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Face Rotation shows a face turned by some angle and asks you to say how far it has been rotated. Faces are a special case in spatial reasoning: we are so tuned to upright faces that inverted ones become strikingly hard to process, an effect well documented in perception research. That makes them a revealing stimulus for a rotation task.
A face appears rotated from upright.
Judge the angle it has been turned through.
Select the matching rotation from the options.
Correct answers load harder angles.
Your score combines accuracy with response time.
Mental rotation applied to a highly familiar stimulus. Because you have a strong template for an upright face, the mismatch is easy to detect and the angle is hard to quantify — which separates 'noticing it is wrong' from 'knowing by how much'.
Use the eye line. A line through both eyes is the single clearest angle reference a face offers.
Compare against upright, not against the previous face. Anchoring on the last item introduces drift.
Near 180 degrees, judgement gets much less reliable for everyone. Slow down deliberately there.
Tilt your head slightly for the awkward angles. It is not cheating and it genuinely helps.
The face-inversion effect: we process upright faces holistically and inverted ones feature by feature, which is far slower. It is one of the most reliably reproduced findings in face perception.
The operation is the same. Mental Rotation uses abstract 3D shapes; this uses faces, which recruit specialised processing and behave differently.
Group differences in some mental-rotation tests are reported in the literature, but the overlap between groups is large and practice narrows the gap. It says nothing about any individual.
Yes — rotation tasks are among the more clearly trainable spatial skills.