Mental Rotation Test

What this test measures

Mental rotation measures spatial visualisation — the ability to turn shapes in your mind's eye. Two block figures appear, one rotated, and you decide whether it is the same shape turned or a mirror image. It is the consumer cousin of the classic Shepard–Metzler task. Figures are generated fresh every trial, so the test never repeats. Your score is the number correct in 90 seconds.

How to play

Compare the two figures and mentally rotate the right one onto the left. If they match, press SAME; if it is a flipped version that can never be rotated to match, press MIRROR. Answer as many as you can in the time limit.

How to improve

• Pick one distinctive feature and track where it lands after rotation.
• A mirror image can never be rotated to overlap — look for handedness.
• Trade a little speed for accuracy on the trickier angles.

Frequently asked questions

What does mental rotation measure? Spatial visualisation ability — mentally manipulating two- and three-dimensional shapes.

Are the shapes always different? Yes — each figure is procedurally generated, so you never see the same one twice.

Why does it matter? Mental rotation predicts performance in STEM fields, navigation, and many hands-on skills.