Re: describing colours to a blind person..
^ Welcome to GS nowherenik.
Thats quite interesting - "using heat signatures" - but i am not quite sure if it works.
Re: describing colours to a blind person..
I'm a sceptic myself. I must admit though I'm curious to know about the dreaming. I mean it seems hard to imagine dreaming without visuals. I guess it would rely heavily on sound and touch. By the way do people smell when they're dreaming?
Re: describing colours to a blind person..
heat signature to describe color? it's atually the other way around. Color is used to describe heat levels (for example a heat map shows different intensity with different colors)
Re: describing colours to a blind person..
Heat gives of Infrared radiation which has a wavelength greater than the visible spectrum, (towards the red side of the rainbow), so heat signatures do have a scientific association with the colour red. Cold, however, hasn’t much to do with the colour blue.
That’s it from your science-wiz! 
Re: describing colours to a blind person..
for blind the sense of touch is more of convenience then assuming the colors.
an apple maybe recognized by it's shape n smell rather than it's color.
Re: describing colours to a blind person..
its got nothing to do with science, more emotion. it is impossible to get a blind person to see colour. The best one can do is use something that they are already familiar with to form associations. I can't smell but everyone tells me it's a bit like tasting the air through your noise. That i can kind of understand. people associate colour with emotions. heat can also be associated with emotions hence a common element. the idea is to explain colour not to show them colour.
Re: describing colours to a blind person..
that is called perception their vision is broadened this way
Re: describing colours to a blind person..
Its not difficult to give a shape to an object if a person knows the physical description of it (such as dimensions) and relative shape.
Re: describing colours to a blind person..
just tell them black is gothic
white is ike an angel
Re: describing colours to a blind person..
^^but how would they know what gothic or angel is ??
Re: describing colours to a blind person..
A shape yes, but a whole scene? Dreams can be abstract or about something / somewhere we know. How limitied is their ability to understand a scene? What is deemed importanted, the signs to reveal the space around them. how much detail can they have in a dream and are abstract dreams even possible?
Re: describing colours to a blind person..
**New device allows woman to see, even without eyes
**Pretty fascinating… have a read..
Robertson is blind, but this device allows her to see, not with her eyes but with her brain! Fifteen years ago, she lost both of her eyes in a car accident. She was just 19 years old.
**How it works?
**The device works in conjunction with a surgery that doctors perform to implant electrodes in the brain. A tiny camera that sits on the edge of a pair of glasses sends video signals into a computer. The computer processes the information and then sends it through two cables that actually plug into each side of the patient’s skull. An electrode inside the skull stimulates the back of the brain, which creates visuals images. The image is described as what you might see when a flash bulb goes off in front of your eyes. It is also compared to the series of dots you’d see on the scoreboard at a sports stadium. Kenneth Smith, M.D., from Saint Louis University Medical Center, says: “They are really seeing. The brain is getting impulses just like when you and I see, except they’re only seeing a very tiny outline – a little white pattern of white dots.”
Re: describing colours to a blind person..
u cant describe colors to them..
Re: describing colours to a blind person..
Blind people do dream. What they see in their dreams depends on how much they could ever see. If someone has been totally blind since birth they only have auditory dreams.
Re: describing colours to a blind person..
Since colours are kind of conventions for us i.e. You experience them and name them, so before naming them seeing them is required.
Whatever way of explaining those colors is used, i.e. by giving a sense of shape, and then telling them different things, we can't generate those colorfull images in there minds, because they aren't there.
Re: describing colours to a blind person..
they might dream of shapes and figures created from their imagination…
i dont buy that its just sound and no images in the dreams…
Re: describing colours to a blind person..
Hey, you're using the Mary's Room thought experiment, aren't you? I would just tell the blind man it's beyond his imagination because he can't see color. And speaking of blind people, do they see black only or what?
Re: describing colours to a blind person..
Even people with total colour blindness can see shades of grey. The most common type of colour-blindness is the red-green colour blindness where those affected cannot distinguish between red and green but still can identify other colours. It is incorrect to say that colour-blind people only see black and white.
Re: describing colours to a blind person..
^ cats are color blind . that is why they can see in the dark too !