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Message: <blockquote data-quote="adhoc" data-source="post: 3436569" data-attributes="member: 131373">Thank you, David, and Ed, posts #129 and #130.David I disagree–only with your modest statement "Probably not a lot of help"!Ed, "plow through" is right! Much of it is beyond me, but on skimming over I find in Figure 3 something of what I seek. (For those who might wonder about  the y-axis offsets at first glance: "The uppermost curve in each panel is in the correct position; the other curves have been shifted downwards, successively, by 0.4 log unit.")David, this fact you state, which is borne out by those graphs, surprised me: "We do see things differently [with respect to color], but on the whole not different enough to account for the variety of opinion here [in this forum]."A few years back it was pointed up in this forum that often in an individual the color sensitivities of the left and of the right eye are different enough to be easily noticed. It is so in me, and I would have estimated by "gut reaction" that the graphs for my two eyes differ more than any two here! (From that I supposed that among different individuals when L and R are taken together the results vary more than they in fact do.) In this article left and right are not considered separately. I am afraid I don't remember whether those discussions on the eyes of an individual referred  to publications.Would you be able to comment also on that, i.e. whether in fact the difference between L and R in an individual is often more than the variation in the merged results (L and R together) among a "typical" set of different individuals (such as tested here)? It may not be very relevant to the present thread, I know."...Those are just a few of the physiological factors. I suspect many of the differences reported here [in the forum] are primarily psycological, which I know comparatively little about." Would you be able to explain a bit more the word "psychological" as used there with a simple example? If in two individuals some color X (on its own, or within an image) is "seen" about the same way after the "physiological" (optical-neural?) stage how might the "psychological" factors cause it to be then "seen" more differently? Or is this part of the "incredibly complex" process you mention (hence need too much time to explain here)? Thank you!PS. I should have added that I assume that variations between L and R eyes such as mine are still within "normal trichromatic color vision" as tested in the subjects of the article.</blockquote>

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