The usage of the motivation induction method (method d'induction motivationelle - MIM) of G. Nuttin allowed to detect specific deformation of the motivation sphere and the time perspective of the 15-17-years-old adolescents with the addictive behaviour (using alcohol drinks and toxic substances), which manifestos itself in the decrease of interpersonal relations, sexual need, increase of the personal independence motivation, protection of the Ego, the loss of the time perspective of the future and some other moments. The significance of the received data for the early diagnosis, correction and the preventive treatment in the work with such adolescents both in medical institutions and in the school psychological service system, is discussed.