StoryNote logo

The Thatcher illusion is a visual phenomenon where it becomes difficult to detect changes in facial features when a face is upside down, even though these changes are obvious when the face is upright.

by /u/YJSubs in /r/blackmagicfuckery

Upvotes: 4085

Favorite this post:
Mark as read:
Your rating:
Add this post to a custom list

StoryNote©

Reddit is a registered trademark of Reddit, Inc. Use of this trademark on our website does not imply any affiliation with or endorsement by Reddit, Inc.