2,661 results found
    1. Neuroscience

    Evolution of neural activity in circuits bridging sensory and abstract knowledge

    Francesca Mastrogiuseppe, Naoki Hiratani, Peter Latham
    Gradient-descent synaptic plasticity applied to neuroscience categorization tasks captures the behaviour of common neural activity measures (category and context selectivity, correlation, asymmetry) reported in experiments, and makes novel experimental predictions.
    1. Neuroscience

    Coupling of saccade plans to endogenous attention during urgent choices

    Allison T Goldstein, Terrence R Stanford, Emilio Salinas
    Psychophysical measurements using time pressure indicate that when attention is willfully deployed, a congruent scaccade is automatically planned, but the coupling is weak and can be rapidly broken.
    1. Ecology
    2. Evolutionary Biology

    A new early branching armored dinosaur from the Lower Jurassic of southwestern China

    Xi Yao, Paul M Barrett ... Shundong Bi
    Yuxisaurus represents the first unambiguous armored dinosaur to be recovered from the Lower Jurassic of Asia, confirming the rapid geographic spread and diversification of the armored dinosaurs throughout the northern hemisphere early in their evolution.
    1. Neuroscience

    Computational mechanisms of curiosity and goal-directed exploration

    Philipp Schwartenbeck, Johannes Passecker ... Karl J Friston
    Distinct computational levels of uncertainty compel agents to gain information about hidden states in the world (‘active inference’) or optimise their ‘world model’ as such (‘active learning’).
    1. Neuroscience

    Judging the difficulty of perceptual decisions

    Anne Löffler, Ariel Zylberberg ... Daniel M Wolpert
    Deciding which of two perceptual decisions is more difficult involves sequential sampling processes that terminate when the difference in accumulated evidence for each decision exceeds a threshold.
    1. Neuroscience

    Task-dependent coarticulation of movement sequences

    Hari Teja Kalidindi, Frederic Crevecoeur
    Long-latency reflexes flexibly encode future goals during sequential reaching movements, reflecting the parallel and task-dependent processing of a sequence of goals in circuits that mediate fast feedback control.
    1. Neuroscience

    The influence of evidence volatility on choice, reaction time and confidence in a perceptual decision

    Ariel Zylberberg, Christopher R Fetsch, Michael N Shadlen
    A single framework of bounded evidence accumulation resolves the seemingly paradoxical effects of noise on accuracy, reaction time and confidence.
    1. Neuroscience

    Functional links between sensory representations, choice activity, and sensorimotor associations in parietal cortex

    Ting-Yu Chang, Raymond Doudlah ... Ari Rosenberg
    The fidelity of 3D visual object representations, choice-related activity, and experience-dependent sensorimotor associations are functionally linked in the caudal intraparietal area.
    1. Neuroscience

    Preserved sensory processing but hampered conflict detection when stimulus input is task-irrelevant

    Stijn Adriaan Nuiten, Andrés Canales-Johnson ... Simon van Gaal
    When all features of conflicting sensory input are task-irrelevant, the brain can still process its sensory information, whereas conflict detection requires that minimally one stimulus feature is task-relevant or associated with a response.
    1. Neuroscience

    Value generalization in human avoidance learning

    Agnes Norbury, Trevor W Robbins, Ben Seymour
    Individual differences in generalization of aversive value (but not safety information) during human active avoidance learning specifically predict experience of anxiety and intrusive thoughts.

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