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Related Concept Videos

Lateralization01:28

Lateralization

949
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Cerebral Hemispheres01:05

Cerebral Hemispheres

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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Extraction of Seafarers' Occupational Plasticity Brain Network Based on Effective Connectivity Lateralization.

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    Long-term seafaring reshapes brain activity, impacting networks like Ventral Attention and Somatomotor. This study introduces a new analysis framework (ECLA) to reveal occupational plasticity in seafarers

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    Area of Science:

    • Neuroscience
    • Occupational Health
    • Brain Plasticity

    Background:

    • Lateralization is key for understanding brain function changes.
    • Seafaring involves unique demands impacting seafarers' brain activity.
    • Exploring occupational influences on brain plasticity is crucial.

    Purpose of the Study:

    • To introduce a novel Effective Connectivity Lateralization Analysis (ECLA) framework.
    • To analyze the effects of seafaring on brain plasticity using a Transformer-based Granger causality model (Transformer-GC).
    • To identify unique occupational plasticity brain networks in seafarers.

    Main Methods:

    • Developed a Transformer-GC model for effective connectivity (EC) matrix construction.
    • Derived lateralization indices to assess occupational influences on brain activity.
    • Compared Transformer-GC with GRU-based, MVGC, and Pearson-based models.

    Main Results:

    • Transformer-GC demonstrated superior performance with accuracy improvements of 16% (GRU), 19.4% (MVGC), and 5% (Pearson).
    • ECLA revealed significant differences in Ventral Attention, Somatomotor, and Dorsal Attention networks in seafarers.
    • Occupational experience was shown to reshape brain functional activity lateralization.

    Conclusions:

    • ECLA effectively reveals the impact of long-term maritime work on brain plasticity.
    • The study identified specific brain networks affected by seafaring.
    • Occupational experience can induce neural plasticity, reshaping brain lateralization.