Behavioral and physiological measures in the detection of concealed information

Nurit Gronau, Gershon Ben-Shakhar, Asher Cohen

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)147-158
Number of pages12
JournalJournal of Applied Psychology
Issue number1
StatePublished - Jan 2005
Externally publishedYes


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