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Q: What is theory behind lie detection?
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What theory of perception proposes that detection of stimuli depends on a variety of factors?

Signal detection theory


What has the author Travis B Patterson written?

Travis B. Patterson has written: 'Lie detection via the polygraph' -- subject- s -: Forensic psychology, Lie detectors and detection


What has the author Richard W Hughes written?

Richard W. Hughes has written: 'The selective suitability of subjects in lie detection using the psychogalvanic reflex' -- subject(s): Lie detectors and detection


What is a signal detection threshold?

Detection theory allows one to quantify the ability to discern between information bearing patterns and random patterns that causes confusion in the patterns. In electronics, detection theory is often called signal recovery.


Which theory emphasizes that personal expectations and motivations influence the level of absolute thresholds?

signal detection theory


What has the author Iickho Song written?

Iickho Song has written: 'Advanced theory of signal detection' -- subject(s): Signal detection


Who is the pioneer of lie detection pholygraph?

One of the earliest devices was developed in 1885 by Cesar Lombroso


How accurate are lie detection technologies?

Lie detection technologies are not especially accurate; the polygraph test is the iconic method and is considered unreliable by the US National Academy of Sciences. It measures quantities like heart rate, which can fluctuate in response to stress. This stress may be the result of lying, or the result of taking a polygraph test, which is itself stressful. Other lie detection technologies exist, such as voice analysis, but no such method has been proven reliable.


What has the author Ralph Dieter Hippenstiel written?

Ralph Dieter Hippenstiel has written: 'Detection theory' -- subject(s): Mathematics, Signal processing, Electronic surveillance, Digital techniques, Signal theory (Telecommunication), Detectors, Signal detection


What is the tissue called behind your lips?

Behind your lips lie the gums.


What is the signal detection theory?

a theory predicting how and when we detect the presence of a faint stimulus ("signal") amid background stimulation ("noise"). Assumes there is no signal absolute threshold and detection depends partly on a person's experience, expectations, motivation, and level of fatigue.


What is the scientific theory behind cell theory?

The scientific theory behind cell theory is that it explains the fundamental properties of all cells. The cell is the basic unit of all living organisms.