/journal.pbio.1002528
PLOS Biology 14/8 2019-06-06
2017 Verena Braun, Rodika Sokoliuk, Simon Hanslmayr
On the effectiveness of event-related beta tACS on episodic memory formation and motor cortex excitability
published pages: 910-918, ISSN: 1935-861X, DOI: 10.1016/j.brs.2017.04.129
Brain Stimulation 10/5 2019-06-06
2016 Federica Meconi, Sarah Anderl-Straub, Heidelore Raum, Michael Landgrebe, Berthold Langguth, Karl-Heinz T. Bäuml, Simon Hanslmayr
Aberrant prefrontal beta oscillations predict episodic memory encoding deficits in schizophrenia
published pages: 499-505, ISSN: 2213-1582, DOI: 10.1016/j.nicl.2016.08.017
NeuroImage: Clinical 12 2019-06-06
2018 Gerd T. Waldhauser, Martin J. Dahl, Martina Ruf-Leuschner, Veronika Müller-Bamouh, Maggie Schauer, Nikolai Axmacher, Thomas Elbert, Simon Hanslmayr
The neural dynamics of deficient memory control in heavily traumatized refugees
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-018-31400-x
Scientific Reports 8/1 2019-04-19
2018 Clouter, Andrew; Shapiro, Kimron; Wang, Danying; Hanslmayr, Simon; Chen, Qiaoyu
Single-trial Phase Entrainment of Theta Oscillations in Sensory Regions Predicts Human Associative Memory Performance
published pages: , ISSN: 0270-6474, DOI: 10.1101/261487
Journal of Neuroscience 2 2019-04-19
2018 Sebastian Michelmann, Howard Bowman, Simon Hanslmayr
Replay of Stimulus-specific Temporal Patterns during Associative Memory Formation
published pages: 1577-1589, ISSN: 0898-929X, DOI: 10.1162/jocn_a_01304
Journal of Cognitive Neuroscience 30/11 2019-04-19
2018 Sebastian Michelmann, Matthias S. Treder, Benjamin Griffiths, Casper Kerrén, Frédéric Roux, Maria Wimber, David Rollings, Vijay Sawlani, Ramesh Chelvarajah, Stephanie Gollwitzer, Gernot Kreiselmeyer, Hajo Hamer, Howard Bowman, Bernhard Staresina, Simon Hanslmayr
Data-driven re-referencing of intracranial EEG based on independent component analysis (ICA)
published pages: 125-137, ISSN: 0165-0270, DOI: 10.1016/j.jneumeth.2018.06.021
Journal of Neuroscience Methods 307 2019-04-19
2018 Sebastian Michelmann, Bernhard P Staresina, Howard Bowman, Simon Hanslmayr
Speed of time-compressed forward replay flexibly changes in human episodic memory
published pages: , ISSN: 2397-3374, DOI: 10.1101/323774
Nature Human Behaviour 2019-04-19

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