Fwd: Amazing but true ...........try it !!!

[Bobby Kunhu]

Can someone explain this?

---------- Forwarded message ----------
From: Subid K.S. <avpush...@gmail.com>
Date: 2009/2/22
Subject: Fwd: Amazing but true ...........try it !!!

# If your brain works normally this is neat. # This is another example of an amazing illusion!!! The last sentence is so true. If your eyes follow the movement of the rotating pink dot, the dots will remain only one color, pink. However if you stare at the black ' +' in the centre, the moving dot turns to green. Now, concentrate on the black ' + ' in the centre of the picture. After a short period, all the pink dots will slowly disappear, and you will only see only a single 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.   Send this to all of your friends and amaze them. #   Hashimܓ

       

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Bobby Kunhu http://community.eldis.org/myshkin/Blog/

[Jyothi TM]

agreed with the sender's comments. They do seem true but its not the whole truth. How many times have you bumped into objects in the room while navigating or how many times have your hand gone astray while moving to pick up a particular object from an assortment. One doesnt have to be blinded with optimism to notice that the number of times we go astray are rare. 

tRY THIS. 

place a 50 ps coin and a larger 2 rupee coin side by side now try picking them up or ask someone else to pick it up... notice how their fingers automatically size themselves up for the object in question..... Thats human brain!... 

Just coz u can trick it into believing something (because of certain constraints built into it by evolution), you cannot fool it everywhere and all the time

ps there is a perfectly scientfic explanation for the above illusion. understanding our limitations helps us understand much more than we possibly could. maybe i will write in detail if you feel i am on the right track

jyothi

[Bobby Kunhu]

eagre to know more, do write Jyothi

[Shaik Fiaz]

Nice Jyothi.

I did the coin experiment my self. What i noticed is: I am automatically positioning my finger tips larger than the size of the coin, and then move close to the coin untill I can sense the touch/grip of coin. There is a constant feedback from my eyes and skin(touch) which tells me how close I am to grip the coin. Nothing unconcious here. Is this what you mean by automatic?

I am eager to here your explanation for the illusion.


Shaik Fiaz,
Ph.D student,
University of Groningen,
The Netherlands.

"People are afraid to pursue their most important dreams, because they feel that they don't deserve them, or that they'll be unable to achieve them."---The Alchemist

2009/2/24 Bobby Kunhu <bobby...@gmail.com>

[Jyothi TM]

by automatic i meant unconsciously. thats how the brain works. it gives you the results but never the access to the calculations itself. Regarding the coin you are right about the feedback.

Now getting back to our question on perception...vision etc...i would like to recoommend a great book titled "How the mind works" by Dr. Steven Pinker..

 

When your eyes are focused on the pink dots, you see then going around the imaginary centre occupied by the + sign. When you focus on the + sign, you see an approx green dot moving around. i guess the answer would involve how the eye recieves visual stimulus and the brain processes visual information. Maybe part of the answer could also be that pink when mixed with the colour of the background (which is some shade of light blue) give you a shade of green. which we see when we focus on the  +

[Jyothi TM]

sorry shaik another think its never a good idea to do the experiment on yourself !

 

when you run to catch a cricket ball hurtling towards the boundary, 

you have calculated the velocity at which its traveliing, you are running , your paths, how best to achieve your goal (an interception) etc. you even have a projected result wheter its worth the effort or not. these calculations are made for you  and the results merely seep into the conscious realm.

[Bobby Kunhu]

a response from another listserv

Hello Bobby ,

Thanks for sending this . Long back i got another forward like this
which shows how brain reads words .

For example , take any english word : beautiful

even if we write it as "baueitufl" (with last and first letter being
the same and the middle letters can be of any order ) , we are able to
read it as "beautiful' only . it is applicable to all the words .