Pupillometry has long been used as a measure of brain state. Changes in pupil diameter are
thought to coincide with the activity of neuromodulators, including noradrenaline and …

The number of research groups studying the pupil is increasing, as is the number of
publications. Consequently, new standards in pupillography are needed to formalize the …

A variety of psychological and physical phenomena elicit variations in the diameter of pupil
of the eye. Changes in pupil size are mediated by the relative activation of the sphincter …

This pilot study examined the relationships between the effects of sleep deprivation on
subjective and objective measures of sleepiness and affect, and psychomotor vigilance …

This article proposes a method based on wavelet transform and neural networks for relating
pupillary behavior to psychological stress. The proposed method was tested by recording …

Pupil studies in blind patients may give new insights into the function of the pupillary system.
Testing for sleepiness by means of pupillography might be used more frequently. Testing for …

Pupil dilation is mediated by a sympathetic output acting in opposition to
parasympathetically mediated pupil constriction. While light stimulates the parasympathetic …

Pupil size is regulated exclusively by the autonomic nervous system, and in darkness is
proportional to the level of central sympathetic tone. Spontaneous pupillary movements …

Resting state functional magnetic resonance imaging (rs-fMRI) is increasingly applied for the
development of functional biomarkers in brain disorders. Recent studies have revealed …

Objective measures of visual discomfort have the potential to quantify the individual's
sensations under discomfort glare conditions although such measures have yet to be …