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.