Fig. 5From: Effect of quantity and intensity of pulsed light on human non-visual physiological responsesChanges (%) in pupillary constriction under three light conditions (mean ± SE). Average changes (%) in pupillary constriction after exposure to stimulus lighting 5 s. Greater pupillary constriction was observed under the high- and medium-irradiance conditions than under the low-irradiance condition. *p < 0.05Back to article page