No effect of moderate alcohol intake on the detection of concealed identity information in the laboratory.

Scientific Reports
Kristina SuchotzkiMatthias Gamer

Abstract

The Concealed Information Test (CIT) enables the detection of certain (e.g., crime-relevant or personal) information, even if participants aim to conceal their knowledge. The current preregistered study investigated whether previously observed impairing effects of alcohol intoxication on participants' performance in a reaction time CIT (RT CIT) field study also translate to a laboratory environment. In contrast to the previous study of Suchotzki and Gamer (Sci Rep 8:7825, 2018) in which alcohol consumption was voluntary and self-administered, the current study used a randomized assignment of participants to either an alcohol group (n = 88; receiving a drink with 3 cl alcohol) or a sober control group (n = 89; receiving a drink with just some alcohol drops to hide group assignment). After drink administration, participants completed an RT CIT, in which they were instructed to hide knowledge of their own identity. Blood alcohol concentration (BAC) was estimated via breath alcohol ratio. In contrast to the previous field study, results revealed no differences in CIT-performance between intoxicated and sober participants. Aside from questioning the robustness of the result of the previous field study, our results also point to a nu...Continue Reading

References

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Nov 16, 2014·Alcohol and Alcoholism : International Journal of the Medical Council on Alcoholism·Kristina SuchotzkiBruno Verschuere
Feb 10, 2017·Psychological Bulletin·Kristina SuchotzkiGeert Crombez
Mar 25, 2017·Psychophysiology·Nathalie klein SelleGershon Ben-Shakhar
May 20, 2018·Scientific Reports·Kristina Suchotzki, Matthias Gamer

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