Psychogenetics of aggression

Twins and family study enables to conclude that individual aggression diffe rences are considerably (almost 50%) caused by genetic factors. The allfami ly environment is not a significant determinant in adults aggression, while the individual one, on the contrary, accounts for no less than a half of i ts dispersion. At the same time the increased aggression in people with dif ferent chromosome anomalies is in most cases a part of a general desadaptat ion syndrome considerably made up with psychological factors namely. Inform ation concerning molecular-genetic aggression prerequisites is meanwhile in complete and in some cases contradictory which is mostly accounted for by t he sexual or age factors impact as well as by the fact that molecular-genet ic aggression prerequisites are apparently unlike different diseases.