... discussed.Conclusion: The autonomic responses were effective to monitor biomedical effects induced byimage presentation. Further accumulation of data on multiple autonomic functions wouldcontribute ... parameters of the pupillary light reflex, i.e., the latency of the constric-tion, the velocity of constriction (vc), the velocity of re-dilation (vd), the acceleration of constriction (ac), and thetime ... rising or falling timecourse of the pupillary light responses. The maximalvelocity and acceleration of pupillary constriction, and themaximal velocity of re-dilation of the pupil in the lightreflex...