Dilating the pupils allow more quanta of light to impact the retina. Consequently, if one pupil
is dilated with a pharmacological agent (Tropicamide), the brightness of a surface under …

The expression “experimental phenomenology” seems to be an oxymoron. Phenomenology,
in fact, understood as the science of phenomena, appearances, or subjective experiences …

The virtual collection of human pictorial artifacts represents a treasure for vision scientists:
they are not only a showcase of possible—even if often improbable—visual experiences, but …

Pupil diameters were recorded with an eye-tracker while participants observed cruciform
patterns of gray-scale gradients that evoked illusions of enhanced brightness (glare) or of …

Visual-field (VF) anisotropy has been investigated in terms of spatial resolution of attention,
spatial frequency, and semantic processing. Brightness perception has also been reported …

This work concerns the subjective impression of perceived illumination. The purpose of the
study is to test attributes expressing qualitative experiences referring to ambient lighting that …

This work summarizes research conducted by the author over the years aimed at studying
the perception of light in achromatic settings carried out by combining an experimental …

The constancy of a 16-step achromatic Munsell scale was tested with regards to background
variations in two experiments. In experiment 1 three groups of observers were asked to find …

The feeling of being dazzled is evoked by images consisting of an achromatic uniform
center, surrounded by regions with luminance gradients. As the perceptual distinctness of …

The glare effect is a brightness illusion that has captured the attention of the vision
community since its discovery. However, its photometrical reversal, which we refer to here as …