ArticleFrontiers in human neuroscience2026
Cortical activation and functional connectivity during dual-task walking under different cognitive loads: an fNIRS study.
Article in Frontiers in human neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Cognitive-motor dual-task processing is common in daily life, but load-related changes in cortical activation and functional connectivity during walking remain incompletely characterized. This study examined neural and behavioral responses to different cognitive demands using functional near-infrared spectroscopy (fNIRS). Methods: Thirty healthy undergraduate students completed single-task walking (ST), 1-back dual-task walking (DT1), and 2-back dual-task walking (DT2). Hemodynamic signals from prefrontal, motor, and parietal regions were recorded using portable fNIRS. Gait parameters, cognitive accuracy, dual-task cost, and the region-of-interest (ROI) based functional connectivity were analyzed. Results: Cortical activation showed task-dependent regional changes. Functional connectivity was higher during DT1 and DT2 than during ST ( Conclusion: In healthy young adults, increasing cognitive demands during dual-task walking were associated with distinct changes in cortical activation, interregional connectivity, and behavioral performance. These findings characterize load-related patterns in cortical activation and functional connectivity during dual-task walking.
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