OPTICAL ILLUSIONS AND PUZZLES BOOK 350 PUZZLES
Part No: S41502
Manufacturer:
Stock No: 5091-AE1
SKU No:247375
Stock Number: 5091-AE1    $7.95
PUZZLES 106

Image is for illustrative purposes only. Please refer to product description.

$7.95 CAD
Featuring over 350 optical illusions, trick images, and puzzles, this fun book will challenge your mind and entertain you for hours! The perfect activity book for grown-ups, this engaging book of puzzles makes a great gift.

Look at the image above, it's not animated. Don't believe me? Try staring at just one part of the image and you'll see it will stop moving.

This is an example of a "peripheral drift illusion." It is thought that this illusion occurs because of the slight differences in time it takes to process different luminances (how intense the light is from a particular area). This slight lag in mental processing tricks the brain into perceiving movement that isn't really there.