Highlights

(Courtesy of Ian Shih, UNC School of Medicine)
FIGURE 1. The experimental fMRI-fiber photometry platform could offer a deeper understanding of the dynamic properties of brain states and their relationship to behaviors.
Bio&Life Sciences

Spectrally resolved fiber photometry system enables exploring the brain’s networks

April 24, 2023
An optical fiber-based platform may lead to brain network-based treatment regimens for neuropsychiatric and neurological disorders.
(Courtesy of Salk Institute)
Salk researchers developed two wearable microscopes to image cellular activity in previously inaccessible regions of the spinal cord of moving mice in real time.
Bio&Life Sciences

Wearable microscopes help image cellular activity in spinal cords of on-the-move mice

April 5, 2023
Two tiny wearable microscopes for mice are generating high-resolution, high-contrast, multicolor images in real time—providing insight into signaling patterns within spinal cords...
(Courtesy of Osaka Metropolitan University)
A new system allows researchers to control a nematode worm with light-sensitive proteins (opsins) triggered by white, UV, and green.
Bio&Life Sciences

Controlling nematode behavior with light

Jan. 18, 2023
A new optogenetics-based system using various wavelengths of light is poised to significantly accelerate bio-related research.
(Courtesy of Abraham Beyene, Howard Hughes Medical Institute Janelia Research Campus)
A schematic of DopaFilm shows spatially resolved hotspots of activity (top) and DopaFilm’s fluorescent nanosensors glow brighter when exposed to dopamine (bottom).
Bio&Life Sciences

Material made of fluorescent nanosensors may boost neural discoveries

Oct. 26, 2022
By measuring the release of dopamine and other neurotransmitters, a composite material can help provide a better understanding of chemical neurotransmission.
(Courtesy of L. Fu et al.)
FIGURE 1. The construction of a multichannel fiber photometry system. A light beam from a 488 nm laser is coupled into all multimode fibers simultaneously by an objective. The emitted fluorescence is then collected by the same optical fibers and detected by a sCMOS camera (a). The fiber end faces on the sCMOS camera for the dual-channel mode (b) and four-channel mode (c).
Bio&Life Sciences

Advances in fiber photometry help demystify the brain

Aug. 9, 2022
Increasingly preferred over conventional brain imaging techniques, optical fiber photometry is allowing a better a grasp of the brain’s innerworkings. But this is only the beginning...
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Neuroscience

Optogenetics finds neural circuit that regulates alcohol consumption

The research pinpoints a specific neural circuit that, when altered, caused animal models to drink less alcohol.
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Microscopy

Two-photon imaging helps make discovery about light-sensitive cells in baby's retina

A combination of techniques, including two-photon imaging, found that these light-sensitive cells communicate as part of an interconnected network that gives the retina more light...
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Neuroscience

Tapered optical probe helps detect light in the brain

The new method allows the simultaneous collection of signals from various brain regions through the use of a tapered optical probe.
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Neuroscience

Optical nanoprobes could have use in monitoring neural activity

The nanoprobes could show how neural circuits function at an unprecedented scale by monitoring large numbers of individual neurons simultaneously.