Exposure to blue light during lunch break: effects on autonomic arousal and behavioral alertness
Tóm tắt
Exposures to melanopsin-stimulating (melanopic) component-rich blue light enhance arousal level. We examined their effects in office workers. Eight healthy university office workers were exposed to blue and orange lights for 30 min during lunch break on different days. We compared the effects of light color on autonomic arousal level assessed by heart rate variability (HRV) and behavioral alertness by psychomotor vigilance tests (PVT). Heart rate was higher and high-frequency (HF, 0.150.45 Hz) power of HRV was lower during exposure to the blue light than to orange light. No significant difference with light color was observed, however, in any HRV indices during PVT or in PVT performance after light exposure. Exposure to blue light during lunch break, compared with that to orange light, enhances autonomic arousal during exposure, but has no sustained effect on autonomic arousal or behavioral alertness after exposure.
Tài liệu tham khảo
Cajochen C, Munch M, Kobialka S, Krauchi K, Steiner R, Oelhafen P, Orgul S, Wirz-Justice A. High sensitivity of human melatonin, alertness, thermoregulation, and heart rate to short wavelength light. J Clin Endocrinol Metab. 2005;90(3):1311–6.
Chellappa SL, Steiner R, Blattner P, Oelhafen P, Gotz T, Cajochen C. Non-visual effects of light on melatonin, alertness and cognitive performance: can blue-enriched light keep us alert? PLoS One. 2011;6(1):e16429.
Choi CJ, Kim KS, Kim CM, Kim SH, Choi WS. Reactivity of heart rate variability after exposure to colored lights in healthy adults with symptoms of anxiety and depression. Int J Psychophysiol. 2011;79(2):83–8.
Daneault V, Hebert M, Albouy G, Doyon J, Dumont M, Carrier J, Vandewalle G. Aging reduces the stimulating effect of blue light on cognitive brain functions. Sleep. 2014;37(1):85–96.
Yuda E, Ogasawara H, Yoshida Y, Hayano J. Suppression of vagal cardiac modulation by blue light in healthy subjects. J Physiol Anthropol. 2016;35:24.
Yuda E, Ogasawara H, Yoshida Y, Hayano J. Enhancement of autonomic and psychomotor arousal by exposures to blue wavelength light: importance of both absolute and relative contents of melanopic component. J Physiol Anthropol. 2017;36(1):13.
Khitrov MY, Laxminarayan S, Thorsley D, Ramakrishnan S, Rajaraman S, Wesensten NJ, Reifman J. PC-PVT: a platform for psychomotor vigilance task testing, analysis, and prediction. Behav Res Methods. 2014;46(1):140–7.
Camm AJ, Malik M, Bigger Jr JT, Breithardt G, Cerutti S, Cohen RJ, Coumel P, Fallen EL, Kleiger RE, Lombardi F, Malliani A, Moss AJ, Rottman JN, Schmidt G, Schwartz PJ, Singer DH. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. Heart rate variability: standards of measurement, physiological interpretation and clinical use. Circulation. 1996;93(5):1043–65.
Hayano J. Introduction to heart rate variability. In: Iwase S, Hayano J, Orimo S, editors. Clinical assessment of the autonomic nervous system. Japan: Springer; 2016. p. 109–27.
Graw P, Krauchi K, Knoblauch V, Wirz-Justice A, Cajochen C. Circadian and wake-dependent modulation of fastest and slowest reaction times during the psychomotor vigilance task. Physiol Behav. 2004;80(5):695–701.
Kozaki T, Koga S, Toda N, Noguchi H, Yasukouchi A. Effects of short wavelength control in polychromatic light sources on nocturnal melatonin secretion. Neurosci Lett. 2008;439(3):256–9.
Brainard GC, Hanifin JP, Warfield B, Stone MK, James ME, Ayers M, Kubey A, Byrne B, Rollag M. Short-wavelength enrichment of polychromatic light enhances human melatonin suppression potency. J Pineal Res. 2015;58(3):352–61.
Enezi J, Revell V, Brown T, Wynne J, Schlangen L, Lucas R. A “melanopic” spectral efficiency function predicts the sensitivity of melanopsin photoreceptors to polychromatic lights. J Biol Rhythms. 2011;26(4):314–23.
Price LLA. Report on the First International Workshop on Circadian and Neurophysiological Photometry, 2013. International Commission on Illumination, 2015 CIE TN 003. 2015.