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    1. Neuroscience

    Opposite initialization to novel cues in dopamine signaling in ventral and posterior striatum in mice

    William Menegas et al.
    Dopamine novelty signals are localized in the posterior tail of the striatum along with general salience signals, while dopamine in the ventral striatum reliably encodes reward prediction error.
    1. Neuroscience

    Dopamine neurons projecting to the posterior striatum form an anatomically distinct subclass

    William Menegas et al.
    Dopamine neurons projecting to different targets receive a similar set of inputs, rather than forming reciprocal connections, whereas those projecting to the posterior striatum receive a distinct set of inputs.
    1. Neuroscience

    Midbrain dopamine neurons signal aversion in a reward-context-dependent manner

    Hideyuki Matsumoto et al.
    Dopamine neurons signal value prediction errors (VPEs) integrating information about both reward and aversion, in low reward contexts, whereas VPEs in some dopamine neurons are distorted in high reward contexts.
    1. Neuroscience

    Emergence of visually-evoked reward expectation signals in dopamine neurons via the superior colliculus in V1 lesioned monkeys

    Norihiro Takakuwa et al.
    The subcortical visual pathway through the midbrain superior colliculus is responsible for visually evoked Pavlovian conditioning and dopamine neuron responses with predicted value in monkeys, which remained after lesioning V1.
    1. Neuroscience

    Effects of dopamine on reinforcement learning and consolidation in Parkinson’s disease

    John P Grogan et al.
    Memory over 24 hours was impaired in Parkinson's patients off, rather than on, dopaminergic medication during reinforcement learning, whereas dopamine did not affect positive and negative reinforcement, in contrast to previous studies.
    1. Neuroscience

    Dopamine regulates stimulus generalization in the human hippocampus

    Thorsten Kahnt, Philippe N Tobler
    Inhibition of dopamine D2 receptors reduces generalization between stimuli, possibly by reducing interactions between the hippocampus and midbrain.
    1. Neuroscience

    Dopamine neurons learn relative chosen value from probabilistic rewards

    Armin Lak et al.
    When learning the reward probability of novel cues, dopamine neurons convey dissociable value and novelty signals.
    1. Neuroscience

    Attenuated dopamine signaling after aversive learning is restored by ketamine to rescue escape actions

    Mingzheng Wu et al.
    Interconnected ventral tegmental area and medial prefrontal cortex circuits causally link dopamine dynamics, aversive learning, and the effects of a promising rapidly acting antidepressant ketamine.
    1. Neuroscience

    A selective effect of dopamine on information-seeking

    Valentina Vellani et al.
    L-DOPA administration increases information-seeking about potential losses without impacting information-seeking about potential gains, and as a result, it reduces the effect of valence on information-seeking.
    1. Structural Biology and Molecular Biophysics

    Crystal structure of dopamine receptor D4 bound to the subtype selective ligand, L745870

    Ye Zhou et al.
    The structure of receptor-ligand complex reveals the ligand binding selectivity among different dopamine receptor subtypes and also shows how this ligand class inhibits receptor activity.