How Marston's Harvard blood pressure experiments created the systolic deception test, inspired Frye v. United States, and laid the groundwork for modern polygraph science.
Read Article →Discover how the Progressive Era (1905–1915) created the scientific, cultural, and institutional foundations for modern polygraph technology through reform and innovation.
Read Article →Explore how Hugo Münsterberg pioneered forensic psychology and deception detection at Harvard, influencing polygraph science and courtroom testimony for over a century.
Read Article →Discover how William Moulton Marston's 1910s Harvard experiments measuring systolic blood pressure created the scientific foundation for modern polygraph testing.
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