Lifting condition: Familiarization events. The familiarization events shown in the lifting condition were identical to those in the sliding condition except that the actor lifted and lowered the object, instead of sliding it forward and backward. During the main-trial of each familiarization trial, the actor repeated the following sequence of actions until the trial ended: she lifted the object 15 cm above the floor (2 s), paused (1 s), lowered the object to its original position (2 s), and again paused (1 s).