Official PDF Translation•Chinese Journal of Tissue Engineering Research

Functional near-infrared spectroscopy analysis of prefrontal cortex hemodynamics during dual tasks under cognitive loads

Authors: GUO Zhen; LI Shurui; ZHENG Weiwei; LI Ruofei; LI Qingwen

DOI: 10.12307/2026.21536Status: Verified Translated Edition

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Key Findings in This Report

• Cognitive task difficulty does not linearly increase prefrontal cortex activation; a moderate cognitive load optimally activates prefrontal resources. • Excessive cognitive load reduces dorsolateral prefrontal cortex activation, demonstrating a 'cognitive overload' effect. • Moderate cognitive load in dual-task training balances cognitive and motor performance, enhancing training effectiveness and safety. • Prefrontal cortex activation correlates positively with subjective workload and negatively with task performance.