Why do we get dizzy when we spin?

Focus-Science and Technology - - Q & A -

MATT PAT­TIN­SON, DEVON

When you move your head, the ac­cel­er­a­tion is de­tected by hairs lin­ing the ac­cel­er­a­tion is det­edted by hairs lin­ing the side of fluid-filled tubes in your in­ner ear. If you spin for long enough, the brain gets de­sen­si­tised to the con­stant turn sig­nals from your ear, and ad­justs to zero them out. When you stop, the ears cor­rectly re­port zero turn­ing, but your brain is still ac­tively can­celling this out and so it thinks you are now spin­ning in the op­po­site direc­tion.

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