Pupillometry is used to indicate the relative extent of processing demands within or between
tasks; however, this analysis is complicated by the fact that the pupil also responds to low …

The eye pupil is an organ optimally designed by evolution to control the amount of light
entering the eye so as to obtain sharp visual images and allow monitoring of as much as …

Of all peripheral measures of (neuro-) physiological activity, pupil size is probably the
easiest to access. Far beyond its well-known reaction to light incident on the eye, pupil size …

To analyze how pupillary responses reflect mental effort and allocation of processing
resources under several load conditions, the pupil diameter of 18 participants was recorded …

Pupillary response is associated with perceptual and cognitive loads in visual and cognitive
tasks, but no quantitative link between pupil response and the task workload in visual …

This paper reports experimental results on the index of cognitive activity (ICA), a recent
micro-level measure in pupillometry, which relates processing load to the frequency of rapid …

Degree of pupil dilation has been shown to be a valid and reliable measure of cognitive
load, but the effect of aural versus visual task presentation on pupil dilation is unknown. To …

Pupils respond to three distinct kinds of stimuli: they constrict in response to brightness (the
pupil light response), constrict in response to near fixation (the pupil near response), and …

Pupillometry has a rich history in the study of perception and cognition. One perennial
challenge is that the magnitude of the task‐evoked pupil response diminishes over the …

It has long been known that the diameter of human pupil enlarges with increasing effort
during the execution of a task. This has been observed not only for purely mechanical effort …