2,790 results found
    1. Neuroscience

    Feedback optimizes neural coding and perception of natural stimuli

    Chengjie G Huang et al.
    Neurophysiological and behavioral approaches reveal how coordinated input from descending pathways shapes the tuning properties of electrosensory neurons in order to optimize coding of natural stimuli through temporal whitening.
    1. Neuroscience

    Stimulus background influences phase invariant coding by correlated neural activity

    Michael G Metzen, Maurice J Chacron
    Building on previous work (Metzen et al., 2016), a combination of neurophysiological and behavioral approaches reveals that changes in the background strongly impacts invariant coding and perception of behaviourally relevant signals.
    1. Computational and Systems Biology
    2. Neuroscience

    Neural correlations enable invariant coding and perception of natural stimuli in weakly electric fish

    Michael G Metzen et al.
    Neural circuits in weakly electric fish perform a set of computations to allow natural communication signals to be perceived independently of their context.
    1. Neuroscience

    Phasic and tonic neuron ensemble codes for stimulus-environment conjunctions in the lateral entorhinal cortex

    Maryna Pilkiw et al.
    Neuron populations in the lateral entorhinal cortex discriminate between memory-based contexts through both continuous "tonic" activity patterns as well as by their stimulus-evoked "phasic" responses.
    1. Neuroscience

    Distinct neural contributions to metacognition for detecting, but not discriminating visual stimuli

    Matan Mazor et al.
    Combining psychophysics and functional MRI reveals a qualitative asymmetry in neural engagement when reflecting on whether a stimulus is seen (detection) compared to reflecting on what a stimulus is (discrimination).
    1. Neuroscience

    Amygdala neural activity reflects spatial attention towards stimuli promising reward or threatening punishment

    Christopher J Peck, C Daniel Salzman
    Primate amygdala neurons provide a coordinated representation of space and motivational significance whereby amygdala responses to visual stimuli predicting either rewards or aversive stimuli could influence spatial attention in a similar manner.
    1. Neuroscience

    Multiple mechanisms link prestimulus neural oscillations to sensory responses

    Luca Iemi et al.
    Neural oscillations prior to a stimulus modulate the strength of early and late responses in opposite directions via distinct mechanisms.
    1. Computational and Systems Biology
    2. Neuroscience

    Population adaptation in efficient balanced networks

    Gabrielle J Gutierrez, Sophie Denève
    Neural populations may depend on balanced recurrent connectivity to produce an efficient stimulus representation while also maintaining an accurate stimulus encoding despite the variability introduced by adapting neural responses.
    1. Neuroscience

    Variance predicts salience in central sensory processing

    Ann M Hermundstad et al.
    Psychophysical measures of human sensitivity to visual patterns reveal that the brain preferentially processes those features of stimuli that are more variable in the natural world.
    1. Physics of Living Systems

    Somatosensory neurons integrate the geometry of skin deformation and mechanotransduction channels to shape touch sensing

    Alessandro Sanzeni et al.
    Nonlinear elasticity of skin tissues and somatosensory neural responses are combined to predict and test C. elegans processing of touch stimuli and modifications due to changes in the body mechanics.

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