Differences in EEG response to alcohol may have ethnic variations; Hispanic FHP young adults had decreased fast alpha while non-Hispanic adults showed an increase in the same band. Fast alpha (9–12 Hz) power at baseline was also found to be negatively associated with level of response to alcohol, with increased EEG alpha power at baseline being predictive of a less intense response to alcohol (Ehlers et al., 2004). An early prospective study (Volavka et al., 1996) showed that, in high-risk men, a diminished alpha-frequency EEG response to alcohol was related to the development of alcohol dependence 10 years later.
