[Cannabis addiction and Telic Dominance Scale].

The research presented originates in a double set of problems: on the one hand the revelation of cannabis addiction and the borderline personality, and the other hand the link between cannabis addiction/borderline personality and the activity system (Telic; Paratelic). Examination of the relationship between these two notions makes it possible to differentiate cannabis addicts according to adjustments of border line personality. With this aim in mind, we hypothesized that "Activity System" is the type of personality adjustment of cannabis addict, "Character Neurosis" and "Character Psychosis". The first phase of our research consisted of characterization of the sample. Our population consisted of 70 cannabis addicts selected according to precise inclusion criteria (score below 7 on the Cannabis Dependency Questionnaire, score below 4 on the Addiction Severity Index and at least five criteria of borderline personality according to the DSM IV). The second phase investigated our hypothesis based on "Activity system". We expected that the cannabis addicts who had adjusted on the "Character Neurosis" mode would have a telic activity system unlike the cannabis addicts who had adjusted on the "Character Psychosis" mode. In conclusion, we can consider that there is a retroactive effect between cannabis addiction and borderline personality. The personality adjustment of cannabis addict through the intermediary of activity system has an influence on cannabis consumption.