Learning produces a hippocampal cognitive map in the form of an orthogonalized state machine

W Sun, J Winnubst, M Natrajan, C Lai, K Kajikawa… - bioRxiv, 2023 - biorxiv.org
Cognitive maps confer animals with flexible intelligence by representing spatial, temporal,
and abstract relationships that can be used to shape thought, planning, and behavior …

Transformer as a hippocampal memory consolidation model based on NMDAR-inspired nonlinearity

DK Kim, J Kwon, M Cha, C Lee - Advances in Neural …, 2024 - proceedings.neurips.cc
The hippocampus plays a critical role in learning, memory, and spatial representation,
processes that depend on the NMDA receptor (NMDAR). Inspired by recent findings that …

[HTML][HTML] Beyond correlation: optimal transport metrics for characterizing representational stability and remapping in neurons encoding spatial memory

A Aoun, O Shetler, R Raghuraman… - Frontiers in Cellular …, 2024 - frontiersin.org
Introduction Spatial representations in the entorhinal cortex (EC) and hippocampus (HPC)
are fundamental to cognitive functions like navigation and memory. These representations …

[HTML][HTML] Calcium imaging reveals fast tuning dynamics of hippocampal place cells and CA1 population activity during free exploration task in mice

VP Sotskov, NA Pospelov, VV Plusnin… - International journal of …, 2022 - mdpi.com
Hippocampal place cells are a well-known object in neuroscience, but their place field
formation in the first moments of navigating in a novel environment remains an ill-defined …

[HTML][HTML] Estimating neuronal firing density: A quantitative analysis of firing rate map algorithms

RM Grieves - PLOS Computational Biology, 2023 - journals.plos.org
The analysis of neurons that exhibit receptive fields dependent on an organism's spatial
location, such as grid, place or boundary cells typically begins by mapping their activity in …

[HTML][HTML] BTSP, not STDP, Drives Shifts in Hippocampal Representations During Familiarization

AD Madar, C Dong, MEJ Sheffield - bioRxiv, 2023 - ncbi.nlm.nih.gov
Synaptic plasticity is widely thought to support memory storage in the brain, but the rules
determining impactful synaptic changes in-vivo are not known. We considered the trial-by …

Insights in neuronal tuning: Navigating the statistical challenges of autocorrelation and missing variables

F Nevjen, B Dunn - bioRxiv, 2023 - biorxiv.org
Recent advances in neuroscience have improved our ability to investigate neural activity by
making it possible to measure vast amounts of neurons and behavioral variables, and …

[HTML][HTML] Hippocampal sequences span experience relative to rewards

M Sosa, MH Plitt, LM Giocomo - bioRxiv, 2023 - ncbi.nlm.nih.gov
Hippocampal place cells fire in sequences that span spatial environments and non-spatial
modalities, suggesting that hippocampal activity can anchor to the most behaviorally salient …

Disorganized Inhibitory Dynamics and Functional Connectivity in Hippocampal area CA1 of 22q11. 2 Deletion Mutant Mice

SA Herrlinger, B Rao, MEC Paredes, AL Tuttman… - bioRxiv, 2024 - biorxiv.org
Individuals with the 22q11. 2 deletion syndrome, one of the strongest genetic risk factors for
schizophrenia, demonstrate cognitive impairments such as episodic memory dysfunction …

[HTML][HTML] Tracking longitudinal population dynamics of single neuronal calcium signal using SCOUT

KG Johnston, SF Grieco, H Zhang, S Jin, X Xu… - Cell reports methods, 2022 - cell.com
In vivo calcium imaging enables simultaneous recording of large neuronal ensembles
engaged in complex operations. Many experiments require monitoring and identification of …