No. 23 Von Restorff Effect
Translation
The odd one out gets remembered.
When things look alike, the one that’s different sticks in memory.
Use it on purpose: make one thing stand out. Make everything stand out & nothing does.
Try this
Highlight one thing per screen. Just one.
Where it comes from
In 1933, German psychologist Hedwig von Restorff gave people lists of similar items with one odd one mixed in.
They remembered the odd one best.
It’s also called the isolation effect.
- Hedwig von Restorff, Psychologische Forschung 18 (1933)
- Laws of UX, “Von Restorff Effect” (lawsofux.com)
Save this
Save this for the next time someone wants every button to be the bright one.



