It's clearly useful to visually distinguish objects which reflect 400nm light and objects which reflect 700nm light. Colour sensations is how we do th...
You seem to be under the impression that there’s a way things look distinct from the way things look to us. That makes as much sense as saying that th...
I was including black, white, and grey as colours. But if we're excluding them and NOS4A2 is asking what the world looks like to someone with complete...
Not sure what you mean by "how it really looks", just as I wouldn't be sure what you'd mean by "how it really smells" or "how it really tastes". Yes, ...
No, and nor is my claim that colour is a fiction. My claim is that pain and colour are sensations, and the fiction is that colour is not a sensation b...
Maybe that's true, but I'm more arguing against those who seem to be saying that because we say such things as "the box is red" then it must be that t...
We see a red box and a blue box. The colour is the relevant visual difference between the two. I don't think that this visual difference has anything ...
All I am saying is that a deaf illiterate mute can see the difference between a red box and a blue box. That visual distinction has nothing to do with...
I have simply quoted what the scientists have said about colour. I'll do it again for you: As the SEP article on colour explains: If you disagree with...
I haven't claimed otherwise. I have explicitly stated that ~700nm light is the usual cause of red colour experiences (because it is the usual cause of...
The ball just has a surface layer of atoms with an electron configuration that absorbs and re-emits particular wavelengths of light; these wavelengths...
And as I've said, you're welcome to only use the verb "to see" in that sense if you like, but there's nothing wrong with the rest of us being more inc...
All that is required to have a visual experience is for there to be the appropriate neural activity in the visual cortex, and all that is required to ...
But other mechanisms such as a cortical visual prosthesis can help (or will be able to help in a few decades). Much like a cochlear implant helps wher...
They are seeing in the sense of having a visual experience but not seeing in the sense of responding to and being made aware of some appropriate exter...
I'm not confusing myself because I haven't claim that "hearing voices" isn't a euphemism for "hallucinate". I am simply saying that it is ordinary in ...
It's not equivocation to say that the schizoprenic hears voices. That's just the ordinary way of describing the phenomenon. Verbs like "to see" and "t...
Why does that matter? It is still normal to describe someone with a cochlear implant as hearing things, and the same for those with an auditory brains...
Colour is the look, not a wavelength of light (which you seem to be saying here). There is usually a correspondence between the two, but dreams, hallu...
Although re-reading this, maybe I've misunderstood you. Are you saying that these are three distinct things? 1. 650-720nm light 2. The colour red 3. R...
Sure, like getting stabbed or burnt or whatever are elements for the emergence of pain experience(s). But pain is nonetheless the experience. My claim...
By this do you mean that 620-750nm light must have stimulated my eyes for me to see the colour red? Why do you think that? What’s the relationship bet...
Well, whether you’re convinced by it is irrelevant. What matters is that both a) I see a can of red Coke and b) the photo does not emit 620-750nm ligh...
No, what they're saying is that the subject sees colours when there is activity in the V4 and VO1 areas of the visual cortex. Normally these areas are...
And what does that have to do with anything I have said here, in particular that comment that you replied to? I am simply reporting that "the major ph...
Not quite. I'm saying that colour and pain are percepts. We can still talk about tomatoes being colourful and stubbing one's toe being painful; we jus...
I don't know what you're talking about. This has nothing to do grammar. This has to do with physics and physiology. Maxwell knew better than you about...
Feeling pain does not entail a "Cartesian theatre" or a homunculus, even though pain is a sensation, and seeing colours does not entail a "Cartesian t...
I'm not committed to any metaphysics. I'm only committed to physics, and as the SEP article on colour explains, "the major physicists who have thought...
It's not circular, just as noting that the predicate "is painful" is used to describe things which cause pain mental percepts is not circular. The fac...
That's just begging the question. Rainbows are just refracted light, with longer wavelengths at the top and shorter wavelengths at the bottom. It's an...
But plaster walls don't emit (visible) photons, which is why I can't see them at night when I close the curtains and turn off the light. Like most oth...
I think the term you're looking for is "fluorescent", not "pigmented". If we're talking about the powder, conventional pigments don't emit light (alth...
It baffles me that people still think it's a matter for philosophy, as if we can use a priori reasoning to figure out the nature of sensory experience...
It is an arbitrary fact about English that the adjectives are "red" and "painful" rather than "redful" and "pain". If language had developed different...
Yes, that's what I said in that previous post: "the predicate 'is red' is used to describe objects which cause red mental phenomena." But our ordinary...
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