منابع مشابه
Color category influences heterogeneous visual search for color.
Many previous studies have revealed chromatic characteristics of visual search using relatively simple stimuli. They suggested that color difference between a target and distractors was a crucial factor. However, it may not be applicable to natural environments that contain numerous colors. This study demonstrates the existence of a color-category effect on heterochromatic visual search. Color ...
متن کاملColor channels, not color appearance or color categories, guide visual search for desaturated color targets.
In this article, we report that in visual search, desaturated reddish targets are much easier to find than other desaturated targets, even when perceptual differences between targets and distractors are carefully equated. Observers searched for desaturated targets among mixtures of white and saturated distractors. Reaction times were hundreds of milliseconds faster for the most effective (reddi...
متن کاملDistractor heterogeneity, attention, and color in visual search
Experiments were designed to investigate the effects of set size and variation in the chromaticity of distractor stimuli on thresholds for detecting a target stimulus that differed from distractors only in chromaticity. Distractor chromaticities were selected from a line in the isoluminant color plane and targets were selected from lines approximately orthogonal to the distractor line. With uni...
متن کاملColor, form and luminance capture attention in visual search
Extant models of visual attention predict that a salient element should produce a bottom-up activation leading to a stimulus-driven attentional capture (e.g. Cave, 1999). However, apart from onset, previous works manipulating set-size in visual search failed to provide empirical evidence for this kind of capture. By varying target-singelton distance method, based on a single set-size, we explor...
متن کاملCompetition-induced visual field differences in search.
Do visual field effects point to differences in cortical representation, or do they reflect differences in the way these representations are used by other brain regions? This study explored three attributes of visual search that provide strong evidence in favor of differences in use. Competition refers to the finding that visual field differences in search efficiency are larger in whole- than i...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1997
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03211905