Journal of Neural Transmission

, Volume 114, Issue 4, pp 457–460 | Cite as

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

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 

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References

  1. Berson, DM, Dunn, FA, Takao, M 2002Phototransduction by retinal ganglion cells that set the circadian clockScience29510701073PubMedCrossRefGoogle Scholar
  2. Brainard, GC, Hanifin, JP 2005Photons, clocks, and consciousnessJ Biol Rhythms20314325PubMedCrossRefGoogle Scholar
  3. Brainard, GC, Hanifin, JP, Greeson, JM, Byrne, B, Glickman, G, Gerner, E, Rollag, MD 2001Action spectrum for melatonin regulation in humans: evidence for a novel circadian photoreceptorJ Neurosci2164056412PubMedGoogle Scholar
  4. Cajochen, C, Münch, M, Kobialka, S, Kräuchi, K, Steiner, R, Oelhafen, P, Orgül, S, Wirz-Justice, A 2005High sensitivity of human melatonin, alertness, thermoregulation, and heart rate to short wavelength lightJ Clin Endocrinol Metab9013111316PubMedCrossRefGoogle Scholar
  5. Czeisler, CA, Shanahan, TL, Klerman, EB, Martens, H, Brotman, DJ, Emens, JS, Klein, T, Rizzo, JF,3rd 1995Suppression of melatonin secretion in some blind patients by exposure to bright lightN Engl J Med332611PubMedCrossRefGoogle Scholar
  6. Eysenck, HJ, Eysenck, MW 1985Personality and individual differencesPlenumNew YorkGoogle Scholar
  7. Figueiro MG, Rea MS (2005) LEDs: improving the sleep quality of older adults. Proc. CIE Midterm Meeting and International Lighting Congress. Leon, Spain, May 18–21Google Scholar
  8. Figueiro, MG, Rea, MS, Eggleston, G 2003Light therapy and Alzheimers’s disease. Sleep ReviewJ Sleep Special424Google Scholar
  9. Gubin, DG, Gubin, GD, Waterhouse, J, Weinert, D 2006The circadian body temperature rhythm in the elderly: effect of single daily melatonin dosingChronobiol Int23639658PubMedCrossRefGoogle Scholar
  10. Haider, M 1969

    Elektrophysiologische Indikatoren der Aktivierung

    Schönpflug, W eds. Methoden der AktivierungsforschungHuberStuttgart
    Google Scholar
  11. Lehrl, S, Fischer, B 1990A basic information psychological parameter (BIP) for the reconstruction of concepts of intelligenceEur J Person4259286Google Scholar
  12. Lockley, SW, Brainard, GC, Czeisler, CA 2003High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength lightJ Clin Endocrinol Metab8845024505PubMedCrossRefGoogle Scholar
  13. Lockley, SW, Evans, EE, Scheer, FA, Brainard, GC, Czeisler, CA, Aeschbach, D 2006Short-wavelength sensitivity for the direct effects of light on alertness, vigilance, and the waking electroencephalogram in humansSleep29161168PubMedGoogle Scholar
  14. Thapan, K, Arendt, J, Skene, DJ 2001An action spectrum for melatonin suppression: evidence for a novel non-rod, non-cone photoreceptor system in humansJ Physiol535261267PubMedCrossRefGoogle Scholar
  15. Yerkes, RM, Dodson, JD 1908The relation of strength of stimulus to rapidity of habit-formationJ Comp Neurol Psychol18459482CrossRefGoogle Scholar

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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