polygraph

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Related to polygraphist: Polygraphy, polygrapher

polygraph

an instrument for the simultaneous electrical or mechanical recording of several involuntary physiological activities, including blood pressure, skin resistivity, pulse rate, respiration, and sweating, used esp as a would-be lie detector

Polygraph

 

a multichanneled oscillograph for simultaneously recording readings of several physiological functions, such as respiration, blood pressure, brain and muscle bioelectricity, and motor reactions. The most common type is the general-purpose polygraph, a multichanneled oscillograph that records with ink various bioelectric and nonelectric processes by means of appropriate biological sensors and adapters. The polygraph is used in physiological experiments to investigate interacting and interdependent bodily functions; it is also used in clinical diagnosis.

polygraph

[′päl·i‚graf]
(engineering)
References in periodicals archive ?
The APA reports 1,800 professional members: the American Association of Police Polygraphists, 650; and the National Polygraph Association, 500.
trained Colombian polygraphists via the trilateral International Cooperation Division (ICD) to assist El Salvador's security forces with anticorruption efforts.
The United States funded the establishment of an RSS Polygraph Corps, which certified 27 polygraphists from the EC in December 2014.