367 results found
    1. Cell Biology
    2. Neuroscience

    2018 Gairdner Awards: The past, present and future of light-gated ion channels and optogenetics

    Sheena A Josselyn
    Research into light-gated ion channels called channelrhodospins laid the foundations for the development of optogenetics, a technique that has gone on to revolutionize neuroscience.
    1. Cell Biology
    2. Developmental Biology

    Optogenetic dissection of mitotic spindle positioning in vivo

    Lars-Eric Fielmich et al.
    New germline gene expression, knockout, and optogenetic tools reveal essential roles for Gα-GPR-1,2/Pins as a regulatable membrane anchor and LIN-5/NuMA as an activator of cortical dynein in mitotic spindle positioning.
    1. Neuroscience

    Reverse-correlation analysis of navigation dynamics in Drosophila larva using optogenetics

    Luis Hernandez-Nunez et al.
    Optogenetic stimulation of odor- and taste-sensing neurons of the fruit fly larva combined with reverse-correlation analysis has been used to build mathematical models that predict navigational behavior.
    1. Neuroscience

    Targeted cortical reorganization using optogenetics in non-human primates

    Azadeh Yazdan-Shahmorad et al.
    Focal optogenetic stimulation strengthens functional connectivity between primary somatosensory and motor cortices in macaques, in a manner consistent with a Hebbian model of stimulus-driven plasticity.
    1. Neuroscience

    Focal optogenetic suppression in macaque area MT biases direction discrimination and decision confidence, but only transiently

    Christopher R Fetsch et al.
    Perceptual decision making in monkeys can be manipulated by using optogenetics to inactivate functional subregions of visual cortex, but the brain has a capacity to compensate for this perturbation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Near-infrared photoactivatable control of Ca2+ signaling and optogenetic immunomodulation

    Lian He et al.
    A near-infrared light-stimulable optogenetic platform enables remote and wireless manipulation of calcium signaling and immune responses both in vitro and in vivo to achieve tailored function.
    1. Cell Biology

    Controlling fertilization and cAMP signaling in sperm by optogenetics

    Vera Jansen et al.
    Optogenetics is a non-invasive way to study cAMP signaling in sperm cells, which is able to control sperm motility and fertilization.
    1. Neuroscience

    Optogenetic feedback control of neural activity

    Jonathan P Newman et al.
    The 'Optoclamp' is a feedback control technology that enables precise, continuously updated, closed-loop optical control of neural firing both in vitro and in vivo.
    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

    Transient inhibition and long-term facilitation of locomotion by phasic optogenetic activation of serotonin neurons

    Patrícia A Correia et al.
    Phasic activation of dorsal raphe serotonin neurons transiently inhibits locomotion without influencing anxiety or producing reinforcement, but when repeated over many days a long-term facilitation of locomotion is produced.

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