722 results found
    1. Neuroscience

    Direct extraction of signal and noise correlations from two-photon calcium imaging of ensemble neuronal activity

    Anuththara Rupasinghe et al.
    An inference paradigm for extracting neuronal correlations from two-photon imaging data, without requiring intermediate spike deconvolution, provides significant performance gains over existing methods as demonstrated by theoretical analysis, simulation studies, and real-data applications.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

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

    Tianyu Wang et al.
    Quantitative experiments and analysis determine the limit of excitation power of 1300-nm three-photon microscopy, and the imaging depth where three-photon outperforms two-photon for calcium imaging in the mouse brain.
    1. Neuroscience

    Two-photon calcium imaging of the medial prefrontal cortex and hippocampus without cortical invasion

    Masashi Kondo et al.
    Establishment of two-photon imaging with a 1100-nm laser, which underfills the objective's back aperture, detects activity of multiple neurons in the prelimbic area and hippocampal CA1 region of the intact mouse brain.
    1. Neuroscience

    CaImAn an open source tool for scalable calcium imaging data analysis

    Andrea Giovannucci et al.
    CaImAn is an open-software package that equips the neuroscience community with a set of turnkey, fast and scalable solutions to pre-processing problems arising in single cell calcium imaging data analysis.
    1. Neuroscience

    Complexity of frequency receptive fields predicts tonotopic variability across species

    Quentin Gaucher et al.
    The A1 of ferrets and mice show similar tonotopic organizations, with neurons preferring a single frequency being more precisely organized into a tonotopic map than multipeaked neurons.
    1. Neuroscience

    Relationship between simultaneously recorded spiking activity and fluorescence signal in GCaMP6 transgenic mice

    Lawrence Huang et al.
    Simultaneous calcium imaging and cell-attached recording in GCaMP6 transgenic mice in vivo reveals spiking-fluorescence relationship that supports more refined inference of neuronal activities from calcium imaging data.
    1. Neuroscience

    Adult-born neurons facilitate olfactory bulb pattern separation during task engagement

    Wankun L Li et al.
    Adult-born neurons in the olfactory bulb allow state-dependent pattern separation of representations of similar odorants.
    1. Neuroscience

    Dendritic coincidence detection in Purkinje neurons of awake mice

    Christopher J Roome, Bernd Kuhn
    Simultaneous voltage and calcium two-photon imaging of Purkinje neuron dendrites in awake mice reveals multiple interplaying mechanisms underlying sensory-evoked dendritic coincidence detection of parallel fiber and climbing fiber input.
    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. Neuroscience

    Interpreting wide-band neural activity using convolutional neural networks

    Markus Frey et al.
    A novel deep-learning framework shows how to interpret and decode raw neural recordings, avoiding the need for strong prior hypotheses, revealing a novel representation of head direction.

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