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Abstract #2134

The Study of Deception and Truth Using Functional Magnetic Resonance Imaging (FMRI)

Ajchamon Thammachai1, Suwit Saekho2, 3, Nuanlaor Thawinchai4, Taipesrinivasti Bhakdikul5, Uten Yarach2, Sranut Chunpenmongkol2, Witaya Sungkarat6

1program in Forensic Science, Graduate school, Chiang Mai University, Chiang Mai , 50200, Thailand; 2Radiological Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Thailand; 3Biomedical Engineering Center, Chiang Mai University, Thailand; 4Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Thailand; 5Faculty of Law, Chiang Mai University, Thailand; 6Radiology, Mahidol University, Thailand

Deceptive detection using Functional magnetic resonance imaging (fMRI) is an exciting tool. The Peak of Tension Test (POT) can provoke deceptions about criminal details. We propose a new method to identify deception using the POT along with the fMRI by comparing the differences in brain activities between deception and truth telling in both POT and Relevant questions (R). The results demonstrated that right inferior frontal gyrus was more activated in the POT. Left inferior and middle frontal gyri were more activated during deception than those telling the truth.

Keywords

able according accuracy activation activations activities activity affects analyses analyze answer applied apply approved approximately articles biasness biomedical block blood board bold brain challenge chances conducted contrast currently deception deceptions deceptive deny dependent design details detection determining develop differentiate direct employing engineering extent fact faculty fingers forensic frontal functional functions gradient graduate great healthy human identify incident index individual inferior institutional investigate involvement judicial lobules maps matrix medical middle module motor movement needed neuronal objectively objects occipital oxygen package paradigm parametric participant participants pattern peak physical pick planar polygraph principal procedure procedures proceeding prominent protocol provoke psychiatry published question questions radiological radiology random randomly read recalled reducing relevant reproducible respond responses resting sample scanner scanning school sciences scientific separate seven signed slice software specifically statistical strength successfully superior systematically task tasks technology telling temporal tension therapy threshold told took truth truthful types uncorrected utilized valuable various volunteers whereas wide world years