RESUMO
Testing of animals with different degrees of manifestation of attraction to ethanol showed that in conditions of zoosocial conflict rats--potential dipsomaniacs have less competition abilities in their struggle for the aims of biological value as compared to the rats, who are not dipsomaniacs. Their failure in a conflict situation leads to the fact, that while getting in the same or some other stress conditions for the second time, the animal fully gives up activity and makes no attempts to overcome these situations. This weak behavioural activity of such rats is based on a great tendency to the development of depressive-like state. Alcohol in certain doses (0.5 g/kg) normalizes the behaviour of rats--potential dipsomaniacs. This, probably, explains the appearance of alcoholic motivation in these animals.