title: Behavioral and physiological measures in the detection of concealed information.
abstract: The authors examined the incremental validity of the reaction time (RT) measure beyond that of skin conductance response (SCR) in the detection of concealed information. Participants performed a Stroop-like task in which they named the color of critical and neutral words. Results show that the SCR highly differentiated between the relevant and neutral words. However, the RT demonstrated a significant differentiation only when the critical words denoted personally significant items (e.g., one's own name) and not when they denoted crime-relevant items related to a simulated crime. In both cases, combining the 2 measures yielded no advantage over the use of SCR alone. Thus, although behavioral measures may differentiate between relevant and neutral information in some cases, their practical use is questionable.
authors.affiliation: Department of Psychology, The Hebrew University of Jerusalem, Jerusalem, Israel. gronau@nmr.mgh.harvard.edu
authors.forename: Nurit
authors.initials: N
authors.lastname: Gronau
authors.forename: Gershon
authors.initials: G
authors.lastname: Ben-Shakhar
authors.forename: Asher
authors.initials: A
authors.lastname: Cohen
mesh_terms: D000328:Adult; D005260:Female; D005712:Galvanic Skin Response; D006801:Humans; D008014:Lie Detection / Q000523:psychology*; D008297:Male; D011594:Psychometrics; D011930:Reaction Time; D014342:Truth Disclosure; D014796:Visual Perception