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-   -   Does your brain work? (http://www.chiefdelphi.com/forums/showthread.php?t=47829)

KenWittlief 07-06-2006 21:39
Re: Does your brain work?
 
Quote:
Originally Posted by Beth Sweet
Just something that my uncle sent me that I thought was cool.
I Must serve Uncle.

Must give Uncle all my money.

Must give Uncle my car.

Must give Uncle my Hobie.

Must give Uncle all my passwords.

Graham Donaldson 07-06-2006 22:23
Re: Does your brain work?
 
Quote:
Originally Posted by Bill_Hancoc
...as Adam Savage from mythbusters says..."I reject your reality and substitute my own"
I LOVE that show! And yes, I completely agree with you, I will substitute my own reality. I'd love to say I hate when people prove that, for example, the two squares are the same color, because that ruins the fun, but I can't, because it's really cool to see the tricks brains play on you. Darn brains! Who needs 'em? Jellyfish get along fine!

...OK definitely random. Oh well.

The Canuck

kio_chan176 07-06-2006 22:35
Re: Does your brain work?
 
Quote:
Originally Posted by Beth Sweet
Just something that my uncle sent me that I thought was cool. I'm sure someone can engineer me how it works...

If your eyes follow the movement of the rotating pink dot, you will only see one color, pink.
If you stare at the the black + in the center, the moving dot turns to green.

Now, concentrate on the black + in the center of the picture. After a short period of time, all the pink dots will slowly disappear, and you will only see a green dot rotating.

It's amazing how our brain works. There really is no green dot, and the pink ones really don't disappear.
This should be proof enough, we don't always see what we think we see.

[Edit: You have to open the attachment for this to work]

My brain works just fine thank you. Something odd I noticed, when I take my focus off the cross and move it just a little off the side of the cross, I see a ring of green dots against the grey background. That ring of green dots aren't there to begin with, it just happens to be there because of my vision (or maybe my eyes suck more than I think they do). This all has to do with how our eyes recieve light. Of course that's how we're able to see to begin with, but when thing's are flashing/moving/any other activity, then that might affect how we perceive colors.

As for the box thing, shadows are quite interesting. I don't know what to say about that.

To think I learned how our eyes work on a Food Network show. XP But then again, you probably want an opinion from someone who has 20-20 vision. Haha.

MissInformation 07-06-2006 23:53
Re: Does your brain work?
 
Here's an interesting one someone sent me yesterday:

http://www.johnsadowski.com/big_spanish_castle.html (just follow the directions). It's not as neat as the other two, but still cool! Funny enough, I don't trust anything someone sends me that has directions for staring for any amount of time... Someone got me with one of those screaming sites once and I've never gotten over it... so when I was sent this one I turned off my volume. It's not a screamer, but if you don't trust me, just turn off your volume like I did.

Heidi

Beth Sweet 12-06-2006 23:22
Re: Does your brain work?
 
1 Attachment(s)
Thought I'd share just one more...

Cynette 13-06-2006 16:58
Re: Does your brain work?
 
Quote:
Originally Posted by Beth Sweet
...all the pink dots will slowly disappear, and you will only see a green dot rotating...
ow. Now my head hurts. Was there a warning label I missed? :yikes:

Cynette

p.s. The headache was worth it. Really cool effect!

BuddyB309 13-06-2006 17:09
Re: Does your brain work?
 
It has to do with whats called and after image. The cones in your eye that signal to the brain color only have an on or off switch. There are Red/green cones Blue/yellow cones, and some other color cones. The cones have to recharge after firing. So in the absent of a signal the brain thinks the cone is seeing the opposite color. If we follow the dots with our eyes we are using different cones all the time and our brain isn't fooled. But if we concentrate on the + our eyes are fixed and we are using the same cones all the time. So when the cone fires its signal that there is pink there it has to wait to fire again and when the dot disappears we see green.

Its the same thing as a camera flash in the dark. After your blinded you see that annoying green, pink, and white dot in front of your vision.

Bharat Nain 13-06-2006 18:14
Re: Does your brain work?
 
Quote:
Originally Posted by BuddyB309
It has to do with whats called and after image. The cones in your eye that signal to the brain color only have an on or off switch. There are Red/green cones Blue/yellow cones, and some other color cones. The cones have to recharge after firing. So in the absent of a signal the brain thinks the cone is seeing the opposite color. If we follow the dots with our eyes we are using different cones all the time and our brain isn't fooled. But if we concentrate on the + our eyes are fixed and we are using the same cones all the time. So when the cone fires its signal that there is pink there it has to wait to fire again and when the dot disappears we see green.

Its the same thing as a camera flash in the dark. After your blinded you see that annoying green, pink, and white dot in front of your vision.
He got it right. I learnt that in Psych.

JoeXIII'007 13-06-2006 22:27
Re: Does your brain work?
 
This is pretty cool... :cool:


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