Comparative study of bioelectric brain activity in drug and internet addicts

The analysis of EEG wave intensity index has been used for comparative assessment of specific changes in brain activity in the cases of chronic ethanol or drug (heroin, opium) abuse, exposure to toxic agents (volatile organic compounds, household chemistry), polydrug use, and nonchemical (Internet) dependence. These data may be relevant to the problem of general and specific mechanisms of influence of various addiction risk factors on neurophysiological and neurochemical processes.