| dc.description.abstract | Alcoholism is a major health risk, since 4% of all deaths worldwide are attributed to alcohol. The
development of alcoholism is influenced by genetic, psychosocial and environmental factors. The
reward feeling, derived of alcohol consumption, can also stimulate the development of an alcohol
problem. This reward is mediated by the mesolimbic reward pathway in the brain. Social behavior,
especially social play, can also result in a reward feeling and there is a relation between social
behavior and alcohol. This relation is most clearly seen in adolescents, where alcohol facilitates social
behavior and where a social environment can support alcohol use, presumably by emphasizing the
positive effects of alcohol. Much research is done towards the underlying mechanisms of alcohol use,
social behavior and the relation between the two. Of particular interest in this respect is the research
on prairie voles that display strong social bonds and have a high preference for alcohol that is related
to social behavior. Based on different studies it turned out that low doses of alcohol can support play
behavior, presumably by the release of opioids. One of the brain structures involved in social play
and alcohol is the amygdala, which contributes to the rewarding effects of both. The amygdala is also
involved in the sex differences of social play, and with respect to alcohol it might also play a role in
the positive and negative reinforcing effects of alcohol, which suggest a regulating function of the
amygdala. Furthermore, there was an increased expression of the adapter protein 14-3-3ζ found in
the amygdala during escalated alcohol intake, which might confirm the regulating role of the
amygdala on alcohol intake. However, there is more research needed towards this effect and if the
amygdala has indeed a regulating role, it might be a potential target for a treatment of alcoholism,
perhaps via the stimulating effects of social play on the amygdala. | |
