213 results found
    1. Ecology
    2. Evolutionary Biology

    Positive and negative incentive contrasts lead to relative value perception in ants

    Stephanie Wendt, Kim S Strunk ... Tomer J Czaczkes
    Relative value perception, a basic tenant of Behavioural Economics, is demonstrated in an insect, and further shown to be driven by cognitive processes and induced by private and social information.
    1. Neuroscience

    A Bayesian model of context-sensitive value attribution

    Francesco Rigoli, Karl J Friston ... Raymond J Dolan
    The dependence of incentive value attribution on the anticipation of rewards within a given context is explained via a normative Bayesian account of how rewards map to incentive values.
    1. Neuroscience

    Orbital frontal cortex updates state-induced value change for decision-making

    Emily T Baltz, Ege A Yalcinbas ... Christina M Gremel
    Orbital frontal cortex projection neuron activity is necessary to update state-dependent value change to control model-based behavior.
    1. Neuroscience

    The paraventricular thalamus is a critical mediator of top-down control of cue-motivated behavior in rats

    Paolo Campus, Ignacio R Covelo ... Shelly B Flagel
    A top-down circuit generating from the prelimbic cortex and projecting to the paraventricular nucleus of the thalamus mediates individual differences in cue-elicited responding by affecting subcortical dopamine-dependent incentive learning.
    1. Neuroscience
    2. Computational and Systems Biology

    A specific role for serotonin in overcoming effort cost

    Florent Meyniel, Guy M Goodwin ... Raphaël Gaillard
    A selective reuptake inhibitor shows a beneficial effect in healthy humans during an effort-benefit tradeoff task, mediated at the computational level by a specific alleviation of effort cost.
    1. Neuroscience

    Tonic firing mode of midbrain dopamine neurons continuously tracks reward values changing moment-by-moment

    Yawei Wang, Osamu Toyoshima ... Masayuki Matsumoto
    Although the phasic activity of midbrain dopamine neurons is known to represent reward values, these neurons displayed a tonic firing mode to continuously track reward values changing moment-by-moment.
    1. Neuroscience

    Hedonic processing in humans is mediated by an opioidergic mechanism in a mesocorticolimbic system

    Christian Buchel, Stephan Miedl, Christian Sprenger
    The pleasure of rewards in humans is mediated by an opioidergic mechanism.
    1. Neuroscience

    Homeostatic reinforcement learning for integrating reward collection and physiological stability

    Mehdi Keramati, Boris Gutkin
    A mathematical model built around the assumption that the desire to maintain internal homeostasis drives the behavior of animals, by affecting their learning processes, can explain many real-world behaviors, including some that might otherwise appear irrational.
    1. Neuroscience

    Offline replay supports planning in human reinforcement learning

    Ida Momennejad, A Ross Otto ... Kenneth A Norman
    fMRI evidence for off-task replay predicts subsequent replanning behavior in humans, suggesting that learning from simulated experience during replay helps update past policies in reinforcement learning.
    1. Computational and Systems Biology
    2. Neuroscience

    An incentive circuit for memory dynamics in the mushroom body of Drosophila melanogaster

    Evripidis Gkanias, Li Yan McCurdy ... Barbara Webb
    Modelling differential roles for identified dopaminergic and output neurons of the fruit fly mushroom bodies, combined with a novel dopaminergic plasticity rule, explains neural and behavioural phenomena in olfactory learning tasks.

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