McCollough Effect-HPPD-& drugless visual effects that can last hours or months!

[DigitalChaos]

WARNING Staring at these images for a while WILL alter aspects of your vision for hours, days, months... or longer. Read through the thread before you spend time trying to make this work.


I recently discovered the McCollough Effect: http://en.wikipedia.org/wiki/McCollough_effect

Here is a quick rundown on how to experience this.
Look at this image:


Black and white, right?

Ok, Now stare at this red square for a few seconds. Call it 5-10 seconds. Let your eyes move a little.
I added the big white border since it seems to help. That isn't what you should be staring at though :P



Now stare at this green square for the same time:


Now keep repeating this for several minutes. 5-10 will definitely make this stick for a while.



Eventually you will see something like this simulated image i created when you look at the original black and white image. You will see these colors on all black and white stripes with similar spacing. This will last you for several hour... possibly even days or months. I discovered this by a guy claiming that he was still seeing it 2 years later. I tried this last night and am still seeing it 24 hours later. It is definitely starting to fade though.

The red image creates the green that you see, the green creates the reddish image. This supposedly will also work only on one eye if you only do the induction on one eye.




Cool effect and the science behind it isn't clear. I personally think that this has to be inside the brain because of how long it lasts but more so, HPPD. There are a lot of similarities here with HPPD. Now, the McCollough Effect has been known since 1965 so I am probably wrong but I haven't seen any talk about the similarities here. A lot of people who do hallucinogens will see weird visual artifacts in patterns. Sometimes it lasts hours, days, months, or possibly forever.

Thoughts?

[refault]

Tell us when it wears off because it seems kinda spooky to do especially if it lasts that long

How long did you do the induction for?

[DigitalChaos]

Originally Posted by refault

Tell us when it wears off because it seems kinda spooky to do especially if it lasts that long

How long did you do the induction for?

I would say like 5-10min in total. I had the images in my view a bunch as I was uploading them, posting in other threads, etc. Kinda hard to keep track :P
I think I found a new genmay avatar though

[chuckybob]

Originally Posted by DigitalChaos

Eventually you will see something like this simulated image i created when you look at the original black and white image. You will see these colors on all black and white stripes with similar spacing. This will last you for several hour... possibly even days or months. I discovered this by a guy claiming that he was still seeing it 2 years later.

YOU SON OF A BITCH YOU SHOULD HAVE WARNED ME

ITS EVERYWHERE

[Biospider]

Originally Posted by refault

Tell us when it wears off because it seems kinda spooky to do especially if it lasts that long

How long did you do the induction for?

Not matter how long it lasts, it should only "work" on similarly shaped and sized images/patterns.

[DigitalChaos]

Originally Posted by Biospider

Not matter how long it lasts, it should only "work" on similarly shaped and sized images/patterns.

not exactly

the only thing that matters is the pattern, spacing between the lines, and the orientation. This is NOT the persistence of vision thing that occurs from just staring at something too long (like a lightbulb).


Like this image will work just as well when only using the tiny squares above as inductors:

[Biospider]

Originally Posted by DigitalChaos

the only thing that matters is the pattern, spacing between the lines, and the orientation. This is NOT the persistence of vision thing that occurs from just staring at something too long (like a lightbulb).

Isn't that what I said? Not in so many words but still...

[DigitalChaos]

well shape and size of the image don't matter

[aoeoae]

oh fffuuuu

someone on 4chan was posting these images a while back. it wasn't these exact images but similar, and the same principle. someone posted a long ass, correct-sounding explanation ending with something like, "tl; dr. these pics can genuinely damage your vision."