These data presented the averaged response times for participants taking part in a mental rotation task based upon Sheppard and Metzler (1971) using stimuli created by Ganis and Kievit (2015).
The study used a short design with 40 trials, only four rotation angles were used (0, 50, 100 and 150deg) each angle was repeated ten times using diffenent shape pairs. Half of the trials featured the same object and half the mirrored object.