Showing posts with label eyes saccade seen magic. Show all posts
Showing posts with label eyes saccade seen magic. Show all posts

Tuesday, 20 January 2009

Right in Front of Your Eyes!


I like seeing 'close up' magic, and can be fooled by distraction and patter as well as most,

Not surprisingly, the same things can catch us out on-road too.

But I bet you're not easily folled or caught out, are you?

No? You're one of the 'savvy' ones who sees through scams, and not a sucker like me.

I bet you can always see what's right in front of your eyes!

Really?

OK, then, here's a challenge for you:

Step away from the computer, and head for the nearest mirror.

Get close, perhaps less than a foot away, so nothing can distract you.

Look at your eyes.

Don't blink!

Can you see them clearly?

Now look sideways, then back to the front, then sideways again - all the time watching for your eyes moving.

After all, you can have missed anything, can you?

Well, actually you can.

It's called a 'saccade', and while your eyes are moving you can't 'see' - you're only aware when your eyes are fixed on a point. Your vision - what you see - is a series of 'fixed' views.

Remember this the next time you think "He must have seen me . . . !"


More on saccades

Final question: Since you've been reading this, how many times did your 'view' of the screen dim as you blinked? Unless you had a speck of dirt you were trying to remove, it's unlikely you'll have notived any blinking . . .

Ain't vision interesting? :)



The picture, by the way, is Man Ray's 'Glass Tears', one of my favourite surrealist artworks.