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Dr. Tomas Ryan
Associate Professor, Biochemistry
Associate Professor, Trinity Inst. of Neurosciences (TCIN)

Publications and Further Research Outputs

Peer-Reviewed Publications

O'Sullivan FM, Ryan TJ, If Engrams Are the Answer, What Is the Question?, Engrams: A Window into the Memory Trace, 2024, p273-302 Journal Article, 2024

Chapman DP, Sarah Power, Stefano Vicini, Ryan TJ, Burns MP, Amnesia after Repeated Head Impact Is Caused by Impaired Synaptic Plasticity in the Memory Engram., Journal of Neuroscience, 2024, pe1560232024 Journal Article, 2024

Clara Ortega-de San Luis, Maurizio Pezzoli, Esteban Urrieta, Tomás J. Ryan, Engram cell connectivity as a mechanism for information encoding and memory function, Current Biology, 33, (24), 2023, p5368-5380.e5 Journal Article, 2023

Sarah D. Power, Erika Stewart, Louisa G. Zielke, Eric P. Byrne, Aaron Douglas, Clara Ortega-de San Luis, Lydia Lynch, Tomás J. Ryan, Immune activation state modulates infant engram expression across development, Science Advances, 9, (45), 2023 Journal Article, 2023

James D. O'Leary, Rasmus Bruckner, Livia Autore, Tomás Ryan, Natural forgetting is modulated by experience, eLife, 2023 Journal Article, 2023 DOI

Autore L, O'Leary JD, Ortega-de San Luis C, Ryan TJ, Adaptive expression of engrams by retroactive interference., Cell Reports, 42, (8), 2023, p112999 Journal Article, 2023

Ryan TJ, Frankland PW, Forgetting as a form of adaptive engram cell plasticity., Nature Reviews Neuroscience, 2022 Journal Article, 2022 DOI

Donato F, Ryan TJ, Framing the future of neuroscience in a time of great upheaval: Introducing a series of essays by the scholars of the FENS-Kavli network., European Journal of Neuroscience, 2022 Journal Article, 2022 DOI

O'Leary T, Hauser TU, Ryan TJ, Rezaval C, FENS-Kavli Network of Excellence: Science needs strong European cohesion., European journal of neuroscience, 2022 Journal Article, 2022 DOI

La Terra D, Ann-Sofie Bjerre, Marius Rosier, Masuda R, Ryan TJ, Lucy Palmer, The role of higher-order thalamus during learning and correct performance in goal-directed behavior. , eLife, 11, 2022 Journal Article, 2022

Ortega-de San Luis C, Ryan TJ, Understanding the physical basis of memory: Molecular mechanisms of the engram., Journal of Biological Chemistry, 2022 Journal Article, 2022 DOI

Ryan TJ, Ortega-de San Luis C, Pezzoli M, Sen S, Engram cell connectivity: an evolving substrate for information storage., Current Opinion in Neurobiology, 2021 Journal Article, 2021 DOI

Memory and Instinct as a Continuum of Information Storage in, editor(s)David Poeppel, George R. Mangun, Michael S. Gazzaniga , The Cognitive Neurosciences (Sixth Edition), MIT Press, 2020, [Ryan. T.J.] Book Chapter, 2020

Antoine Harel, Tomás J Ryan, The memory toolbox: how genetic manipulations and cellular imaging are transforming our understanding of learned information, Current Opinion in Behavioral Sciences, 32, 2020, p136--147 Journal Article, 2020 DOI

Autore L, Ryan TJ, Memory: It's Not a Lie if You Believe It., Current Biology, 2020 Journal Article, 2020 DOI

Pignatelli, M. and Ryan, T.J. and Roy, D.S. and Lovett, C. and Smith, L.M. and Muralidhar, S. and Tonegawa, S., Engram Cell Excitability State Determines the Efficacy of Memory Retrieval, Neuron, 101, (2), 2019, p274-284.e5 Journal Article, 2019 DOI

