Characterization of EEG-P300 Signals in Drug Users

Abstract

The use of drugs for a long time can cause changes in the structure of the brain’s performance. Drug detection is usually done using laboratory testing methods such as urine, blood, and saliva tests. With the development of technology, changes in brain activity can be presented in the form of EEG signals. This study aims to locate the features of the P300 signal and the more effective stimulus to generate the P300 signal. The EEG input data uses secondary data consisting of 40 male participants with an age range of 25–40 years. The data collection process contains a stimulus to generate a P300 signal and record for 50 seconds using 19 channels and a 10-20 system. The results of the study show that the P300 signal features can affect the formation of amplitude and latency. The more effective stimulus in generating the P300 signal for drug users is a similar stimulus shabu with an amplitude value of 18,3 μV and a fast response latency of 252,9 ms.