TABLE 7.

Exponential regression analysis of temporal trends in pupil diameter for each task phase.

	Window	p-valuea	Constantb	Time constantc
Task 1	Pre Onset	<0.001 [57.8]	5.02	−0.018
	Post Onset	<0.001 [39.2]	4.54	0.015
	Pre Offset	0.912 [0.0]	4.74	0.000
	Post Offset	0.018 [5.6]	4.76	0.005
Task 2	Pre Onset	<0.001 [18.3]	4.67	−0.013
	Post Onset	0.039 [4.3]	4.30	0.005
	Pre Offset	<0.0001 [16.4]	4.49	−0.009
	Post Offset	0.913 [0.0]	4.38	0.000
Task 3	Pre Onset	<0.001 [12.1]	4.53	0.009
	Post Onset	0.002 [9.9]	4.44	0.009
	Pre Offset	0.150 [2.1]	4.66	0.003
	Post Offset	0.029 [4.8]	4.83	0.004
Task 4	Pre Onset	<0.001 [39.3]	5.02	−0.012
	Post Onset	<0.001 [12.3]	4.90	−0.007
	Pre Offset	0.780 [0.1]	4.52	−0.001
	Post Offset	0.003 [8.8]	4.54	−0.006

^ap-values and (F-values). The notation “<0.001” means that the p-value is smaller than 0.001. ^bPupil diameter starting value for window. ^cExponential change in pupil diameter per second. Bold values indicate significance.