The current status of research in forensic psychophysiology and its application in the psychophysiological detection of deception.

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 new sensors and transducers currently under study; and describes a new instrument now under development.