Polygraph Glossary Practice

Marey, Étienne-Jules

Definition

Étienne-Jules Marey (1830–1904) was a French researcher and early physiologist who invented the sphygmograph — a device for recording blood pressure and pulse on a smoked drum. His portable physiological recorder was a precursor to instruments later incorporated into the polygraph.

Who Was Étienne-Jules Marey?

Étienne-Jules Marey (1830–1904) was a French researcher and early physiologist who invented the sphygmograph — a device for recording blood pressure and pulse on a smoked drum. His portable physiological recorder was a precursor to instruments later incorporated into the polygraph.

Cross-references

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