When was the concept for a lie detector first conceived?

When was the concept for a lie detector first conceived?

• A. 1650
• B. 1730
• C. 1800
• D. 1900

Answer: (B)

The concept for a lie detector can trace its roots back to the early 18th century. In 1730, an Italian scientist named Giovanni Alfonso Borelli posited that physiological responses could be indicative of truthfulness or deception. This laid the groundwork for a more structured approach to deception testing, which would later evolve into the polygraph. The development of a functional lie detection device occurred much later, with the patenting of the modern polygraph in the early 20th century. Thus, identifying the year 1730 as the point at which the idea was first conceived aligns correctly with the historical context of this development in forensic science.

The concept for a lie detector can trace its roots back to the early 18th century. In 1730, an Italian scientist named Giovanni Alfonso Borelli posited that physiological responses could be indicative of truthfulness or deception. This laid the groundwork for a more structured approach to deception testing, which would later evolve into the polygraph. The development of a functional lie detection device occurred much later, with the patenting of the modern polygraph in the early 20th century. Thus, identifying the year 1730 as the point at which the idea was first conceived aligns correctly with the historical context of this development in forensic science.