Spot the Difference

Pattern-separation memory exercise. Study a series of creatures, then decide whether each test image is new, an exact repeat, or similar but changed.

How it works

This exercise asks you to distinguish similar visual memories. Watch the study images before choosing your answer in the test phase.

Read the in-game instructions before beginning. You can return home between exercises; there is no requirement to finish all four in one visit.

Understanding your result

Your result describes performance on these images, not a clinical measurement of your hippocampus or everyday memory.

Practice effects in a game do not by themselves prove improvement in everyday memory or prevention of cognitive decline. If you are concerned about a change in memory, speak with a qualified health professional.

Cost and saved progress

This exercise is free. It runs in a modern browser, requires JavaScript, and has no sign-up. Your saved game progress remains on this device in this browser. Clearing browser data can remove it.

Choose another memory exercise or learn about limbr.