McKay, S. and Ryan, T.J. and McQueen, J. and Indersmitten, T. and Marwick, K.F.M. and Hasel, P. and Kopanitsa, M.V. and Baxter, P.S. and Martel, M.-A. and Kind, P.C. and Wyllie, D.J.A. and O'Dell, T.J. and Grant, S.G.N. and Hardingham, G.E. and Komiyama, N.H., The Developmental Shift of NMDA Receptor Composition Proceeds Independently of GluN2 Subunit-Specific GluN2 C-Terminal Sequences, Cell Reports, 25, (4), 2018, p841-851.e4 Journal Article, 2018 DOI

Ortega-de San Luis, C. and Ryan, T.J., United states of amnesia: rescuing memory loss from diverse conditions, Disease Models and Mechanisms, 11, (5), 2018 Journal Article, 2018 DOI

Queenan BN, Ryan TJ, Gazzaniga MS, Gallistel CR, On the research of time past: the hunt for the substrate of memory., Annals of the New York Academy of Sciences, 2017 Journal Article, 2017

McQueen J, Ryan TJ, McKay S, Marwick K, Baxter P, Carpanini SM, Wishart TM, Gillingwater TH, Manson JC, Wyllie DJA, Grant SGN, McColl BW, Hardingham GE, Pro-death NMDA receptor signaling is promoted by the GluN2B C-terminus independently of Dapk1., eLife, 2017 Journal Article, 2017

Frank RA, Komiyama NH, Ryan TJ, Zhu F, O'Dell TJ, Grant SG., NMDA receptors are selectively partitioned into complexes and supercomplexes during synapse maturation., Nature Communications, 7, 2016, p11264 Journal Article, 2016 DOI

Poo MM, Pignatelli M, Ryan TJ, Tonegawa S, Bonhoeffer T, Martin KC, Rudenko A, Tsai LH, Tsien RW, Fishell G, Mullins C, Gonçalves JT, Shtrahman M, Johnston ST, Gage FH, Dan Y, Long J, Buzsáki G, Stevens C., What is memory? The present state of the engram., BMC Biology, 14, 2016, p40 Journal Article, 2016 DOI

Ryan TJ, Tonegawa S., Rehebbilitating Memory., Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 41, (1), 2016, p370-371 Journal Article, 2016 DOI

Tonegawa S, Pignatelli M, Roy DS, Ryan TJ., Memory engram storage and retrieval., Current Opinion in Neurobiology, 35, 2015, p101-109 Journal Article, 2015 DOI

Ryan, T.J. and Roy, D.S. and Pignatelli, M. and Arons, A. and Tonegawa, S., Engram cells retain memory under retrograde amnesia, Science, 348, (6238), 2015, p1007-1013 Journal Article, 2015 DOI

Ramirez, S., Liu, X., Lin, P.-A., Suh, J., Pignatelli, M., Redondo, R.L., Ryan, T.J., Tonegawa, S., Creating a false memory in the hippocampus, Science, 341, (6144), 2013, p387-391 Journal Article, 2013

Ryan, T.J., Kopanitsa, M.V., Indersmitten, T., Nithianantharajah, J., Afinowi, N.O., Pettit, C., Stanford, L.E., Sprengel, R., Saksida, L.M., Bussey, T.J., O'Dell, T.J., Grant, S.G.N., Komiyama, N.H., Evolution of GluN2A/B cytoplasmic domains diversified vertebrate synaptic plasticity and behavior, Nature Neuroscience, 16, (1), 2013, p25-32 Journal Article, 2013

Martel, M.-A., Ryan, T., Bell, K., Fowler, J., McMahon, A., Al-Mubarak, B., Komiyama, N., Horsburgh, K., Kind, P., Grant, S., Wyllie, D., Hardingham, G., The Subtype of GluN2 C-terminal Domain Determines the Response to Excitotoxic Insults, Neuron, 74, (3), 2012, p543-556 Journal Article, 2012

Ryan, T.J., Grant, S.G.N., The origin and evolution of synapses, Nature Reviews Neuroscience, 10, (10), 2009, p701-712 Journal Article, 2009

Ryan, T.J., Emes, R.D., Grant, S.G.N., Komiyama, N.H., Evolution of NMDA receptor cytoplasmic interaction domains: Implications for organisation of synaptic signalling complexes, BMC Neuroscience, 9, 2008 Journal Article, 2008

