Selene,
we are all a little psychiatrists
my last (for today) profession - advertising and PR. Psychiatry fond of and in connection with the profession, and fun (to a technical college was going to become one, would like to save people from endogenous depression, which kill one in six patients). Unfortunately (or rather, fortunately) to manipulate the consciousness of such simple means as the 25-th frame is impossible. More complicated - simply, for example, stupefying propaganda. Even Goebbels wrote about it with astonishing frankness. For example, he recommended his (hopefully, later hanged) partaygennose hold meetings from 5 to 6 pm: the head of a crowd is not so clear as in the morning, but did not want to sleep. He also recommended to introduce into the crowd clap, and give quantitative recommendations.
Generally, the only meaningful impact on the psyche of citizens who feel justified - it is therapy of diseases of the emotional sphere. In other cases - it is brutal violence, moral crime.