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Korean J Leg Med > Volume 39(4); 2015 > Article
Korean Journal of Legal Medicine 2015;39(4):115-119.
DOI: https://doi.org/10.7580/kjlm.2015.39.4.115    Published online November 30, 2015.
Estimation of Eyewitness Identification Accuracy by Event-Related Potentials.
Keunsoo Ham, Chuyeon Pyo, Taeik Jang, Seong Ho Yoo
1Psychological Forensics Division, National Forensic Service, Wonju, Korea.
2Institute of Forensic Medicine and Department of Forensic Medicine, Seoul National University College of Medicine, Seoul, Korea. yoosh@snu.ac.kr
We investigated event-related potentials (ERPs) to estimate the accuracy of eyewitness memories. Participants watched videos of vehicles being driven dangerously, from an anti-impaired driving initiative. The four-letter license plates of the vehicles were the target stimuli. Random numbers were presented while participants attempted to identify the license plate letters, and electroencephalograms were recorded. There was a significant difference in activity 300-500 milliseconds after stimulus onset, between target stimuli and random numbers. This finding contributes to establishing an eyewitness recognition model where different ERP components may reflect more explicit memory that is dissociable from recollection.
Key Words: Electroencephalogram, Event-related potentials, P300, Witness, Memory, Recognition
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