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FEATURES OF COMPONENTS N2 AND P300 OF AUDITORY EVOKED POTENTIAL DEPENDING ON THE LEVEL OF INTERNET ADDICTION IN ADOLESCENTS

Introduction: Due to the popularization of digital technologies, people began to spend more time on the Internet. Existing studies show mixed results about the impact of Internet use on attention, cognitive control, and other cognitive functions. 
Aim: To evaluate the components of the event-related potentials (ERPs) P300 in practically healthy adolescents aged 16-17 years (n=55) in Simferopol with a different risk of Internet addiction and a stable pattern of Internet addiction (IA). 
Methods: The level of IА was evaluated on the Chen Internet Addiction Scale in the in the Russian version of V.L. Malygin, K.A. Feklisov. The registration of the ERPs P300 components was carried out on an electroencephalograph (Neuron-Spectrum-4/Neurosoft VPM, Russia). An auditory oddball paradigm was used.. 
Results: Changes of the N2 latency and of the P300 latency were not detected between the groups in young men. In girls with a tendency to the occurrence of IА, there was an elongation of the N2 latency in the frontal and central regions of the brain, which reflects a slower primary identification and classification of stimuli. In girls with a stable pattern of IА, there was an increase of the N2 latency in the central, left frontal and right medial temporal regions and an increase in of the P300 latency in the frontal, central and parietal right parts of the brain compared to girls with minimal risk of IА, which indicates the need for more time to identify the stimulus and make a decision. 
Conclusions: Thus, an increase of the N2 latency was already observed in girls with a tendency to the occurrence of IА, which can be used to predict the development of IА and for prevention.