197 results found
    1. Neuroscience

    Chronic 2P-STED imaging reveals high turnover of dendritic spines in the hippocampus in vivo

    Thomas Pfeiffer et al.
    Super-resolution STED microscopy is demonstrated for the first time in the deeply embedded mouse hippocampus in vivo, revealing direct evidence for an unprecedentedly high level of synapse remodeling in a brain structure closely associated with memory processing.
    1. Neuroscience

    Retinotectal circuitry of larval zebrafish is adapted to detection and pursuit of prey

    Dominique Förster et al.
    The retinotectal map in zebrafish exhibits location-specific, functional specializations to match prey object movement in the visual field during the hunting sequence.
    1. Neuroscience

    Optogenetic strategies for high-efficiency all-optical interrogation using blue-light-sensitive opsins

    Angelo Forli et al.
    A new soma-targeted variant of the large-conductance blue-light-sensitive opsin CoChR combined with advanced optical stimulation methods allows high-efficiency all-optical neuronal imaging and stimulation in mouse brain in vivo.
    1. Neuroscience

    Reconciling functional differences in populations of neurons recorded with two-photon imaging and electrophysiology

    Joshua H Siegle et al.
    Discrepancies between functional responses measured with electrophysiology and calcium imaging can be largely reconciled by considering the spike-to-calcium transfer function, neuronal sampling bias, and cluster merging artifacts during spike sorting.
    1. Neuroscience

    Simultaneous two-photon imaging and two-photon optogenetics of cortical circuits in three dimensions

    Weijian Yang et al.
    An all-optical 3D two-photon imaging and photostimulation platform was demonstrated, with the capability to precisely stimulate a large group of cells in mice cortex in vivo with low laser power.
    1. Cell Biology
    2. Neuroscience

    Glial Ca2+signaling links endocytosis to K+ buffering around neuronal somas to regulate excitability

    Shirley Weiss et al.
    An unbiased genetic screen in Drosophila provides evidence for a direct link between glial Ca2+ 25 signaling and classical functions of glia in buffering external K+ as a mechanism to regulate neuronal excitability.
    1. Neuroscience

    How many neurons are sufficient for perception of cortical activity?

    Henry WP Dalgleish et al.
    Targeted optogenetic activation of small ensembles of neurons is sufficient to trigger a behavioral report while recruiting matched network suppression, suggesting exquisite sensitivity despite network mechanisms that maintain sparseness.
    1. Neuroscience

    An extended retinotopic map of mouse cortex

    Jun Zhuang et al.
    An expanded map of mouse cortex reveals the expansion of retinotopic organization into barrel and retrosplenial cortices.
    1. Neuroscience

    Sources of widefield fluorescence from the brain

    Jack Waters
    Widefield fluorescence from the brain arises from greater depth and area than typically appreciated and is usually a weighted average across cortical columns and often more than one cortical area.
    1. Developmental Biology
    2. Immunology and Inflammation

    Sex difference in pathology of the ageing gut mediates the greater response of female lifespan to dietary restriction

    Jennifer C Regan et al.
    In the fruit fly Drosophila melanogaster, stem cell activity ages female guts but not male guts; furthermore, males with feminized guts develop pathologies but gain an increase in lifespan through dietary restriction.

Refine your results by:

Type
Research categories