ArticleFrontiers in psychology2026
Impact of 1-h memory tasks with different cognitive loads on ET-derived indices of neurotransmitter-system involvement in university athletes.
Article in Frontiers in psychology, 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
Purpose: To investigate the effects of memory tasks of different difficulty levels on the brain functional state of collegiate athletes and to explore the underlying neurophysiological mechanisms related to cognitive fatigue. Methods: Forty-five collegiate athletes (national second-level or above) were randomly assigned to a moderate-difficulty task group, a low-difficulty task group, or a control group ( Results: The moderate-difficulty task led to a significant decline in accuracy and a block-wise slow-fast pattern in reaction time ( Conclusion: A 1-h moderate-difficulty memory task caused a progressive decline in accuracy with reaction times initially slowing and then accelerating, and was accompanied by an increase in the ET-derived S4 index alongside a smaller non-specific time effect in S11. These ET findings should be interpreted as indirect indices and are hypothesis-generating with respect to neurotransmitter mechanisms.
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