TY - JOUR
T1 - The relationship between peripherally matched invariant hues and unique hues: A cone-contrast approach
AU - Panorgias, Athanasios
AU - Kulikowski, Janus J.
AU - Parry, Neil R A
AU - McKeefry, Declan J.
AU - Murray, Ian J.
PY - 2012/2/1
Y1 - 2012/2/1
N2 - A characteristic shift in hue and saturation occurs when colored targets are viewed peripherally compared with centrally. Four hues, one in each of the red, blue, green, and yellow regions of color space, remain unchanged when presented in the peripheral field. Apart from green, these peripherally invariant hues correspond almost exactly in color space with the unique hues. We explore this puzzling observation using asymmetric color-matching and color-naming experiments and computing cone contrasts for peripheral and central stimuli. We find that the difference between cone contrasts for the peripheral and central stimuli reaches a maximum at the chromatic axis corresponding to peripherally invariant green. We speculate that the effect is linked to a weakened signal from M-cones and probably associated with a reduced number of M-cones in peripheral retina. © 2012 Optical Society of America.
AB - A characteristic shift in hue and saturation occurs when colored targets are viewed peripherally compared with centrally. Four hues, one in each of the red, blue, green, and yellow regions of color space, remain unchanged when presented in the peripheral field. Apart from green, these peripherally invariant hues correspond almost exactly in color space with the unique hues. We explore this puzzling observation using asymmetric color-matching and color-naming experiments and computing cone contrasts for peripheral and central stimuli. We find that the difference between cone contrasts for the peripheral and central stimuli reaches a maximum at the chromatic axis corresponding to peripherally invariant green. We speculate that the effect is linked to a weakened signal from M-cones and probably associated with a reduced number of M-cones in peripheral retina. © 2012 Optical Society of America.
U2 - 10.1364/JOSAA.29.00A233
DO - 10.1364/JOSAA.29.00A233
M3 - Article
C2 - 22330384
SN - 1084-7529
VL - 29
SP - A233-A239
JO - Optical Society of America. Journal A: Optics, Image Science, and Vision
JF - Optical Society of America. Journal A: Optics, Image Science, and Vision
IS - 2
ER -