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 …

Encouraging an excitable brain state: mechanisms of brain repair in stroke

MT Joy, ST Carmichael - Nature Reviews Neuroscience, 2021 - nature.com
Stroke induces a plastic state in the brain. This period of enhanced plasticity leads to the
sprouting of new axons, the formation of new synapses and the remapping of sensory-motor …

Fast-spiking parvalbumin-positive interneurons in brain physiology and Alzheimer's disease

S Hijazi, AB Smit, RE van Kesteren - Molecular Psychiatry, 2023 - nature.com
Fast-spiking parvalbumin (PV) interneurons are inhibitory interneurons with unique
morphological and functional properties that allow them to precisely control local circuitry …

The tie that binds: temporal coding and adaptive emotion

J Wang, A Tambini, RC Lapate - Trends in Cognitive Sciences, 2022 - cell.com
Emotions are temporally dynamic, but the persistence of emotions outside of their
appropriate temporal context is detrimental to health and well-being. Yet, precisely how …

[HTML][HTML] Infralimbic cortex functioning across motivated behaviors: Can the differences be reconciled?

KE Nett, RT LaLumiere - Neuroscience & Biobehavioral Reviews, 2021 - Elsevier
The rodent infralimbic cortex (IL) is implicated in higher order executive functions such as
reward seeking and flexible decision making. However, the precise nature of its role in these …

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 …

[HTML][HTML] Stable continual learning through structured multiscale plasticity manifolds

P Mishra, R Narayanan - Current opinion in neurobiology, 2021 - Elsevier
Biological plasticity is ubiquitous. How does the brain navigate this complex plasticity space,
where any component can seemingly change, in adapting to an ever-changing …

Local memory allocation recruits memory ensembles across brain regions

A Lavi, M Sehgal, AF de Sousa, D Ter-Mkrtchyan… - Neuron, 2023 - cell.com
Memories are thought to be stored in ensembles of neurons across multiple brain regions.
However, whether and how these ensembles are coordinated at the time of learning …

The role of neuronal excitability, allocation to an engram and memory linking in the behavioral generation of a false memory in mice

JMH Lau, AJ Rashid, AD Jacob, PW Frankland… - Neurobiology of learning …, 2020 - Elsevier
Memory is a constructive, not reproductive, process that is prone to errors. Errors in memory,
though, may originate from normally adaptive memory processes. At the extreme of memory …

Steering molecular activity with optogenetics: recent advances and perspectives

TJ Oh, H Fan, SS Skeeters, K Zhang - Advanced biology, 2021 - Wiley Online Library
Optogenetics utilizes photosensitive proteins to manipulate the localization and interaction
of molecules in living cells. Because light can be rapidly switched and conveniently confined …