Effect of hypnotic time distortion upon free-recall learning.

An attempt is made, using hypnosis to modify the perception of the passage of clock time, to alter the amount of effective time available to subjects for free-recall learning. If effective time is manipulated successfully by the instructions designed to produce time distortion, subjects receiving hypnotic time distortion instructions designed to stretch 3 minutes into 10 should perform as well in a free-recall learning task as subjects allotted 10 minutes of nominal time and better than subjects allotted 3 minutes of nominal time for the task. This was found to be the case.