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The trans-Tango genetic strategy, which mediates signaling across synapses, was adapted to identify neural connections in a vertebrate nervous system, with synaptic partners confirmed in the retina and spinal cord of larval zebrafish.
Rastermap is an analysis method for exploring dynamical and spatial relationships among hundreds to hundreds of thousands of neurons. The algorithm uses a fast optimization technique to discover complex neural patterns, such as sequences.
The authors present DPAD, a deep learning method, for dynamical neural–behavioral modeling. It dissociates behaviorally relevant neural dynamics, better predicts neural–behavioral data and reveals insight into where their nonlinearities can be isolated.
Dong et al. developed and validated κLight, δLight and µLight, a suite of genetically encoded opioid peptide sensors for probing opioid drugs and brain-region/circuit-specific opioid release in behaving animals.
A probe incorporating 1,024 simultaneously recorded channels with shank length up to 90 mm exhibits high chronic recording stability and enables brain-wide large-scale neural population recordings with single-cell resolution in non-human primates.
Intersectional adeno-associated viruses are important for neuroscience research but can be limited by complex and bulky design parameters. Hughes et al. present a unique and space-saving approach that simplifies toolkit development and provides expanded functionality.
This paper presents Simple Behavioral Analysis (SimBA), an open-source platform for automated, explainable machine learning analysis of behavior. SimBA comes with extensive documentation, a graphical interface and an active community and works with any organism tracked by pose estimation.
Neural activity does not always lie in a low-dimensional subspace. The authors extend this classic view to show that task-relevant information is distributed across multiple covariability classes and propose a new method, sliceTCA, to disentangle them.
A real-time analysis system was developed for an up to 500-megabyte-per-second image stream. This system can extract activities from up to 100,000 neurons in larval zebrafish brains and enables closed-loop perturbations of brain-wide neural dynamics at cellular resolution.
Rabies-virus-based tracing is a widely used technique for mapping neural circuitry, but its cytotoxicity has limited its applications. Here Jin et al. present a second-generation system with minimal toxicity, using double-deletion-mutant rabies viruses.
