The generative grammar of the brain: a critique of internally generated representations

G Dragoi - Nature Reviews Neuroscience, 2024 - nature.com
The past decade of progress in neurobiology has uncovered important organizational
principles for network preconfiguration and neuronal selection that suggest a generative …

[HTML][HTML] Accounting for multiscale processing in adaptive real-world decision-making via the hippocampus

D Mehrotra, L Dubé - Frontiers in Neuroscience, 2023 - frontiersin.org
For adaptive real-time behavior in real-world contexts, the brain needs to allow past
information over multiple timescales to influence current processing for making choices that …

Excitability mediates allocation of pre-configured ensembles to a hippocampal engram supporting contextual conditioned threat in mice

AJ Mocle, AI Ramsaran, AD Jacob, AJ Rashid… - Neuron, 2024 - cell.com
Little is understood about how engrams, sparse groups of neurons that store memories, are
formed endogenously. Here, we combined calcium imaging, activity tagging, and …

Cortical reactivations predict future sensory responses

ND Nguyen, A Lutas, O Amsalem, J Fernando… - Nature, 2024 - nature.com
Many theories of offline memory consolidation posit that the pattern of neurons activated
during a salient sensory experience will be faithfully reactivated, thereby stabilizing the …

[HTML][HTML] Protosequences in human cortical organoids model intrinsic states in the developing cortex

T van der Molen, A Spaeth, M Chini, J Bartram… - bioRxiv, 2023 - ncbi.nlm.nih.gov
Neuronal firing sequences are thought to be the basic building blocks of neural coding and
information broadcasting within the brain. However, when sequences emerge during …

A bio-inspired implementation of a sparse-learning spike-based hippocampus memory model

D Casanueva-Morato, A Ayuso-Martinez… - … on Emerging Topics …, 2024 - ieeexplore.ieee.org
The brain is capable of solving complex problems simply and efficiently, far surpassing
modern computers. In this regard, neuromorphic engineering focuses on mimicking the …

[HTML][HTML] Intrinsic dynamics of randomly clustered networks generate place fields and preplay of novel environments

J Breffle, H Germaine, JD Shin, SP Jadhav, P Miller - bioRxiv, 2023 - ncbi.nlm.nih.gov
During both sleep and awake immobility, hippocampal place cells reactivate time-
compressed versions of sequences representing recently experienced trajectories in a …

Hippocampal sharp wave ripples and coincident cortical ripples orchestrate human semantic networks

A Mishra, S Akkol, E Espinal, N Markowitz, G Tostaeva… - bioRxiv, 2024 - biorxiv.org
Episodic memory function is predicated upon the precise coordination between the
hippocampus and widespread cortical regions. However, our understanding of the neural …

Dual roles of idling moments in past and future memories

K Inokuchi, K Ghandour, T Haga, N Ohkawa… - bioRxiv, 2024 - biorxiv.org
Every day, we experience new daily episodes and store new memories. Although memories
are stored in corresponding engram cells, how different sets of engram cells are selected for …

Contributions of the dentate gyrus to episodic and spatial memory

LK Wilmerding - 2024 - search.proquest.com
Animals learn from past experience to guide future behavior and improve survival. This
ability relies in part on specific episodic memories of past events encoded by neuronal …