Blue light improves cognitive performance.
A newly discovered system of photoreceptors for circadian rhythms works non-visual and responds to blue light (460 nm). We report a longitudinal study in 44 adults, showing that a significant increase in alertness and speed of information processing could be achieved by blue light as compared to normal light.
Lehrl
S
S
Department of Psychiatry and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany. siegfried.lehrl@psych.imed.uni-erlangen.de
Gerstmeyer
K
K
Jacob
J H
JH
Frieling
H
H
Henkel
A W
AW
Meyrer
R
R
Wiltfang
J
J
Kornhuber
J
J
Bleich
S
S
D000293:Adolescent; D000328:Adult; D000368:Aged; D003071:Cognition / Q000502:physiology*; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects