Reactions toward the source of stimulation.

Sixty-four 5s used their right hand to move a control handle to the right or left from the midline of the body depending on the ear in which they heard a 1,000cps tone. The 5s moved the handle toward the side of the ear stimulated for one block of SO trials (25 to each ear in a random sequence) and away from the side of the ear stimulated for another block. Reactions toward the stimulus source were significantly faster than reactions away. Reaction time was faster for reactions to the right, while movement time was faster for movements to the left.