791 results found
    1. Neuroscience

    Recruitment of the default mode network during a demanding act of executive control

    Ben M Crittenden et al.
    The default mode network in the brain is activated during the performance of executive-type tasks when a substantial change in cognitive contents is required.
    1. Neuroscience

    Task-dependent recurrent dynamics in visual cortex

    Satohiro Tajima et al.
    A decoding-based, state-space reconstruction reveals that neurons in macaque IT cortex change the structure of their collective attractor dynamics depending on task contexts.
    1. Neuroscience

    Integrated externally and internally generated task predictions jointly guide cognitive control in prefrontal cortex

    Jiefeng Jiang et al.
    The dorsolateral prefrontal cortex integrates concurrent externally and internally generated predictions of task demand to guide information processing, while the medial prefrontal cortex corrects its prediction error based on actual task demand.
    1. Neuroscience

    A selective role for ventromedial subthalamic nucleus in inhibitory control

    Benjamin Pasquereau, Robert S Turner
    Single-unit activity consistent with a selective causal role in reactive stopping or switching behaviors is found only in the most ventromedial subregion of the subthalamic nucleus.
    1. Neuroscience

    Control of entropy in neural models of environmental state

    Timothy H Muller et al.
    Evidence for neuromodulatory control of flexibility in human neural models.
    1. Neuroscience

    Critical role for the mediodorsal thalamus in permitting rapid reward-guided updating in stochastic reward environments

    Subhojit Chakraborty et al.
    In monkeys, the integrity of the magnocellular subdivision of mediodorsal thalamus is important when using recent rewarded choices to promote persistence with a recently sampled choice during changing or uncertain reward guided-learning and decision-making tasks.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Mapping replication dynamics in Trypanosoma brucei reveals a link with telomere transcription and antigenic variation

    Rebecca Devlin et al.
    Mapping DNA replication timing, allied to genetic analysis of a RecQ repair helicase, reveals that antigenic variation in the African trypanosome may be initiated by locus-specific, replication-derived sequence instability.
    1. Neuroscience

    Preparation for upcoming attentional states in the hippocampus and medial prefrontal cortex

    Eren Günseli, Mariam Aly
    Memory guides attention by enabling preparation for upcoming states in the hippocampus and medial prefrontal cortex.
    1. Neuroscience

    Balancing model-based and memory-free action selection under competitive pressure

    Atsushi Kikumoto, Ulrich Mayr
    People compete by trying to outsmart their opponents as long as they win, but show random behavior, and neural signs of suppressing knowledge about opponents’ strategies, when they lose.
    1. Neuroscience

    Attenuation of dopamine-modulated prefrontal value signals underlies probabilistic reward learning deficits in old age

    Lieke de Boer et al.
    Attenuated anticipatory activity in ventromedial prefrontal cortex is modulated by dopamine D1 receptor density in nucleus accumbens, and accounts for impaired probabilistic reward learning in older adults.

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