On light as an alerting stimulus at night.

摘要: Light exposure at night increases alertness; however, it is not clear if light affects nocturnal alertness in the same way that measures of circadian regulation. The purpose this study was to determine a previously established functional relationship between and melatonin suppression as relating alertness. Four levels narrow-band blue cornea were presented during nighttime sessions. ratio electroencephalographic alpha power density with eyes closed open (alpha attenuation coefficient, AAC) Norris mood scale used. AAC ratings increased monotonically irradiance highly correlated. Both correlated model predictions for stimulus, consistent inference suprachiasmatic nuclei play an important role well