Journal of Neural Transmission

, Volume 114, Issue 4, pp 457–460

Blue light improves cognitive performance

  • S. Lehrl
  • K. Gerstmeyer
  • J. H. Jacob
  • H. Frieling
  • A. W. Henkel
  • R. Meyrer
  • J. Wiltfang
  • J. Kornhuber
  • S. Bleich
Rapid communication

DOI: 10.1007/s00702-006-0621-4

Cite this article as:
Lehrl, S., Gerstmeyer, K., Jacob, J. et al. J Neural Transm (2007) 114: 457. doi:10.1007/s00702-006-0621-4

Summary

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.

Keywords: Blue light, circadian rhythm, cognitive efficiency, alertness, speed of information processing 

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • S. Lehrl
    • 1
  • K. Gerstmeyer
    • 2
  • J. H. Jacob
    • 1
  • H. Frieling
    • 1
  • A. W. Henkel
    • 1
  • R. Meyrer
    • 1
  • J. Wiltfang
    • 1
  • J. Kornhuber
    • 1
  • S. Bleich
    • 1
  1. 1.Department of Psychiatry and PsychotherapyUniversity of Erlangen-NurembergErlangenGermany
  2. 2.AugenzentrumMinden/WestfalenGermany

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