STUDIES IN LIE DETECTION. COMPUTER FEASIBILITY CONSIDERATIONS
Abstract
A series of experiments on various aspects of lie detection which have special reference to the possible use of a computer in lie detection are discussed. Significant results were obtained in a simulated theft experiment. The lie detection examiners were able to differentiate with significant accuracy among the thief, the lookout, and the innocent suspect. Independent raters, who based their decisions only on the physiological recordings, were able to attain the same degree of accuracy as the examiners. Of the three physiological systems employed, the psychogalvanic response was evaluated with greatest objectivity and was found to yield the most valid results. In the denial-of-actualcrime and in the denial-of-classified-information experiments, success in detecting lies was limited. The countermeasure techniques experiment indicated that individuals with a moderate amount of training can contaminate the physiological records with irrelevant responses which enable them to confuse the lie detector operator and thus elude detection. The Countermeasures Techniques experiment points up the possible sources of invalidity in the traditional lie detection procedures. Despite the positive findings, limitations in objectivity, uncontrolled invalidating influences, and non-standardized instrumentation in this field create a need for further definitive research before the computer can be considered as an integral component of the lie detection decision.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1962
- Accession Number
- AD0284902
Entities
People
- Joseph F. Kubis
Organizations
- Rome Laboratory