Foveal color perception: Minimal thresholds at a boundary between perceptual categories
نویسندگان
چکیده
منابع مشابه
Foveal color perception: Minimal thresholds at a boundary between perceptual categories
Human color vision depends on the relative rates at which photons are absorbed by the three classes of retinal cone cell. The ratios of these cone absorptions can be represented in a continuous two-dimensional space, but human perception imposes discrete hue categories on this space. We ask whether discrimination is enhanced at the boundary between color categories, as it is at the boundary bet...
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A discussion of tonal categories relating to pitch perception discrimination thresholds focuses on the differences between pitch perception per se and the perception of tonal timing. In the light of several experimental studies on the perception of tonal timing categories in different languages, it is hypothesized that the perception of level tones can be related to the highly acute psychophysi...
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Categories can affect our perception of the world, rendering between-category differences more salient than withincategory ones — a phenomenon known as categorical perception (CP). Previous research has shown that basic color categories across a variety of languages yield CP in speakers of those languages. Here, we provide evidence that CP generalizes to color categories beyond the basic level....
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Categorical perception (CP) of color is the faster and/or more accurate discrimination of colors from different categories than equivalently spaced colors from the same category. Here, we investigate whether color CP at early stages of chromatic processing is independent of top-down modulation from attention. A visual oddball task was employed where frequent and infrequent colored stimuli were ...
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Roberson and Davidoff (2000) found that color categorical perception (CP; better cross-category than within-category discrimination) was eliminated by verbal, but not by visual, interference presented during the interstimulus interval (ISI) of a discrimination task. On the basis of this finding, Roberson and Davidoff concluded that CP was mediated by verbal labels, and not by perceptual mechani...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2012
ISSN: 0042-6989
DOI: 10.1016/j.visres.2012.04.006