卡罗林斯卡嗜睡量表评分对生理和驾驶性能即时警觉效应的影响

The objective of this study was to determine whether subjectively rating sleepiness on the Karolinska Sleepiness Scale (KSS) gives rise to an alerting effect and, if so, how long it persists. Data from five driving simulator studies involving 83 participants were pooled. Time-locked trajectories of blink duration, blink closing velocity, heart rate, electroencephalographic (EEG) parietal α and frontal θ power, and lateral lane position variability were analysed around each KSS rating using linear mixed-effects models with condition-specific KSS baselines, a transient post-rating component, a l