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Open AccessJournal ArticleDOI

Mapping brain circuitry with a light microscope.

TLDR
An overview of the present state and future opportunities in charting long-range and local connectivity in the entire mouse brain and in linking brain circuits to function is presented.
Abstract
The beginning of the 21st century has seen a renaissance in light microscopy and anatomical tract tracing that together are rapidly advancing our understanding of the form and function of neuronal circuits. The introduction of instruments for automated imaging of whole mouse brains, new cell type–specific and trans-synaptic tracers, and computational methods for handling the whole-brain data sets has opened the door to neuroanatomical studies at an unprecedented scale. We present an overview of the present state and future opportunities in charting long-range and local connectivity in the entire mouse brain and in linking brain circuits to function.

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Journal ArticleDOI

CLARITY for mapping the nervous system

TL;DR: Hydrogel-based structures can be built from within biological tissue to allow subsequent removal of lipids without mechanical disassembly of the tissue, creating a tissue-hydrogel hybrid that is physically stable, that preserves fine structure, proteins and nucleic acids, and that is permeable to both visible-spectrum photons and exogenous macromolecules.
Journal ArticleDOI

Neural Networks of the Mouse Neocortex

TL;DR: Cortico-cortical connectivity map and connectivity matrices revealed that the entire cortex is organized into four somatic sensorimotor, two medial, and two lateral subnetworks that display unique topologies and can interact through select cortical areas.
Journal ArticleDOI

Advanced CUBIC protocols for whole-brain and whole-body clearing and imaging.

TL;DR: A protocol for advanced CUBIC (Clear, Unobstructed Brain/Body Imaging Cocktails and Computational analysis) is described in this paper, which enables simple and efficient organ clearing, rapid imaging by light-sheet microscopy and quantitative imaging analysis of multiple samples.
PatentDOI

Transparent, flexible, low-noise graphene electrodes for simultaneous electrophysiology and neuro-imaging

TL;DR: A transparent, flexible neural electrode technology based on graphene is reported, which enables simultaneous optical imaging and electrophysiological recording and may pave the way for high spatio-temporal resolution electro-optic mapping of the dynamic neuronal activity.
Journal ArticleDOI

A Whole-Brain Atlas of Inputs to Serotonergic Neurons of the Dorsal and Median Raphe Nuclei

TL;DR: A comprehensive whole-brain atlas defining the monosynaptic inputs onto forebrain-projecting serotonergic neurons of dorsal versus median raphe based on a genetically restricted transsynaptic retrograde tracing strategy is generated.
References
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Journal ArticleDOI

Ultramicroscopy: three-dimensional visualization of neuronal networks in the whole mouse brain.

TL;DR: This new technique allows optical sectioning of fixed mouse brains with cellular resolution and can be used to detect single GFP-labeled neurons in excised mouse hippocampi and is ideally suited for high-throughput phenotype screening of transgenic mice and thus will benefit the investigation of disease models.
Journal ArticleDOI

An anterograde neuroanatomical tracing method that shows the detailed morphology of neurons, their axons and terminals: Immunohistochemical localization of an axonally transported plant lectin, Phaseolus vulgaris-leucoagglutinin (PHA-L).

TL;DR: A new neuroanatomical method for tracing connections in the central nervous system based on the anterograde axonal transport of the kidney bean lectin, Phaseolus vulgaris-leucoagglutinin (PHA-L) is described, which offers several advantages over present techniques.
Journal ArticleDOI

Monosynaptic Restriction of Transsynaptic Tracing from Single, Genetically Targeted Neurons

TL;DR: A transsynaptic tracer that crosses only one synaptic step is presented, unambiguously identifying cells directly presynaptic to the starting population, and should enable a far more detailed understanding of neural connectivity than has previously been possible.
Journal ArticleDOI

Laminar origins and terminations of cortical connections of the occipital lobe in the rhesus monkey.

TL;DR: Different cortical projection systems are characterized by specific laminar distributions of efferent terminations as well as of their neurons of origin.
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