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MagicSquare8-9 OP t1_iwed2nj wrote

Reply to comment by albasri in Can color perception be influenced by something other than what light enter the eye? by MagicSquare8-9

>But contextual information can.

I guess, for the purpose of my question, the issue is whether the contextual information must be delivered visually. For example, let's say the test subject look through a small hole into monochrome grey wall with no other contextual information, then the experimenter tells the subject that the wall is being illuminated by red/green/blue lighting (or maybe the 2 events occur in the opposite order). But the subject never see the light bulb itself or any other objects that would allow them to deduce the actual color of the lighting. Would that affect color perception?

My analogy is with perception of sound direction. Our perception of where the sound is coming from can be overridden by visual information, that's how ventriloquism works. So it seems plausible that visual perception can be overridden by non-visual information as well. This does happen for certain kind of visual perception, but color perception seems to be the most impervious to these effects, which is why I wonder.

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albasri t1_iwfgai9 wrote

In general, being told something should have no impact on our vision except in specific, ambiguous circumstances. We want our interperetations of the world to be stable.

One example could be the dress illusion. For some people, being told of an alternate interpretation of the scene causes the dress to appear to be a different color.

Another example might be Fuller et al. 2006. Here, an attentional cue affects the perceived saturation (but not hue) of a stimulus. This is sort of like being told something ("look over here") and having that affect your perception.

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