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.