Engram neurons: Encoding, consolidation, retrieval, and forgetting of memory

A Guskjolen, MS Cembrowski - Molecular psychiatry, 2023 - nature.com
Tremendous strides have been made in our understanding of the neurobiological substrates
of memory–the so-called memory “engram”. Here, we integrate recent progress in the …

The role of inhibitory circuits in hippocampal memory processing

L Topolnik, S Tamboli - Nature Reviews Neuroscience, 2022 - nature.com
GABAergic inhibitory circuits play an essential role in coordinating various hippocampal
functions. Several decades of work dedicated to a thorough characterization of hippocampal …

Brain-wide mapping reveals that engrams for a single memory are distributed across multiple brain regions

DS Roy, YG Park, ME Kim, Y Zhang, SK Ogawa… - Nature …, 2022 - nature.com
Neuronal ensembles that hold specific memory (memory engrams) have been identified in
the hippocampus, amygdala, or cortex. However, it has been hypothesized that engrams of …

Hippocampo-cortical circuits for selective memory encoding, routing, and replay

RE Harvey, HL Robinson, C Liu, A Oliva… - Neuron, 2023 - cell.com
Traditionally considered a homogeneous cell type, hippocampal pyramidal cells have been
recently shown to be highly diverse. However, how this cellular diversity relates to the …

The neurobiology of fear generalization

A Asok, ER Kandel, JB Rayman - Frontiers in behavioral …, 2019 - frontiersin.org
The generalization of fear memories is an adaptive neurobiological process that promotes
survival in complex and dynamic environments. When confronted with a potential threat, an …

Hippocampal-amygdala memory circuits govern experience-dependent observational fear

JI Terranova, J Yokose, H Osanai, WD Marks… - Neuron, 2022 - cell.com
The empathic ability to vicariously experience the other's fearful situation, a process called
observational fear (OF), is critical to survive in nature and function in society. OF can be …

GABAergic neuronal IL-4R mediates T cell effect on memory

J Herz, Z Fu, K Kim, T Dykstra, M Wall, H Li… - Neuron, 2021 - cell.com
Mechanisms governing how immune cells and their derived molecules impact homeostatic
brain function are still poorly understood. Here, we elucidate neuronal mechanisms …

[HTML][HTML] Living things are not (20th century) machines: updating mechanism metaphors in light of the modern science of machine behavior

J Bongard, M Levin - Frontiers in Ecology and Evolution, 2021 - frontiersin.org
One of the most useful metaphors for driving scientific and engineering progress has been
that of the “machine”. Much controversy exists about the applicability of this concept in the …

Discrete subicular circuits control generalization of hippocampal seizures

F Fei, X Wang, C Xu, J Shi, Y Gong, H Cheng… - Nature …, 2022 - nature.com
Epilepsy is considered a circuit-level dysfunction associated with imbalanced excitation-
inhibition, it is therapeutically necessary to identify key brain regions and related circuits in …

Conditional and unconditional components of aversively motivated freezing, flight and darting in mice

JM Trott, AN Hoffman, I Zhuravka, MS Fanselow - Elife, 2022 - elifesciences.org
Fear conditioning is one of the most frequently used laboratory procedures for modeling
learning and memory generally, and anxiety disorders in particular. The conditional …