Regan, Sarah E., Lee, Robert J., MacLeod, Donald I. A. and Smithson, Hannah E. (2018) Are hue and saturation carried in different neural channels? Journal of the Optical Society of America A: Optics, Image Science and Vision, 35 (4). B299-B308. ISSN 1084-7529
Full content URL: https://doi.org/10.1364/JOSAA.35.00B299
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Item Type: | Article |
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Item Status: | Live Archive |
Abstract
Chromatic discrimination data show that a smaller physical stimulus change is required to detect a change in hue than to detect a change in saturation [Palette 30, 21 (1968); Proc. R. Soc. London Ser. B 283, 20160164 (2016)], and, on this basis, it has been suggested that hue and saturation are carried in different neural channels [Color Space and Its Divisions: Color Order from Antiquity to the Present (Wiley, 2003), p. 311].We used an adaptation paradigm to test explicitly for separate mechanisms, measuring hue and saturation detection thresholds before and after adaptation to hue and saturation stimuli. Within-condition adaptation did not elevate detection thresholds significantly more than between-condition adaptation. We therefore did not find psychophysical evidence for a neural channel that extracts hue thresholds more effectively than the neural channel or channels that determine saturation thresholds. ©
Keywords: | Colour, Colour vision, Psychophysics, Vision, Vision adaptation |
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Subjects: | C Biological Sciences > C800 Psychology |
Divisions: | College of Social Science > School of Psychology |
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ID Code: | 31592 |
Deposited On: | 10 Apr 2018 09:45 |
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