TY - JOUR
T1 - Hue selectivity of collinear facilitation
AU - Sato, Tomoharu
AU - Nagai, Takehiro
AU - Kuriki, Ichiro
N1 - Funding Information:
Funding. Japan Society for the Promotion of Science (JP17K13970); Cooperative Research Project of the Research Institute of Electrical Communication, Tohoku University (H28/A20).
Publisher Copyright:
© 2020 Optical Society of America
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Collinear facilitation (CF) is the improvement of the detection sensitivity of the target when two high-contrast flanking stimuli (flankers) have the same visual properties. While it is known that CF does not occur between achromatic flanking stimuli and chromatic targets, or vice versa, it remains unclear whether CF occurs when the hue of the target and flankers are different. We measured CF for Gabor stimuli defined in an isoluminant plane using stimuli defined by isoluminant colors along isolated cone-opponent axes and in two diagonal directions. The measured CF varied with the difference in hue between the target and flankers. Moreover, increased thresholds were also observed. These results suggest that CF exhibits hue selectivity and involves a suppression as well as a facilitation component. The hue selectivity profile of these factors infer that the CF cannot be simply explained by the assumption of two independent cone opponent mechanisms.
AB - Collinear facilitation (CF) is the improvement of the detection sensitivity of the target when two high-contrast flanking stimuli (flankers) have the same visual properties. While it is known that CF does not occur between achromatic flanking stimuli and chromatic targets, or vice versa, it remains unclear whether CF occurs when the hue of the target and flankers are different. We measured CF for Gabor stimuli defined in an isoluminant plane using stimuli defined by isoluminant colors along isolated cone-opponent axes and in two diagonal directions. The measured CF varied with the difference in hue between the target and flankers. Moreover, increased thresholds were also observed. These results suggest that CF exhibits hue selectivity and involves a suppression as well as a facilitation component. The hue selectivity profile of these factors infer that the CF cannot be simply explained by the assumption of two independent cone opponent mechanisms.
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U2 - 10.1364/JOSAA.382870
DO - 10.1364/JOSAA.382870
M3 - Article
C2 - 32400538
AN - SCOPUS:85083076944
VL - 37
SP - A154-A162
JO - Journal of the Optical Society of America A: Optics and Image Science, and Vision
JF - Journal of the Optical Society of America A: Optics and Image Science, and Vision
SN - 0740-3232
IS - 4
ER -