1,654 results found
    1. Neuroscience

    Adaptive learning and decision-making under uncertainty by metaplastic synapses guided by a surprise detection system

    Kiyohito Iigaya
    Computational modeling offers an explanation for why animals learn more quickly or slowly when their environment becomes more variable or stable.
    1. Neuroscience

    Neural signatures of perceptual inference

    William Sedley et al.
    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. Computational and Systems Biology
    2. Neuroscience

    Statistical context dictates the relationship between feedback-related EEG signals and learning

    Matthew R Nassar et al.
    The P300, an electroencephalography (EEG) component known to be evoked by surprising events, predicts learning in a bidirectional manner that depends critically on the surrounding statistical context.
    1. Neuroscience

    Detecting and representing predictable structure during auditory scene analysis

    Ediz Sohoglu, Maria Chait
    Brain responses in humans demonstrate that the analysis of crowded acoustic scenes is based on a mechanism that infers the predictability of sensory information and up-regulates processing for reliable signals.
    1. Neuroscience

    Activity patterns of serotonin neurons underlying cognitive flexibility

    Sara Matias et al.
    Recordings from serotonin-producing neurons in the brain reveal that these neurons are highly activated by sudden changes in previously familiar environments, potentially explaining why serotonin is important for learning to adapt to such changes.
    1. Neuroscience

    Causal role for the subthalamic nucleus in interrupting behavior

    Kathryn H Fife et al.
    Activation of the subthalamic nucleus (STN) pauses or disrupts behavior, while STN inhibition reduces the disruptive effects of surprise, indicating that STN activation is both sufficient and necessary for behavioral inhibition.
    1. Neuroscience

    Pupil diameter encodes the idiosyncratic, cognitive complexity of belief updating

    Alexandre LS Filipowicz et al.
    Pupil-linked arousal dynamics are influenced more strongly by high-level internal belief states than by low-level sensory events during decision-making.
    1. Computational and Systems Biology
    2. Neuroscience

    Tuning movement for sensing in an uncertain world

    Chen Chen et al.
    Animals work in a world full of surprises, where using energy to position sensors proportional to the location's expected information avoids the pitfalls of positioning them at the information maxima.
    1. Neuroscience

    Brain signatures of a multiscale process of sequence learning in humans

    Maxime Maheu et al.
    Evidence for multiple brain systems for sequence processing involving statistical inferences at multiple scales.
    1. Neuroscience

    Response-based outcome predictions and confidence regulate feedback processing and learning

    Romy Frömer et al.
    Computational modeling, and empirical behavioral and EEG results show that learning relies not only on comparing current events to past experience, but integrates response-based outcome predictions and confidence.

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