Non-Peer-Reviewed Publications

Joaquin Matias Alfei Palloni, Ralph R. Miller, Tomás Ryan, and Gonzalo P. Urcelay, Rethinking Memory Impairments: Retrieval Failure, PsyArXiv Preprints, 2024, phttps://doi.org/10.31234/osf.i Journal Article, 2024

Research Expertise

Keywords

ENGRAM; Evolution; MEMORY

Recognition

Representations

Reviewing Editor, eLife 2024 - Present

Co-Organizer (with Prof. Timothy O'Leary (University of Cambridge), Prof. Tobias Hauser (Universiy College London), and Dr. Carolina Rezaval (University of Birmingham) of FENS Special Interest Event SiE04 - Strength through cohesion: protecting European neuroscience in a turbulent world, FENS Forum 2022, Paris, France. https://forum2022.fensforum.org/event/sie4-strength-through-cohesion-protecting-european-neuroscience-in-a-turbulent-world-1215-1315/ July 2022

Speaker, Brain Innovation Days, Fast-tracking brain innovation in times of COVID-19, European Brain Council event, Brussels and online. https://live.eventtia.com/en/brain April 2021

Organizer of FENS Special Interest Event SiE15: Research Funding in Europe Post-COVID-19, FENS Virtual Forum 2020. July 2020

International Member of the US Society for Neuroscience (SFN)'s Government and Public Affairs Committee https://www.sfn.org/about/volunteer/committees/government-and-public-affairs-committee September 2024 - October 2026

Co-Editor (with Prof. Charan Ranganath, UC Davis) of Learning and Memory Section of 6th Edition of The Cognitive Neurosciences textbook (MIT Press, USA), published in 2020 https://mitpress.mit.edu/9780262043250/the-cognitive-neurosciences/ May 2017 - September 2019

Member of the FENS (Federation of European Neuroscience Societies) Program Committee, FENS Forum 2024, Vienna, Austria. 2022 - 2024

Past-Chair, FENS-Kavli Network of Excellence, European Union. December 2021 - September 2023

Chair, FENS-Kavli Network of Excellence, Europe Union. August 2019 - December 2021

Secretary, Molecular and Cellular Cognition Society, USA. January 2023 - September 2023

President, Molecular and Cellular Cognition Society, USA. October 2024 - September 2025

President Elect, Molecular and Cellular Cognition Society, USA. October 2023 - September 2024

Awards and Honours

Elected to Fellowship, Trinity College Dublin, Ireland May 2022

Scialog Fellow, Research Corporation for Science Advancement (RCSA), USA March 2022 - November 2024

Lister Institute Research Prize, Lister Institute of Preventative Medicine, UK September 2021

CIFAR-Azrieli Global Scholar, Canadian Institute for Advanced Research, Canada May 2021 - April 2024

FENS-Kavli Scholar, FENS-Kavli Network of Excellence, European Union September 2018 - August 2023

Early Career Researcher of the Year Award, Science Foundation Ireland, Ireland October 2018

European Research Council (ERC) Staring Grant, European Union February 2017 - January 2023

President of Ireland Young Researcher Award (PIYRA), Science Foundation Ireland, Ireland December 2016 - November 2022

Jacobs Foundation Research Fellowship January 2017 - January 2020

Discovery Early Career Research Award (DECRA), National Health and Medical Research Council, Australia (declined) January 2017

Junior Research Fellowship, Wolfson College, University of Cambridge, UK September 2009 - September 2010

Wellcome Trust PhD Studentship (4 years) October 2005 - September 2009

Memberships

Society for Neuroscience, USA October 2006 – Present

Molecular and Cellular Cognition Society (MCCS), USA October 2006 – Present

Neuroscience Ireland January 2018 – Present

FENS-Kavli Alumni September 2023 – Present

FENS-Kavli Network of Excellence (Federation of European Neuroscience Societies and Kavli Foundation) September 2018 – August 2023

Eastern Psychological Association (EPA), USA February 2011 – March 2016

British Neuroscience Association (BNA), UK December 2005 – September 2009