← Back to Focus & Attention

1-Back Letters

A stream of letters appears. Press Space when a letter is the same as the one immediately before it.

✅ Hits: 0
⚠️ False: 0

🧩 Recommended Brain Training Books & Memory Games

Disclosure: This section contains affiliate links. As an Amazon Associate, we earn a small commission from qualifying purchases at no extra cost to you — helping us keep this site free and fun for everyone.

Health Disclaimer: The information provided on this site is for educational purposes only and is not medical advice. Supplement products are not intended to diagnose, treat, cure, or prevent any disease. Always consult a healthcare professional before taking any new supplement.

Fun Memory Activity Book
Easy memory puzzles perfect for gentle cognitive workouts.
View on Amazon
SZJJX Word Game
Interactive word challenge with timer to test quick thinking.
View on Amazon
TaddToy 16 Bit Handheld Game
Portable console with retro games for light entertainment.
View on Amazon