A synaptic framework for the persistence of memory engrams

P Rao-Ruiz, E Visser, M Mitrić, AB Smit… - Frontiers in synaptic …, 2021 - frontiersin.org
The ability to store and retrieve learned information over prolonged periods of time is an
essential and intriguing property of the brain. Insight into the neurobiological mechanisms …

From ensembles to meta-ensembles: Specific reward encoding by correlated network activity

C Körber, WH Sommer - Frontiers in Behavioral Neuroscience, 2022 - frontiersin.org
Neuronal ensembles are local, sparsely distributed populations of neurons that are reliably
re-activated by a specific stimulus, context or task. Such discrete cell populations can be …

Learning and attention increase visual response selectivity through distinct mechanisms

J Poort, KA Wilmes, A Blot, A Chadwick, M Sahani… - Neuron, 2022 - cell.com
Selectivity of cortical neurons for sensory stimuli can increase across days as animals learn
their behavioral relevance and across seconds when animals switch attention. While both …

[HTML][HTML] Individual differences in prelimbic neural representation of food and cocaine seeking

JT Glanzberg, AJ Denman, NJ Beacher, MC Broomer… - Cell reports, 2024 - cell.com
The prelimbic cortex is involved in operant reward seeking. However, the precise nature of
its activity patterns and whether/how they differ between different types of rewards are …

[HTML][HTML] Quantification of prefrontal cortical neuronal ensembles following conditioned fear learning in a Fos-LacZ transgenic rat with photoacoustic imaging in Vivo

JI Matchynski, TS Cilley, N Sadik, KM Makki, M Wu… - Photoacoustics, 2023 - Elsevier
Understanding the neurobiology of complex behaviors requires measurement of activity in
the discrete population of active neurons, neuronal ensembles, which control the behavior …

Specialized coding patterns among dorsomedial prefrontal neuronal ensembles predict conditioned reward seeking

RI Grant, EM Doncheck, KM Vollmer, KT Winston… - Elife, 2021 - elifesciences.org
Non-overlapping cell populations within dorsomedial prefrontal cortex (dmPFC), defined by
gene expression or projection target, control dissociable aspects of reward seeking through …

Inactivation of the infralimbic cortex decreases discriminative stimulus-controlled relapse to cocaine seeking in rats

R Madangopal, LA Ramsey, SJ Weber… - …, 2021 - nature.com
Persistent susceptibility to cue-induced relapse is a cardinal feature of addiction.
Discriminative stimuli (DSs) are one type of drug-associated cue that signal drug availability …

FosGFP expression does not capture a sensory learning-related engram in superficial layers of mouse barrel cortex

J Lee, J Urban-Ciecko, E Park, M Zhu… - Proceedings of the …, 2021 - National Acad Sciences
Immediate-early gene (IEG) expression has been used to identify small neural ensembles
linked to a particular experience, based on the principle that a selective subset of activated …

Formation and fate of an engram in the lateral amygdala supporting a rewarding memory in mice

A Park, AD Jacob, HL Hsiang, PW Frankland… - …, 2023 - nature.com
Memories allow past experiences to guide future decision making and behavior. Sparse
ensembles of neurons, known as engrams, are thought to store memories in the brain. Most …

Imaging of C-fos activity in neurons of the mouse parietal association cortex during acquisition and retrieval of associative fear memory

OI Ivashkina, AM Gruzdeva, MA Roshchina… - International journal of …, 2021 - mdpi.com
The parietal cortex of rodents participates in sensory and spatial processing, movement
planning, and decision-making, but much less is known about its role in associative learning …