Category: Episodic Memory

How the brain integrate recent experiences into existing memories ensures that memories contain the most recently available information?

Zaki, Y., Pennington, Z.T., Morales-Rodriguez, D. et al. Offline ensemble co-reactivation links memories across days. Nature (2024). https://doi.org/10.1038/s41586-024-08168-4

Abstract
“Memories are encoded in neural ensembles during learning1,2,3,4,5,6 and are stabilized by post-learning reactivation7,8,9,10,11,12,13,14,15,16,17. Integrating recent experiences into existing memories

Be the First to comment. Read More

How memory and language are linked at the single-cell level?

D. E. Dijksterhuis et al. ,Pronouns reactivate conceptual representations in human hippocampal neurons.Science 385,1478-1484(2024).DOI:10.1126/science.adr2813

Abstract
“During discourse comprehension, every new word adds to an evolving representation of meaning that accumulates over consecutive sentences and constrains the next words

Be the First to comment. Read More

How shifts in the composition of memory-encoding neuronal ensembles influence the evolution of a memory over time?

Vilde A. Kveim et al. ,Divergent recruitment of developmentally defined neuronal ensembles supports memory dynamics.Science 385,eadk0997(2024).DOI:10.1126/science.adk0997

Editor’s summary
Memories are not fixed; they evolve after encoding and their content can be updated upon changes in external or

Be the First to comment. Read More

How the hippocampus supports episodic and spatial memory at the same time?

Alexander Nitsch, Naomi de Haas, Mona M. Garvert, Christian F. Doeller. Integrating episodic and spatial context signals in the hippocampus. bioRxiv 2024.06.24.600445; doi: https://doi.org/10.1101/2024.06.24.600445

Abstract
Episodic and spatial memory are the two key components of the mnemonic system

Be the First to comment. Read More

How to build a bio-inspired hardware implementation of an analog spike-based hippocampus memory model?

Daniel Casanueva-Morato, Alvaro Ayuso-Martinez, Giacomo Indiveri, J P Dominguez-Morales,Gabriel Jimenez-Moreno. A bio-inspired hardware implementation of an analog spike-based hippocampus memory model. TechRxiv. April 03, 2024. DOI: 10.36227/techrxiv.171216721.14143739/v1

Abstract
“The need for processing at the edge the increasing amount of …

Be the First to comment. Read More

How does the brain select what to remember during sleep?

Wannan Yang, Chen Sun, Roman Huszár, Thomas Hainmueller, Kirill Kiselev, György Buzsáki. “Selection of experience for memory by hippocampal sharp wave ripple.” Science 383, 1478-1483 (2024).

Abstract
Experiences need to be tagged during learning for further

Be the First to comment. Read More

How hippocampal activity encodes numerous memories of specific events in life?

Selmaan N. Chettih,Emily L. Mackevicius,Stephanie Hale,Dmitriy Aronov. Barcoding of episodic memories in the hippocampus of a food-caching bird. Cell, March 29, 2024.  DOI:https://doi.org/10.1016/j.cell.2024.02.032

Summary
The hippocampus is critical for episodic memory. Although hippocampal activity represents place and …

Be the First to comment. Read More