1,156 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. Cell Biology
    2. Microbiology and Infectious Disease

    Chromosomes: Bacteria spring a surprise

    Ramanujam Srinivasan, Mohan K Balasubramanian
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    1. Neuroscience

    Innate Behavior: Flies spring a surprise

    Johanna M Kobler, Ilona C Grunwald Kadow
    A combination of genetic, anatomical and physiological techniques has revealed that the lateral horn, a region of the brain involved in olfaction in flies, has many more types of neurons than expected.
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    1. Neuroscience

    Perception: Tell me something I don’t know

    Jonas Obleser
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    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

    Adaptive coding for dynamic sensory inference

    Wiktor F Młynarski, Ann M Hermundstad
    To make reliable but metabolically efficient perceptual inferences in a changing world, neural systems should dynamically adapt based on surprise and uncertainty about the sensory environment.

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