4,465 results found
    1. Neuroscience

    Neural signatures of perceptual inference

    William Sedley, Phillip E Gander ... Timothy D Griffiths
    Changes to sensory predictions are encoded by beta oscillations, surprise due to prediction violations by gamma oscillations, and alpha oscillations may have a role in controlling the precision of predictions.
    1. Neuroscience

    Perception as a closed-loop convergence process

    Ehud Ahissar, Eldad Assa
    Perception is proposed to be a dynamic motor-sensory closed-loop process in which information flows through the environment and the brain in continuous loops, converging towards steady-state percepts.
    1. Neuroscience

    The causal role of the somatosensory cortex in prosocial behaviour

    Selene Gallo, Riccardo Paracampo ... Valeria Gazzola
    A combination of human imaging and brain stimulation techniques show that the somatosensory cortex is essential to prosocial decision making, by transforming observed pain in accurate perception of others' distress.
    1. Neuroscience

    The SSVEP tracks attention, not consciousness, during perceptual filling-in

    Matthew J Davidson, Will Mithen ... Naotsugu Tsuchiya
    The strength of frequency-tagged neural activity during perceptual filling anti-correlates with the contents of consciousness, yet positively correlates with a neural measure of attention, dissociating these often confounded brain processes.
    1. Neuroscience

    Feedback optimizes neural coding and perception of natural stimuli

    Chengjie G Huang, Michael G Metzen, Maurice J Chacron
    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

    Neural dynamics of perceptual inference and its reversal during imagery

    Nadine Dijkstra, Luca Ambrogioni ... Marcel van Gerven
    Perceptual feedforward information flow is reversed during mental imagery and later stages of perception.
    1. Neuroscience

    Causal roles of prefrontal cortex during spontaneous perceptual switching are determined by brain state dynamics

    Takamitsu Watanabe
    Prefrontal causal roles in bistable perception are dynamically changing and determined by the brain state to which the whole-brain activity pattern belongs.
    1. Structural Biology and Molecular Biophysics

    ATP and large signaling metabolites flux through caspase-activated Pannexin 1 channels

    Adishesh K Narahari, Alex JB Kreutzberger ... Douglas A Bayliss
    Purified Pannexin 1 channels activated by caspase cleavage in proteoliposomes reconstitute a permeation pathway for intercellular signaling molecules important in inflammation and cell clearance.
    1. Neuroscience

    How many neurons are sufficient for perception of cortical activity?

    Henry WP Dalgleish, Lloyd E Russell ... Michael Häusser
    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

    Damage to the right insula disrupts the perception of affective touch

    Louise P Kirsch, Sahba Besharati ... Aikaterini Fotopoulou
    Lesion analyses in right hemisphere stroke patients reveal the crucial role of the right anterior and posterior insula in the perception of affective touch.

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