HRV-Based Multimodal Physiological Signal Monitoring Using Wearable Biosensors in Human-Computer Interaction: Cognitive Load in Real-Time Strategy Games.

Alternatively, the marginal significance suggests the possibility of statistical fluctuation, warranting cautious interpretation.

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low: −8.83%, W = 308, p = 0.7037, r = −0.07), though these were not statistically significant or marginally significant.

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The LF/HF ratio, often interpreted as an index of sympathovagal balance, also correlated positively with subjective load in three out of four experiments (Exp1, 3, 4), although it failed to reach significance in the visual complexity task (Exp2).

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