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I was wandering Slashdot.org this evening and ran across a discussion about

this page:

http://nfg.2y.net/games/ntsc/visual.shtm

According to it, humans (NTs) have weak sight when it comes to blue in

comparison to red or green, and quite a few visual comparisons are

offered. People in the discussion mentioned that they could see drastic

changes between altered green images, moderate changes for altered red

images, but almost no change at all for the altered blue. Strangely

enough, my ability to detect the changes in the " blue " images (or images

where blue was altered) was almost as good as for the other two colors, and

I could see moderate-to-drastic changes in *all* of the pictures.

Does anybody get a similar result? I'm curious now if this is an

autism-related sensory trait like my light/motion sensitivity, or if it's

just something bizarre about my color detection. (I've known for a while

that I seem to identify parts of the blue-mixed range differently from

others, but this is the first I've ever had evidence that I perhaps wasn't

just mis-identifying colors.)

DeGraf ~*~ blog: http://sonic.net/mustang/moggy

" An autistic person is no more a 'broken'

person then an HDTV is a 'broken' TV. " -- Kaiden Fox

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DeGraf <moggy@s...> wrote:

> According to it, humans (NTs)

> have weak sight when it comes

> to blue in comparison to red or

> green, and quite a few visual

> comparisons are offered.

When I read this last week, for a few seconds I felt quite hurt and

saddened at the remark. I thought to myself `but I'm human, even

though I may not be NT'.

I quickly realised that I misunderstood it and I had a good chuckle

with myself. I also found this temporary reaction quite fascinating.

(It seems that in this instance my visual perception is NT (ie human))

This also reminded me of my own visual colour sensations. I first

remember seeing different colour rectangles some years ago on a board.

They had a strange effect on my sight, so I asked a friend (I assume

he must have been NT) what effect he could see. He denied seeing

anything noteworthy, which surprised me.

I experimented to see if I could duplicate that effect:

http://fp.salaam.f9.co.uk/anaseyes.htm

To me, the red floats over the blue. This *work of art ©* (only

joking) makes me feel quite dizzy, when sitting close or standing at a

distance. Most of it looks like 3d floating objects. The blue and red

seem to move a bit with the movement of my eyes.

I just wondered if this was normal or not. My wife is away for a week

so I haven't got any other subjects to test it on.

Anas

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Message: 9

Date: Thu, 01 Jan 2004 00:08:29 -0000

Subject: Re: Sensing Colors

DeGraf <moggy@s...> wrote:

> According to it, humans (NTs)

> have weak sight when it comes

> to blue in comparison to red or

> green, and quite a few visual

> comparisons are offered.

When I read this last week, for a few seconds I felt quite hurt and

saddened at the remark. I thought to myself `but I'm human, even

though I may not be NT'.

I quickly realised that I misunderstood it and I had a good chuckle

with myself. I also found this temporary reaction quite fascinating.

(It seems that in this instance my visual perception is NT (ie human))

This also reminded me of my own visual colour sensations. I first

remember seeing different colour rectangles some years ago on a board.

They had a strange effect on my sight, so I asked a friend (I assume

he must have been NT) what effect he could see. He denied seeing

anything noteworthy, which surprised me.

I experimented to see if I could duplicate that effect:

http://fp.salaam.f9.co.uk/anaseyes.htm

To me, the red floats over the blue. This *work of art ©* (only

joking) makes me feel quite dizzy, when sitting close or standing at a

distance. Most of it looks like 3d floating objects. The blue and red

seem to move a bit with the movement of my eyes.

I just wondered if this was normal or not. My wife is away for a week

so I haven't got any other subjects to test it on.

eeeek!!

that should have had a health hazard warning. ghastly to see, even for a

second. dunno if nausea from colour mix or confusion or the blend of the two.

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> > According to it, humans (NTs)

> > have weak sight when it comes

> > to blue in comparison to red or

> > green, and quite a few visual

> > comparisons are offered.

>

> When I read this last week, for a few seconds I felt quite hurt

and

> saddened at the remark. I thought to myself `but I'm human,

even

> though I may not be NT'.

>

I'm not. :-)

(hey! wait a minute...)

* * *

: " You're all individuals! "

Crowd, chants in unison: " Yes, we're all individuals! "

Man, timidly speaks up, alone: " uh...I'm not. "

( " Life Of " )

* * *

Okay, that wasn't so relevant, after all.

You were saying?...

>

> I quickly realised that I misunderstood it and I had a good

chuckle

> with myself. I also found this temporary reaction quite

fascinating.

> (It seems that in this instance my visual perception is NT (ie

human))

>

> This also reminded me of my own visual colour sensations. I

first

> remember seeing different colour rectangles some years ago

on a board.

> They had a strange effect on my sight, so I asked a friend (I

assume

> he must have been NT) what effect he could see. He denied

seeing

> anything noteworthy, which surprised me.

>

> I experimented to see if I could duplicate that effect:

>

> http://fp.salaam.f9.co.uk/anaseyes.htm

>

> To me, the red floats over the blue. This *work of art ©* (only

> joking) makes me feel quite dizzy, when sitting close or

standing at a

> distance. Most of it looks like 3d floating objects. The blue and

red

> seem to move a bit with the movement of my eyes.

> I just wondered if this was normal or not. My wife is away for a

week

> so I haven't got any other subjects to test it on.

>

> eeeek!!

> that should have had a health hazard warning. ghastly to see,

even for a second. dunno if nausea from colour mix or confusion

or the blend of the two.

>

That confounding effect of primary red and blue (and certain

other color combinations as well) is very common on or off the

spectrum. It is well recognized as a " no-no " in website design,

though not well enough recognized, by my standards. I once did

a search for a particular document I needed for school, and the

only copy available online was done in bright primary blue on a

blinding primary red background! Horrible! Instant headache!

That's when I learned (quite against my will, given the time

constraints I was facing at the time) how to extract text from a

web page and put it into a readable form. Now, when I retrieve a

document from an online source, if it's important to me, I rarely

save it in its original form. Customize. Optimize. Personalize.

Nothing is sacred! (Except giving proper credit, that is.)

:-)

--DKM

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