Sequence Memory
Remember the pattern. Repeat it back.
Watch the squares light up in a sequence, then repeat the pattern. Sequence gets longer each round.
The Zehano sequence memory test shows a series of tiles lighting up in a pattern on a grid. You repeat the pattern back. Each round adds one more step. The number of steps you can hold is a clean measure of your visuospatial working memory in this moment.
How to use the Sequence Memory Test
- Watch the sequence. Tiles will light up one after another on the grid. Watch carefully.
- Repeat the order. Click the tiles in the same order you saw them light up.
- Get it right. If you match the sequence, the next round adds one more tile.
- Continue. Keep going as long as you can. The game ends when you make a mistake.
- See your score. Your highest level reached is saved automatically.
Benefits
- Measures visuospatial memory. A specific cognitive system separate from verbal memory. Useful for tracking changes over time.
- Quick and clean. Most sessions take under three minutes. Easy to fit between other tasks.
- State indicator. Like reaction time, your score varies with sleep, stress, and hydration.
- Browser-only. Plays in your browser with no signup. Scores stay on your device.
The science
Visuospatial working memory typically holds three to five items at a time, slightly fewer than verbal short-term memory. The classic capacity studies trace back to Miller's 'magical number seven' research from 1956, though modern work places the true working-memory limit closer to four items. Sleep loss measurably reduces this capacity. The 2010 Lim and Dinges meta-analysis found short-term memory tasks among the most reliably impaired functions in mild sleep deprivation.
Practising the game improves your score on this specific test. Broad transfer to better memory in daily life is contested, as covered in our piece on working memory training evidence.
Tips for best results
- Try to chunk the sequence into smaller groups in your mind.
- Use spatial relationships (top-left, middle, bottom-right) rather than abstract numbering.
- Run multiple sessions and track your best, not your worst.
- Test at the same time of day for a fair comparison.