Facial Skin Surface Temperature Changes During a 'Concealed Information' Test
| Autor: | Stuart M. Senter, Andrew H. Ryan, Andrew B. Dollins, Dean A. Pollina, James A. Levine, Ioannis Pavlidis, Troy E. Brown |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Male medicine.medical_specialty Deception Lie Detection Biomedical Engineering Reproducibility of Results Skin temperature social sciences Audiology Physiological responses Test (assessment) Facial skin Lie detection Face Image Processing Computer-Assisted medicine Forensic engineering Humans High definition Female Skin Temperature Longitudinal axis Psychology human activities |
| Zdroj: | Annals of Biomedical Engineering. 34:1182-1189 |
| ISSN: | 1573-9686 0090-6964 |
| DOI: | 10.1007/s10439-006-9143-3 |
| Popis: | When individuals who commit a crime are questioned, they often show involuntary physiological responses to remembered details of that crime. This phenomenon is the basis for the concealed information test, in which rarely occurring crime-related details are embedded in a series of more frequently occurring crime-irrelevant items while respiratory, cardiovascular, and electrodermal responses are recorded. Two experiments were completed to investigate the feasibility of using facial skin surface temperature (SST) measures recorded using high definition thermographic images as the physiological measure during a concealed information test. Participants were randomly assigned to nondeceptive or deceptive groups. Deceptive participants completed a mock-crime paradigm. A focal plane array thermal imaging radiometer was used to monitor SST while crime-relevant and crime-irrelevant items were verbally presented to each participant. During both experiments, there were significant facial SST differences between deceptive and nondeceptive participants early in the analysis interval. In the second experiment, hemifacial (i.e., "half-face" divided along the longitudinal axis) effects were combined with the bilateral responses to correctly classify 91.7% of participants. These results suggest that thermal image analysis can be effective in discriminating deceptive and nondeceptive individuals during a concealed information test. |
| Databáze: | OpenAIRE |
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