That counterclockwise motion could be described by your own right hand, showing how, once again, the mirror appeared to exchange left-for-right, while leaving the up-and-down direction unchanged.

This time, the illusory hand-movement occurred only when the seen hand-shape matched that of the participant's own palm-down responding hand, but not otherwise. Even though no right/left judgments ...

The numbers on left-handed rulers move from right to left so lefties can see them clearly as they move their pens. When you hold a tape measure in your left hand, the numbers are upside down.

An estimated 260 million people around the globe live left-handed lives in a right-handed world, Leonardo da Vinci and Alexander the Great were lefthanded, and so were Babe Ruth, Michelangelo and ...