Time and experience differentially affect distinct aspects of hippocampal representational drift

N Geva, D Deitch, A Rubin, Y Ziv - Neuron, 2023 - cell.com
Hippocampal activity is critical for spatial memory. Within a fixed, familiar environment,
hippocampal codes gradually change over timescales of days to weeks—a phenomenon …

Adult-born granule cells facilitate remapping of spatial and non-spatial representations in the dentate gyrus

SN Tuncdemir, AD Grosmark, H Chung, VM Luna… - Neuron, 2023 - cell.com
Adult-born granule cells (abGCs) have been implicated in memory discrimination through a
neural computation known as pattern separation. Here, using in vivo Ca 2+ imaging, we …

Organization of hippocampal CA3 into correlated cell assemblies supports a stable spatial code

L Sheintuch, N Geva, D Deitch, A Rubin, Y Ziv - Cell reports, 2023 - cell.com
Hippocampal subfield CA3 is thought to stably store memories in assemblies of recurrently
connected cells functioning as a collective. However, the collective hippocampal coding …

Novel off-context experience constrains hippocampal representational drift

G Elyasaf, A Rubin, Y Ziv - Current Biology, 2024 - cell.com
The hippocampus forms unique neural representations for distinct experiences, supporting
the formation of different memories. 1, 2, 3, 4, 5, 6 Hippocampal representations gradually …

Drift of neural ensembles driven by slow fluctuations of intrinsic excitability

G Delamare, Y Zaki, DJ Cai, C Clopath - Elife, 2024 - elifesciences.org
Representational drift refers to the dynamic nature of neural representations in the brain
despite the behavior being seemingly stable. Although drift has been observed in many …

Adult neurogenesis improves spatial information encoding in the mouse hippocampus

MA Frechou, SS Martin, KD McDermott… - Nature …, 2024 - nature.com
Adult neurogenesis is a unique form of neuronal plasticity in which newly generated
neurons are integrated into the adult dentate gyrus in a process that is modulated by …

Exploring the interplay between running exercises, microbial diversity, and tryptophan metabolism along the microbiota-gut-brain axis

A Vazquez-Medina, N Rodriguez-Trujillo… - Frontiers in …, 2024 - frontiersin.org
The emergent recognition of the gut-brain axis connection has shed light on the role of the
microbiota in modulating the gut-brain axis's functions. Several microbial metabolites, such …

Increased flexibility of CA3 memory representations following environmental enrichment

S Ventura, S Duncan, JA Ainge - Current Biology, 2024 - cell.com
Environmental enrichment (EE) improves memory, particularly the ability to discriminate
similar past experiences. 1, 2, 3, 4, 5, 6 The hippocampus supports this ability via pattern …

[HTML][HTML] 空间导航能力个体差异的多层次形成机制

张凤翔, 陈美璇, 蒲艺, 孔祥祯 - 心理科学进展, 2023 - journal.psych.ac.cn
空间导航活动时刻在我们的生活中发生, 导航能力在人群中表现出显著的个体差异,
其衰退也是阿尔兹海默症等认知障碍脑疾病的重要早期行为学表现. 以往研究考察了空间导航 …

Schaffer commissural inputs regulate the stability of CA1 spatial representation

C Rais, M Maheu, JS Wiegert - bioRxiv, 2025 - biorxiv.org
Neuronal representations of the world are dynamic. A striking example is the rapid
remapping of the hippocampal spatial code, which occurs even when the environment and …