Chunk #48 — SUD Prevalence and qEEG Changes — qEEG in Substance Use Disorders — P300 Abnormalities in Cocaine, Methamphetamine, Heroin Addiction, and Alcoholism
The results of early work examining the effect of cannabis use and THC administration on visual and auditory ERPs have been inconclusive (Rodin et al. 1970; Roth et al. 1973). Later studies of Patrick et al. (1995, 1997) could not find P300 latency differences in audio and visual oddball tasks between THC users without psychiatric problems and controls. Although THC users displayed reduced auditory and visual P300 amplitudes in this study, when age differences between THC users and controls were removed, all significant P300 amplitude differences were removed as well.
