Circadian rhythmicity of cognitive performance

Abstract

It was investigated whether cognitive performance shows a circadian rhythm during a 50 h-long forced desynchrony sleep-wake-schedule. We asked whether it would be possible to estimate the circadian period of cognitive performance under such circumstances and how strong it correlates to subjective sleepiness rating as well as body temperature.

Keywords

• circadian rhythmicity
• cognitive performance
• sleepiness
• spectral density estimation
• lomb-scargle periodogram
• periodogram