Results 11 to 20 of about 636,488 (297)

Mesoscale calcium imaging in vivo: evolution and contribution to developmental neuroscience

open access: yesFrontiers in Neuroscience, 2023
Calcium imaging is commonly used to visualize neural activity in vivo. In particular, mesoscale calcium imaging provides large fields of view, allowing for the simultaneous interrogation of neuron ensembles across the neuraxis.
Teresa Guillamón-Vivancos   +4 more
doaj   +1 more source

Inferring spikes from calcium imaging in dopamine neurons.

open access: yesPLoS ONE, 2021
Calcium imaging has led to discoveries about neural correlates of behavior in subcortical neurons, including dopamine (DA) neurons. However, spike inference methods have not been tested in most populations of subcortical neurons.
Weston Fleming   +4 more
doaj   +1 more source

Calcium Imaging Perspectives in Plants [PDF]

open access: yesInternational Journal of Molecular Sciences, 2014
The calcium ion (Ca2+) is a versatile intracellular messenger. It provides dynamic regulation of a vast array of gene transcriptions, protein kinases, transcription factors and other complex downstream signaling cascades. For the past six decades, intracellular Ca2+ concentration has been significantly studied and still many studies are under way.
Kanchiswamy C. M.   +3 more
openaire   +4 more sources

Real-Time Neuron Detection and Neural Signal Extraction Platform for Miniature Calcium Imaging

open access: yesFrontiers in Computational Neuroscience, 2020
Real-time neuron detection and neural activity extraction are critical components of real-time neural decoding. In this paper, we propose a novel real-time neuron detection and activity extraction system using a dataflow framework to provide real-time ...
Yaesop Lee   +8 more
doaj   +1 more source

Quantitative analysis of 1300-nm three-photon calcium imaging in the mouse brain

open access: yeseLife, 2020
1300 nm three-photon calcium imaging has emerged as a useful technique to allow calcium imaging in deep brain regions. Application to large-scale neural activity imaging entails a careful balance between recording fidelity and perturbation to the sample.
Tianyu Wang   +8 more
doaj   +1 more source

Dendritic calcium signals in rhesus macaque motor cortex drive an optical brain-computer interface

open access: yesNature Communications, 2021
Surface two-photon imaging of the brain cannot access somatic calcium signals of neurons from deep layers of the macaque cortex. Here, the authors present an implant and imaging system for chronic motion-stabilized two-photon imaging of dendritic calcium
Eric M. Trautmann   +20 more
doaj   +1 more source

Long-term imaging of calcium dynamics using genetically encoded calcium indicators and automatic tracking of cultured cells

open access: yesBioTechniques, 2018
Calcium dynamics is crucial for many signaling pathways and cell functions. Understanding how calcium regulates cell function often requires long-term imaging of calcium dynamics.
Igor Razlivanov   +6 more
doaj   +1 more source

Calcium Imaging and Electrophysiology of hippocampal Activity under Anesthesia and natural Sleep in Mice

open access: yesScientific Data, 2022
Measurement(s) brain activity measurement • pupil dilation Technology Type(s) two-photon calcium imaging • local field potential recording • videography Factor Type(s) calcium imaging data • local field potentials Sample Characteristic - Organism Mus ...
Andrey Formozov   +6 more
doaj   +1 more source

Imaging single-channel calcium microdomains [PDF]

open access: yesCell Calcium, 2006
The Ca(2+) microdomains generated around the mouth of open ion channels represent the basic building blocks from which cytosolic Ca(2+) signals are constructed. Recent improvements in optical imaging techniques now allow these microdomains to be visualized as single channel calcium fluorescence transients (SCCaFTs), providing information about channel ...
Angelo, Demuro, Ian, Parker
openaire   +2 more sources

Neuronal Graphs: A Graph Theory Primer for Microscopic, Functional Networks of Neurons Recorded by Calcium Imaging

open access: yesFrontiers in Neural Circuits, 2021
Connected networks are a fundamental structure of neurobiology. Understanding these networks will help us elucidate the neural mechanisms of computation. Mathematically speaking these networks are “graphs”—structures containing objects that are connected.
Carl J. Nelson, Stephen Bonner
doaj   +1 more source

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