Two-photon calcium imaging of neuronal activity

C Grienberger, A Giovannucci, W Zeiger… - Nature Reviews …, 2022 - nature.com
In vivo two-photon calcium imaging (2PCI) is a technique used for recording neuronal
activity in the intact brain. It is based on the principle that, when neurons fire action …

Fluorescence imaging of large-scale neural ensemble dynamics

TH Kim, MJ Schnitzer - Cell, 2022 - cell.com
Recent progress in fluorescence imaging allows neuroscientists to observe the dynamics of
thousands of individual neurons, identified genetically or by their connectivity, across …

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 …

[HTML][HTML] Large-scale two-photon calcium imaging in freely moving mice

W Zong, HA Obenhaus, ER Skytøen, H Eneqvist… - Cell, 2022 - cell.com
We developed a miniaturized two-photon microscope (MINI2P) for fast, high-resolution,
multiplane calcium imaging of over 1,000 neurons at a time in freely moving mice. With a …

Neural dynamics underlying associative learning in the dorsal and ventral hippocampus

JS Biane, MA Ladow, F Stefanini, SP Boddu… - Nature …, 2023 - nature.com
Animals associate cues with outcomes and update these associations as new information is
presented. This requires the hippocampus, yet how hippocampal neurons track changes in …

Fos ensembles encode and shape stable spatial maps in the hippocampus

NL Pettit, EL Yap, ME Greenberg, CD Harvey - Nature, 2022 - nature.com
In the hippocampus, spatial maps are formed by place cells while contextual memories are
thought to be encoded as engrams,,,,–. Engrams are typically identified by expression of the …

Active experience, not time, determines within-day representational drift in dorsal CA1

D Khatib, A Ratzon, M Sellevoll, O Barak, G Morris… - Neuron, 2023 - cell.com
Memories of past events can be recalled long after the event, indicating stability. But new
experiences are also integrated into existing memories, indicating plasticity. In the …

CaImAn an open source tool for scalable calcium imaging data analysis

A Giovannucci, J Friedrich, P Gunn, J Kalfon, BL Brown… - elife, 2019 - elifesciences.org
Advances in fluorescence microscopy enable monitoring larger brain areas in-vivo with finer
time resolution. The resulting data rates require reproducible analysis pipelines that are …

Efficient and accurate extraction of in vivo calcium signals from microendoscopic video data

P Zhou, SL Resendez, J Rodriguez-Romaguera… - elife, 2018 - elifesciences.org
In vivo calcium imaging through microendoscopic lenses enables imaging of previously
inaccessible neuronal populations deep within the brains of freely moving animals …

[HTML][HTML] Vagus nerve stimulation drives selective circuit modulation through cholinergic reinforcement

S Bowles, J Hickman, X Peng, WR Williamson… - Neuron, 2022 - cell.com
Vagus nerve stimulation (VNS) is a neuromodulation therapy for a broad and expanding set
of neurologic conditions. However, the mechanism through which VNS influences central …