Nocturnal alertness improves after exposure to milliseconds of bright light flashes
Tuesday, June 15, 2010 - 03:00
in Physics & Chemistry
Subjective sleepiness decreased and objective nighttime alertness improved after participants received a two-millisecond pulse of bright light once per minute for 60 minutes. Flash exposure, as compared with darkness, elicited significant improvement in self-rated alertness and a significant 57-millisecond improvement in median reaction time on the auditory Psychomotor Vigilance Test, compared with no significant improvement after 60 minutes of darkness.