Temporal dynamics of subjective sleepiness: A convergence analysis of two scales

While sleepiness assessment metrics were initially developed in medical research, subjective is now widely used both fundamental and applied studies. The Stanford Sleepiness Scale (SSS) the Karolinska (KSS) are often considered gold standard research. However, their convergence specific features have not been sufficiently investigated. present study aims to analyse dynamics of as measured by KSS SSS. A total 208 adults participated experiment. Our findings suggest that generally increased from evening till night was highest early morning. SSS score appeared be more sensitive certain factors. scores strongly correlated with each other converged on assessment. showed a even distribution than Currently, we continuously expanding SSDD.