Ambient-task combined lighting to regulate autonomic and psychomotor arousal levels without compromising subjective comfort to lighting

Table 3 Dependence of psychomotor performances on the types of combined lighting

	Young		Elderly
	Low-low	High-low	Low-low	High-low
Pedal-selective PVT (PS-PVT)
RT, ms	411 ± 49	415 ± 49	654 ± 49	695 ± 49
False pedaling, %	6.8 ± 2.2	11.7 ± 2.2	5.5 ± 2.2	4.4 ± 2.2
Lapse frequency, %	3.6 ± 2.9	2.6 ± 2.9	14.3 ± 2.9	16.5 ± 2.9
Correction time, s	1.2 ± 1.4	0.8 ± 1.4	5.2 ± 1.4	2.0 ± 1.4
Visual continuous performance test (VCPT)
RT 1, ms	516 ± 23	515 ± 23	609 ± 23	602 ± 23
RT 2, ms	511 ± 26	510 ± 26	616 ± 26	605 ± 26
RT 3, ms	538 ± 26	518 ± 26	611 ± 26	613 ± 26
%RT 2, %	99 ± 2	99 ± 2	101 ± 2	101 ± 2
%RT 3, %	104 ± 3	101 ± 3	100 ± 3	102 ± 3
Lapse frequency 1, %	3.3 ± 0.7	4.2 ± 0.7	2.7 ± 0.7	3.6 ± 0.7
Lapse frequency 2, %	3.4 ± 1.3	3.6 ± 1.3	2.6 ± 1.3	1.4 ± 1.3
Lapse frequency 3, %	2.7 ± 1.3	2.4 ± 1.3	4.1 ± 1.3	1.3 ± 1.3
%Lapse frequency 2, %	123 ± 28	68 ± 28	96 ± 28	36 ± 28
%Lapse frequency 3, %	96 ± 29	65 ± 29	141 ± 29	29 ± 29

Data are least-square means ± standard errors of the means adjusted for the effect of experimental order. Low-low = low-CCT (4500 K) ambient lighting+ low-CCT (5000 K) task lighting; High-low = blue-enriched high-CCT (12000 K) ambient lighting + low-CCT (5000 K) task lighting; RT = reaction time; %RT i = 100 x (RT i)/(RT 1); %Lapse frequency i = 100 x (Lapse frequency i)/(Lapse frequency 1). RT = reaction time.

ISSN: 1880-6805