Researchers in the field of active perception study how sensory processes coalesce with
motor actions to extract information from the world. Such actions intrinsically alter perceptual …

High visual acuity is essential for many tasks, from recognizing distant friends to driving a
car. While much is known about how the eye's optics and anatomy contribute to spatial …

Diabetic retinal disease remains a leading cause of vision loss despite currently available
screening methods, ocular treatments, and efforts to control metabolic dysfunction. It is now …

Humans use rapid gaze shifts, known as saccades, to explore visual scenes. These
movements yield abrupt luminance changes on the retina, which elicit robust neural …

A mathematical model and a possible neural mechanism are proposed to account for how
fixational drift motion in the retina confers a benefit for the discrimination of high-acuity …

Both exogenous and endogenous covert spatial attention enhance contrast sensitivity, a
fundamental measure of visual function that depends substantially on the spatial frequency …

Humans blink their eyes frequently during normal viewing, more often than it seems
necessary for keeping the cornea well lubricated. Since the closure of the eyelid disrupts the …

In the pupillary light response (PLR), increases in ambient light constrict the pupil to dampen
increases in retinal illuminance. Here, we report that the pupillary reflex arc implements a …

What determines spatial tuning in the visual system? Standard views rely on the assumption
that spatial information is directly inherited from the relative position of photoreceptors and …

A commonly held belief suggests that turning one's attention away from pain reduces it,
whereas paying attention to pain increases it. However, some attention-based therapeutic …