Do We Really See What's There - Visual Perception

[Alex321]

Skilled and diligent drivers don't let their eyes rest on the same point, thus eliminating the chance of the mind disguising, editing or misrepresenting something.

Conversely the average driver is lazy and undisciplined and stares pretty much constantly dead ahead at a point in the intermediate distance and can easily fall foul of such a phenomenon.

I'd take issue with "lazy" there. Most drivers do that because they just don't know any better, not because they are lazy. They have never had the advanced training you have.

That sort of thing should be a part of basic driving school teaching, but it isn't. Driving schools teach you to pass the test, and that is something which isn't tested (and TBF might be difficult TO test).

 

[Drago]

No, they're patently lazy.

Nearly all were taught about in during their driving lessons.

That they choose to drive in the manner they do isn't because they were taught to stare dead ahead in the middle distance, or to indicate as a substitute for proper obs, etc.

Drivers don't speed or park on the path because they were not taught otherwise.

Thy do these things because it takes effort to do otherwise and they don't have the discipline to overcome that human trait.

They all received a Highway Code when they applied for their licence and the proper way of doing thing is discussed in there, so there is no excuse.

 

[wiggydiggy]

I cannot to this day see any magic eye pictures, though a lot of the images linked already do work.

 

[Ming the Merciless]

Nope.

Mind you, I could never the the dinosaurs just those magic eye picture things either.

 

[Ming the Merciless]

The black dots are in peripheral vision when you focus on the white dots.

Not even that, they start off white and then turn black as I focus in. Not even peripheral.

 

[mistyoptic]

As raised above, movement and detecting things is interesting, eg as in "Motion Induced Blindness" eg
View attachment 759761
Above is an animated gif where the background is rotating. I'm told the effect might not work on some types of phone & tablet screens (though for me works on my laptop, iPhone & iPad fine.

You stare at the central green flashing dot and some (or even all) of the yellow dots arranged in a triangle disappear. Keep staring and dots might reappear and others disappear. They don't just change like the OP image but completely disappear.

I came across this in a lecture about medical balance disorders in relation to research being done but it should work for most people. Seems reasons again related to brain filtering but the "disappearing dots" are caused by the background motion ie it doesn't work if you use the image still version.

Ian

Nice. Not seen that one before

 

[mistyoptic]

This one’s fun too

https://images.app.goo.gl/GxAtTn7oD6EfRyVf6

Instructions for the lilac chaser​

The image is below. Make sure you master each step before moving to next.

1. Follow the movement of the rotating pink dot with your eyes. What color do you see?

• You should only see one color: pink.

2. Now stare directly at the black + in the center. What happens to the moving dot?

• The moving dot should turn to green.

3. Now concentrate on the black + in the center. Stay very focused on the +. Does something happen to the dots?

• The pink dots should start to disappear. You may only see a single green dot rotating.

4. Finally, move your face close to the screen as you stare carefully at the +. Wait until the pink dots disappear, and you only see the green dot like in step 3. Now, slowly move your face away from the screen. What happens?

• You should see a green light show explode out from the pink dots.

 

[Pat "5mph"]

Not even that, they start off white and then turn black as I focus in. Not even peripheral.

Same for me!
Are we weird??
The second image though works as it should, for me.

 

[Ming the Merciless]

Same for me!
Are we weird??
The second image though works as it should, for me.

Same , maybe we are twins ?

 

[Conrad_K]

A whole lot of visual processing takes place low on the brain stem. That's how most illusions, like the picture in the original post, work.

The brain learns "shortcuts" over time. When I was a child I aquired a book with a bunch of pictures like that, but they were just pictures. A few of them, if I looked just right out of the corner of my eye, they'd shimmer or spin, but it wasn't until I was in my mid-20s that I could see the illusions described in the text.

 

[fritz katzenjammer]

Perception and the sleepy brain: When you get up at two in the morning ( because you’re over 50 and do these things ) and head into the john to do the 2am thing and you flip the light on to a 16 legged monster doing push ups…

friggin mirror.

 

[presta]

As raised above, movement and detecting things is interesting, eg as in "Motion Induced Blindness" eg
View attachment 759761
Above is an animated gif where the background is rotating. I'm told the effect might not work on some types of phone & tablet screens (though for me works on my laptop, iPhone & iPad fine.

You stare at the central green flashing dot and some (or even all) of the yellow dots arranged in a triangle disappear. Keep staring and dots might reappear and others disappear. They don't just change like the OP image but completely disappear.

I came across this in a lecture about medical balance disorders in relation to research being done but it should work for most people. Seems reasons again related to brain filtering but the "disappearing dots" are caused by the background motion ie it doesn't work if you use the image still version.

Ian

That looks quite similar to having an ocular migraine (except that you don't need the motion in that case).