TY - JOUR
T1 - Investigating daytime effects of correlated colour temperature on experiences, performance, and arousal
AU - Smolders, K.C.H.J.
AU - de Kort, Y.A.W.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Research in the late evening and at night has shown that acute activating effects of light are particularly sensitive to short-wavelength light. Yet, findings on such effects during daytime are still inconclusive. This study (N=39) investigated effects of correlated colour temperature (CCT; 2700 K vs. 6000 K, 500 lx on the desk) on individuals’ experiences, performance, and physiology during one hour of exposure in the morning versus afternoon. Except for a higher subjective vitality in the 6000 K condition in the morning, results showed no significant activating effects, and even subtle performance-undermining effects in the high CCT condition. Moreover, participants rated both their mood and the light settings as less positive in the 6000 K vs. 2700 K condition. It is therefore questionable whether lighting solutions with commonly experienced intensity levels should provide a higher CCT during daytime office hours
AB - Research in the late evening and at night has shown that acute activating effects of light are particularly sensitive to short-wavelength light. Yet, findings on such effects during daytime are still inconclusive. This study (N=39) investigated effects of correlated colour temperature (CCT; 2700 K vs. 6000 K, 500 lx on the desk) on individuals’ experiences, performance, and physiology during one hour of exposure in the morning versus afternoon. Except for a higher subjective vitality in the 6000 K condition in the morning, results showed no significant activating effects, and even subtle performance-undermining effects in the high CCT condition. Moreover, participants rated both their mood and the light settings as less positive in the 6000 K vs. 2700 K condition. It is therefore questionable whether lighting solutions with commonly experienced intensity levels should provide a higher CCT during daytime office hours
KW - Alertness
KW - Cognitive performance
KW - Correlated colour temperature
KW - Daytime
KW - Vitality
UR - http://www.scopus.com/inward/record.url?scp=85014433007&partnerID=8YFLogxK
U2 - 10.1016/j.jenvp.2017.02.001
DO - 10.1016/j.jenvp.2017.02.001
M3 - Article
VL - 50
SP - 80
EP - 93
JO - Journal of Environmental Psychology
JF - Journal of Environmental Psychology
SN - 0272-4944
IS - Juni 2017
ER -