Groundbreaking arm amputation surgery makes a ‘phantom’ hand seem real

Re:Groundbreaking arm amputation surgery makes a ‘phantom’ h... by GordonS on Saturday September 18, 2021 @03:47PM (#28578717)

With the TV, I actually feel like I'm seeing colours, even if I don't know exactly what they are.

With the grass example, I'm actually not entirely sure! I mean, I obviously know that green is the correct answer, but that knowledge kind of makes me feel like I'm seeing green.

But colour blindness is kind of weird, because for any given thing/colour it's never just "I don't know" - I can narrow it down to a few options, and usually one of them is the correct one; like for a desaturated green, I might think it's grey, green or pink.

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Re:Groundbreaking arm amputation surgery makes a ‘phantom’ h... by Deestan on Saturday September 18, 2021 @04:07PM (#28578872)

I wonder if it is related to the gray/red strawberry effect https://www.illusionsindex.org/i/grey-strawberries

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Re:Groundbreaking arm amputation surgery makes a ‘phantom’ h... by seba_dos1 on Sunday September 19, 2021 @04:20AM (#28582656)

I don't think so - the strawberry effect is clearly chromatic adaptation at play and works because of cyan tint of the rest of the image (even the article you linked says so). Remember the black-blue/white-gold dress photo? That's the same thing - here the lightning is obvious, but in case of that dress the lightning conditions were ambiguous enough to make different people see different colors.

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