Published online by Cambridge University Press: 05 June 2012
Overview: Concealed information is typically assessed with physiological measures. To overcome the limitations of physiological measures, an assessment using response latencies has been proposed. At first sight, research findings on response latency-based concealed information tests seem inconsistent. Our procedural analysis of the various latency-based tests indicates that tests based on a manipulation of relevant stimulus-response compatibility, such as the oddball task (Farwell and Donchin, 1991; Seymour et al., 2000), have typically produced robust results. These results are promising, but need to be extended with research examining vulnerability to faking and performance under more realistic circumstances.
A wide range of physiological indices have been registered in order to detect concealed information: skin conductance, heart rate, respiration, pulse volume, facial temperature, event-related potentials, and cerebral blood oxygenation. Laboratory studies have typically produced large effect sizes, confirming the validity of concealed information measures that are based on these indices (Ben-Shakhar and Elaad, 2003; Gamer et al., 2008; Langleben et al., 2002; Rosenfeld, 2002). However, physiological measures have their limitations. First, none of these measures allows for perfect detection, leaving room for improvement. Second, certain functional characteristics of physiological indices (e.g., habituation, non-responding) can undermine the validity of concealed information tests, based on these indices. Third, all physiological measures require sophisticated and often expensive machinery. From this perspective, there may be merit in measures that are based on other types of indices.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.