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As part of an experiment by William Marston, three women watch a man fire a revolver. The experiment was conducted in order to determine comparative emotions between the three women. A heart rate monitor spikes up. Followed by a blonde woman reacting to the gunshot, U.S.A., 1931. Dr. William Marston was a Harvard psychologist perhaps better known for creating the comic-book character Wonder Woman under the nom de plume "Charles Moulton." Marston believed that verbal deception could be detected by changes in the systolic blood pressure. He used a standard a blood pressure cuff to take measurements of systolic blood pressure during interrogation.