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307 results found
    1. Neuroscience

    The contribution of temporal coding to odor coding and odor perception in humans

    Ofer Perl et al.
    Human participants fail to discriminate between odor sequences that activate the same neurons at different orders, pointing against a substantial role for neuron activation time in the odor code.
    1. Computational and Systems Biology
    2. Neuroscience

    Antagonism in olfactory receptor neurons and its implications for the perception of odor mixtures

    Gautam Reddy et al.
    Computational and theoretical analyses offer novel and unexpected insight into how complex, naturally occurring odor mixtures are parsed and normalized at the very first stage of olfaction.
    1. Computational and Systems Biology
    2. Neuroscience

    On the dimensionality of odor space

    Markus Meister
    A recent claim that humans can discriminate 1 trillion odors is found to be unwarranted, and further analysis offers insights into the dimensionality of olfactory perception.
    1. Neuroscience

    The role of piriform associative connections in odor categorization

    Xiaojun Bao et al.
    Pharmacological fMRI reveals that associative connections contribute to odor categorization by supporting discrimination and generalization at different stages of the human olfactory system.
    1. Neuroscience
    2. Plant Biology

    Hawkmoths evaluate scenting flowers with the tip of their proboscis

    Alexander Haverkamp et al.
    Building on previous work (Kessler et al., 2015), it is shown that long-tongued hawkmoths assess individual flowers by smelling floral odors with olfactory neurons on their proboscises, and that this close-range perception is crucial for successful pollination and foraging.
    1. Neuroscience

    Pregnancy Loss: A possible link between olfaction and miscarriage

    Neven Borak, Johannes Kohl
    Unexplained repeated pregnancy loss is associated with an altered perception of male odors and differences in brain regions that process smells.
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    1. Neuroscience

    Organization and function of Drosophila odorant binding proteins

    Nikki K Larter et al.
    A genetic analysis reveals that some olfactory sensilla of Drosophila do not require an abundant odorant binding protein and that one such protein may act in gain control.
    1. Neuroscience

    Functional integration of a serotonergic neuron in the Drosophila antennal lobe

    Xiaonan Zhang, Quentin Gaudry
    Serotonergic cells innervating the Drosophila antennal lobe are inhibited by odors and modulate olfactory responses in conjunction with the entire serotonergic network.
    1. Neuroscience

    Opposite regulation of inhibition by adult-born granule cells during implicit versus explicit olfactory learning

    Nathalie Mandairon et al.
    While both implicit and explicit learning augment neurogenesis, adult-born cells differ in their morphology, functional coupling and inhibitory action impacting differentially the olfactory bulb output.
    1. Neuroscience

    Unexplained repeated pregnancy loss is associated with altered perceptual and brain responses to men’s body-odor

    Liron Rozenkrantz et al.
    Women with unexplained miscarriages have an altered behavioral and brain response to men's body-odor, and this may reflect a factor in their condition.

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