84 results found
    1. Neuroscience

    Distinct hierarchical alterations of intrinsic neural timescales account for different manifestations of psychosis

    Kenneth Wengler, Andrew T Goldberg ... Guillermo Horga
    fMRI evidence for distinct hierarchical alterations in intrinsic neural timescales for different positive symptoms of schizophrenia support hierarchical perceptual-inference models of psychosis and suggest local increases in excitation-inhibition ratio.
    1. Computational and Systems Biology
    2. Neuroscience

    Parallel processing, hierarchical transformations, and sensorimotor associations along the ‘where’ pathway

    Raymond Doudlah, Ting-Yu Chang ... Ari Rosenberg
    Hierarchical transformations of visual representations, saccade-related activity, and sensorimotor associations occur in parallel at the juncture of visual and parietal cortex.
    1. Computational and Systems Biology
    2. Neuroscience

    Neuronal timescales are functionally dynamic and shaped by cortical microarchitecture

    Richard Gao, Ruud L van den Brink ... Bradley Voytek
    Invasive electrophysiological recording measures neuronal transmembrane current timescales across human cortex, which lengthens from sensory to association regions, follows variations in ion channel expressions, and alters with behavior and aging.
    1. Neuroscience

    A hierarchy of timescales explains distinct effects of local inhibition of primary visual cortex and frontal eye fields

    Luca Cocchi, Martin V Sale ... Jason B Mattingley
    The selective effect of local inhibition on diffuse patterns of brain connectivity can be accounted for by an intrinsic hierarchical ordering of cortical timescales.
    1. Computational and Systems Biology
    2. Neuroscience

    Saccadic suppression as a perceptual consequence of efficient sensorimotor estimation

    Frédéric Crevecoeur, Konrad P Kording
    Neural computations necessary for efficient control of saccades capture the phenomenon of saccadic suppression, which suggests that neural resources are shared for perception and control.
    1. Neuroscience

    A partially nested cortical hierarchy of neural states underlies event segmentation in the human brain

    Linda Geerligs, Dora Gözükara ... Umut Güçlü
    The ongoing stream of information that comes in through our senses is segmented into distinct neural states at each level of the cortical hierarchy, which underpins our experience of distinct events.
    1. Neuroscience

    Mechanisms of distributed working memory in a large-scale network of macaque neocortex

    Jorge F Mejías, Xiao-Jing Wang
    An anatomically constrained computational model of the macaque cortical network demonstrates the emergence of large-scale distributed patterns of mnemonic activity sustained by long-range cortico-cortical interactions.
    1. Neuroscience

    Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements

    Sho Ito, Hiroaki Gomi
    Distortion and elimination of limb visual feedback affects low-level stretch reflex control, indicating the involvement of a high-level and multimodal representation of the limb state in orchestrating hierarchical sensorimotor control.
    1. Computational and Systems Biology
    2. Neuroscience

    Self-configuring feedback loops for sensorimotor control

    Sergio Oscar Verduzco-Flores, Erik De Schutter
    Learning to reach in the sensorimotor loop, and the required neural dynamics, can be potentially explained by simple principles.
    1. Evolutionary Biology
    2. Neuroscience

    Whole-brain comparison of rodent and human brains using spatial transcriptomics

    Antoine Beauchamp, Yohan Yee ... Jason P Lerch
    A novel machine learning approach improves quantitative comparisons of mouse and human brains using spatial transcriptomics data sets.

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