3,209 results found
    1. Neuroscience

    Catecholaminergic challenge uncovers distinct Pavlovian and instrumental mechanisms of motivated (in)action

    Jennifer C Swart et al.
    Motivational coupling of action to reward and inhibition to punishment is subserved by dissociable learning and choice processes, and is modulated by dopamine/noradrenaline transporter blockade.
    1. Neuroscience

    Ventral pallidal encoding of reward-seeking behavior depends on the underlying associative structure

    Jocelyn M Richard et al.
    Reward-related cues elicit phasic changes in activity in ventral pallidum neurons, which predict and functionally contribute to the speed of behaviors trained on the basis of act-outcome, but not stimulus-outcome, contingencies.
    1. Neuroscience

    Thalamocortical and corticothalamic pathways differentially contribute to goal-directed behaviors in the rat

    Fabien Alcaraz et al.
    Adaptive decision-making critically depends on antiparallel flows conveying distinct information within thalamocortical circuits, highlighting directionality of functional exchanges as a neural principle potentially at play in virtually any brain circuit with reciprocal projections.
    1. Neuroscience

    Mesolimbic dopamine projections mediate cue-motivated reward seeking but not reward retrieval in rats

    Briac Halbout et al.
    Inhibiting ventral tegmental dopamine neurons, or their inputs to nucleus accumbens, disrupts cue-motivated reward seeking in a manner that depends on the microstructure of behavior.
    1. Neuroscience

    Striatal direct and indirect pathway neurons differentially control the encoding and updating of goal-directed learning

    James Peak et al.
    Direct and indirect pathway neurons in posterior dorsomedial striatum were found to play distinct roles, with the former necessary for encoding and the latter for updating goal-directed learning.
    1. Neuroscience

    Dopamine promotes instrumental motivation, but reduces reward-related vigour

    John P Grogan et al.
    Dopaminergic medication dissociates contingent motivation from reward expectation effects on invigoration of movements in PD patients, confirming they are separate processes with different dopaminergic functions.
    1. Neuroscience

    Functional heterogeneity within the rodent lateral orbitofrontal cortex dissociates outcome devaluation and reversal learning deficits

    Marios C Panayi, Simon Killcross
    The rodent orbitofrontal cortex makes functionally distinct contributions to flexible behavioural control, even within a single putative orbitofrontal subregion, which has important implications for establishing homology between rodent and primate orbitofrontal cortex.
    1. Neuroscience

    Acetylcholine is released in the basolateral amygdala in response to predictors of reward and enhances the learning of cue-reward contingency

    Richard B Crouse et al.
    The release of acetylcholine in the basolateral amygdala is precisely timed to salient events during reward learning but has long-lasting effects that potentiate learning of cue-reward contingencies.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Pyphe, a python toolbox for assessing microbial growth and cell viability in high-throughput colony screens

    Stephan Kamrad et al.
    An open-source python package for phenotype analyses provides a versatile, modular and user-friendly solution to determine complementary fitness-related traits from large-scale assays of microbial colonies.
    1. Neuroscience

    Risk of punishment influences discrete and coordinated encoding of reward-guided actions by prefrontal cortex and VTA neurons

    Junchol Park, Bita Moghaddam
    Risk of punishment during reward seeking behavior is associated with a functional "disconnection" of the PFC-VTA circuit due to a transient loss of VTA-driven theta oscillation.

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