Sequence Memory Test
This test measures your visual memory. One square lights up, then you tap the same square back.
Each round the sequence grows by one square. A wrong tap ends the test. Your score is the longest sequence you reproduced in the right order.
It is a digital take on the Corsi Block-Tapping Task, a classic of cognitive testing. Let's see how long a chain you can hold.
Your past attempts
What is sequence memory?
Sequence memory is visuospatial short-term memory: the ability to hold a string of positions in mind for a few seconds and play them back in the exact order they appeared. The format is a digital descendant of the Corsi Block-Tapping Task, which Philip Corsi introduced in 1972 as a spatial counterpart to the spoken digit span. In Alan Baddeley's working memory model (1992) this is the work of the visuospatial sketchpad, the subsystem that stores where things are and how they move, kept separate from the loop that rehearses words and sounds. The same ability runs quietly through daily life: following a route someone just traced on a map, copying a dance step you only saw once, or retracing which switches you flipped in a dark room. It is a narrow skill, but a real and measurable one, and the growing grid puts a clean number on it.
How the brain holds a sequence
Holding an order, not just a set of places, leans on the hippocampus, which binds the where and the when into a single track your memory can replay. Most people stretch their span through chunking: rather than nine separate taps, the brain packs them into groups of three or four, the way a long phone number breaks into blocks. Position matters too. Murdock (1962) described the serial position curve, where the first items (primacy) and the last items (recency) survive better than the ones in the middle, so a long sequence tends to fail somewhere around its centre. And because these are positions rather than words, you store them visually rather than by sound, a different code from the verbal loop you would use to memorise a phone number out loud. The electronic game Simon, released by Milton Bradley in 1978, trained exactly this loop: four coloured panels lighting in a pattern that grew one step at a time, daring you to echo it back. Della Sala and colleagues (1999) drew the same line, showing that visuospatial pattern span and the Corsi sequence draw on partly separate resources rather than one shared store.
What affects your score?
Age is the steady background factor. Visuospatial span climbs through childhood, peaks somewhere in the early to mid-twenties, then slips gently across adulthood, with a steeper drop after 60; Kessels and colleagues (2000) mapped exactly this in their Corsi norms. Attention is the sharpest lever in the moment, since the sequence falls apart the instant your focus breaks, which is also why fatigue and stress hurt: elevated cortisol blunts the hippocampus that stitches the order together. Some groups carry a real edge. Musicians and dancers rehearse ordered motor patterns for years and tend to score above average, and regular video gamers often show stronger spatial memory. Attention-related conditions such as ADHD can pull scores down, not because the memory store is smaller, but because holding focus across a whole sequence is harder.
What your score means
Your score is the longest sequence you reproduced before a wrong tap. Read the bands below as a rough guide, not a clinical scale:
- Level 4 and below is a low result here, and usually points to a distracted or tired run rather than a weak memory. A calm retry often climbs several levels.
- Level 5 to 6 sits below the middle, roughly the lower third of players, often a focus or first-board jitter issue more than a capacity limit.
- Level 7 to 8 is the healthy adult range and the median, where most people land; level 8 falls right at the midpoint of the distribution.
- Level 9 to 10 is a strong result, roughly the top quarter, an above-average visuospatial span.
- Level 11 and up is exceptional, the top tenth or higher, the kind of span you see in trained musicians and dancers.
Your percentile is read off aggregated results from this web-based test, and a single run is only a snapshot. Mood, sleep, and attention all nudge it, so treat one score as a measure of this attempt rather than a fixed ceiling on your memory. Run it a few times and keep your best honest result, not your first cold try, for a truer picture of where you stand.
Questions
Is this the same as the Chimp Test?
No, though both use a grid. The chimp test shows numbered tiles and asks you to click them in numerical order from a single glimpse, so it tests position plus number. Sequence memory reveals an order over time and asks you to reproduce that exact order, leaning harder on succession itself. The chimp test is closer to reading a snapshot; sequence memory is closer to following a chain.
Are musicians really better at this?
Often, yes. A musical phrase is an ordered pattern of finger and key movements, so years of practice train exactly the motor-spatial sequencing this test rewards. Pianists and drummers in particular tend to post higher spans, and trained dancers show the same edge from rehearsing choreography. It is a learned advantage rather than a fixed gift, which is part of why the gap narrows once a non-musician practises the format.
How does the score change with age?
It climbs through childhood, peaks somewhere in the early to mid-twenties, then slips slowly across adulthood, with a clearer drop after 60. Kessels and colleagues (2000) documented exactly this pattern in their Corsi norms. The decline is gradual and easy to offset on a given day with rest and focus, so a rested older adult can still beat a distracted younger one.
Why can I remember my phone unlock pattern?
Your phone unlock pattern is essentially a real-world version of Sequence Memory. Daily repetition triggers motor learning: conscious recall first, automatic finger movement second. Before smartphones, rotary phone numbers worked the same way. Frequently dialled numbers became "muscle memory" rather than digits to remember.
Does attention deficit affect the score?
A lot. The sequence holds together only as long as your focus does, so anything that fragments attention, whether ADHD, a noisy room, or a buzzing phone, tends to break the chain partway through. The memory store itself may be perfectly fine; the hard part is keeping it loaded across the whole sequence without a lapse. This is why a quiet room and a single honest attempt usually beat a distracted one.
Does practice help?
Partly. Learning to chunk the sequence into groups of three or four can lift you a level or two and steady your nerves on the first board. Beyond that your underlying span has a biological ceiling, so the gains level off fairly quickly. Practising mostly makes you better at this particular grid rather than at memory in general.