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J Neural Transm (Vienna). 2007;114(4):457-60. Epub 2007 Jan 25.

Blue light improves cognitive performance.

Author information

1
Department of Psychiatry and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany. siegfried.lehrl@psych.imed.uni-erlangen.de

Abstract

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.

PMID:
17245536
DOI:
10.1007/s00702-006-0621-4
[Indexed for MEDLINE]

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