Color Compensatory Mechanism of Chromatic Adaptation at the Cortical Level.

Reportedly, some chromatic adaptations have extremely short temporal properties, while others have rather long ones. We aimed to dynamically measure the transition of a neutral point as an aftereffect during chromatic adaptation to understand the temporal characteristics of chromatic adaptation. The peripheral retina was exposed to a yellow light to progress color adaptation, while the transition of a neutral point was measured at the fovea.

Color Affects Recognition of Emoticon Expressions.

In computer-mediated communication, emoticons are conventionally rendered in yellow. Previous studies demonstrated that colors evoke certain affective meanings, and face color modulates perceived emotion. We investigated whether color variation affects the recognition of emoticon expressions.

Color criteria of facial skin tone judgment.

Facial skin tone recognition provides significant social and ecological information to humans. This study utilized a five-alternative forced-choice test design wherein participants were asked to judge which color (red, yellow, green, blue, or white) they perceived as too strong in stimulus skin tone images. The results showed that the participants' reference point of facial skin tone judgement was closer to the centroid facial skin tone observed on a daily basis than the chromaticity of measured or remembered facial skin tones of the observer.

Desaturation-Induced Brightness in Face Color Perception.

The distinctiveness of perception of face from nonface objects has been noted previously. However, face brightness is often confounded with whiteness in the beauty industry; few studies have examined these perceptual differences. To investigate the interactions among face color attributes, we measured the effect of saturation on brightness and whiteness in both uniform color patches and face images to elucidate the relationship between these two perceptions.

Evidence for a central component in adaptation to chromatic light.

Adaptation to environmental light allows our visual system to compensate for dynamic changes in the visual environment for avoiding everyday hazards (e.g., misreading traffic lights) and for accurate reaching.