
Hybrid Imagery combines the low spatial frequencies of one picture with the high spatial frequencies of another. The end result is an optical illusion that can be perceived in two ways.
Can you see Albert Einstein?
Who else do you see?

Out-of-body experiences (OBEs) are typically associated with individuals who have certain kinds of dissociative or post traumatic disorders. Though people who are generally in good health also report having OBEs, the experience is poorly understood. Often, out-of-body experiences are met by others with skepticism and stigma.