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  Effects of spatial cues on color-change detection in humans

Herman, J., Bogadhi, A., & Krauzlis, R. (2015). Effects of spatial cues on color-change detection in humans. Journal of Vision, 15(6): 3, pp. 1-16. doi:10.1167/15.6.3.

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Herman, JP, Author
Bogadhi, AR1, Author           
Krauzlis, RJ, Author
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1External Organizations, ou_persistent22              

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 Abstract: Studies of covert spatial attention have largely used motion, orientation, and contrast stimuli as these features are fundamental components of vision. The feature dimension of color is also fundamental to visual perception, particularly for catarrhine primates, and yet very little is known about the effects of spatial attention on color perception. Here we present results using novel dynamic color stimuli in both discrimination and color-change detection tasks. We find that our stimuli yield comparable discrimination thresholds to those obtained with static stimuli. Further, we find that an informative spatial cue improves performance and speeds response time in a color-change detection task compared with an uncued condition, similar to what has been demonstrated for motion, orientation, and contrast stimuli. Our results demonstrate the use of dynamic color stimuli for an established psychophysical task and show that color stimuli are well suited to the study of spatial attention.

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 Dates: 2015-05
 Publication Status: Published in print
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 Identifiers: DOI: 10.1167/15.6.3
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Title: Journal of Vision
Source Genre: Journal
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Publ. Info: Charlottesville, VA : Scholar One, Inc.
Pages: - Volume / Issue: 15 (6) Sequence Number: 3 Start / End Page: 1 - 16 Identifier: ISSN: 1534-7362
CoNE: https://pure.mpg.de/cone/journals/resource/111061245811050