title: Retroactive memory interference: a potential countermeasure technique against psychophysiological knowledge detection methods.
abstract: The concealed information test is designed to detect concealed knowledge through differential physiological responses elicited by the concealed items. This study was designed to examine the role of retroactive interference (RI) as a potential countermeasure that may weaken memory traces of the concealed items and attenuate the physiological responses elicited by them. A total of 120 participants committed a mock crime and were randomly assigned to either an interference condition, where they learned and retrieved an alternative mock crime, or a control condition. Further, each group was randomly assigned to one of three "time-delay" conditions. The results revealed that both memory for the mock crime details and the skin conductance responses (SCRs) to these details were attenuated under the memory-interference condition. Time of testing affected recall, but had no effect on the SCRs. In addition, the memory-interference manipulation had no effect on the respiration measure. Theoretical and practical implications of these results are discussed.
authors: Department of Psychology & Cognitive Science Studies, The Open University of Israel, Raanana, Israel. Electronic address: nuritgro@openu.ac.il.
authors: Nurit
authors: N
authors: Gronau
authors: Department of Psychology, The Hebrew University of Jerusalem, Israel.
authors: Lotem
authors: L
authors: Elber
authors: Department of Psychology, The Hebrew University of Jerusalem, Israel.
authors: Shai
authors: S
authors: Satran
authors: Department of Psychology, The Hebrew University of Jerusalem, Israel.
authors: Assaf
authors: A
authors: Breska
authors: Department of Psychology, The Hebrew University of Jerusalem, Israel.
authors: Gershon
authors: G
authors: Ben-Shakhar
mesh_terms: D000293:Adolescent; D000328:Adult; D003415:Crime / Q000523:psychology; D008192:Deception; D005260:Female; D005712:Galvanic Skin Response / Q000502:physiology; D006801:Humans; D019359:Knowledge; D008014:Lie Detection / Q000523:psychology*; D008297:Male; D008568:Memory / Q000502:physiology*; D009483:Neuropsychological Tests; D011597:Psychomotor Performance / Q000502:physiology; D011603:Psychophysiology / Q000379:methods*; D015656:Respiratory Mechanics / Q000502:physiology; D017603:Signal Detection, Psychological; D055815:Young Adult
keywords: Concealed-information test; Countermeasures; Knowledge detection; Retrieval-induced forgetting; Retroactive memory interference