"The dress" has provoked intensive commentary among psychophysicists, especially in relation to color vision. Researchers have shown that manipulating illuminance cues can influence the perceived colors of the dress. Here we investigate whether illusory shifts in brightness can shift color perception of the dress. Drifting achromatic gratings with fast off and fast on shading profiles are known...

Whether categorical perception of color is lateralized in the left cerebral hemisphere (e.g., Gilbert, Regier, Kay, & Ivry, 2006) or not (e.g., Witzel & Gegenfurtner, 2011) is still controversial. This ongoing debate, however, has been studied with visual search tasks, which seemed to produce residual laterality effects. The present study assessed whether a delayed discrimination task with divi...

This study aims to increase the retrieval efficiency of proposed image retrieval system on the basis of color content. A new idea of feature extraction based on color perception histogram is proposed. First, the color histogram is constructed for HSV image. Secondly, the true color and grey color components are identified based on hue and intensity. The weight for true and grey color components...

In synesthesia, stimulation of one sensory modality (e.g., hearing) triggers a percept in another, non-stimulated sensory modality (e.g., vision). Likewise, perception of a form (e.g., a letter) may induce a color percept (i.e., grapheme-color synesthesia). To date, the neural mechanisms underlying synesthesia remain to be elucidated. We disclosed by fMRI, while controlling for surface color pr...

In the early visual cortex V1, there are currently only two known neural substrates for color perception: single-opponent and double-opponent cells. Our aim was to explore the relative contributions of these neurons to color perception. We measured the perceptual scaling of color saturation for equiluminant color checkerboard patterns (designed to stimulate double-opponent neurons preferentiall...

In their article reporting the results of two experiments, Thorstenson, Pazda, & Elliot (2015a) found evidence that perception of colors on the blue-yellow axis was impaired if the participants had watched a sad movie clip, relative to participants who watched clips designed to induce a happy or neutral mood. Subsequently, these authors retracted their article (Thorstenson, Pazda, & Elliot, 201...

9 Color seems to be an unalienable property of objects. 9 Evolution, such that a species adapts to its environment, has driven the use of color by perception. 9 Human perception actively assigns colors to an observed scene. 9 Objects in the world respond to daylight by reflecting differently part of the incoming light spectrum. 9 Color is one of the main cues for segmenting objects in a scene.