(Received 25 February 1994; accepted 2 July 1994)
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Since 1986 there have been unparalleled advances in the psychophysiological detection of deception (PDD) processes and procedures. This paper traces the emergence of a new emphasis in PDD research; the development of forensic psychophysiology as an academic discipline; provides an overview of computerized polygraphs now in use for collecting physiological data; introduces statistical algorithms for analyzing physiological data; identifies new sensors and transducers currently under study; and describes a new instrument now under development.
Director, Department of Defense Polygraph Institute, Fort McClellan,
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