[Capacity to experience pleasure and displeasure by Cloninger and von Knorring in type I and II alcoholism].

The aim of the present study is to test the hypothesis that Cloninger and von Knorring's type II alcoholics are more hedonic and experience less displeasure than type I alcoholics. 55 inpatients filled out the DSM III-R criteria for abuse or alcoholic dependence. The alcoholics were dichotomized into type I or type II using the onset of their alcoholism (type II < 25 years, type I > or = 25 years). In the few days of their hospitalization, the subjects filled out the Fawcett Clark Pleasure Capacity Scale-Physical Pleasure (FCPCS-PP), the Hardy Displeasure Capacity Scale-Physical Displeasure (HDCS-PD) and the abridged form of the Beck Depression inventory (BDI). The sociodemographic characteristics, the proportions of "abusers" and "dependents" and the scales scores were compared between the two groups. The sex-ratio and the educative level were not different between the two groups; the values of the chi 2 were respectively 1.36 (df = 1), p = 0.24 and 1.03 (df = 2), p = 0.59. The ratio "abusers" /"dependents" was not different (chi 2 = 1.115, p = 0.291). The mean age of the type I alcoholics was higher (m = 46.7, sd = 11.2) than that of the type II (m = 38.9, sd = 7.9) (U = 218.5, p = 0.013). Using covariance analyses (ANCOVA) to control the age, the results have shown that the FCPCS-PP and HDCS-PD scores of the type II alcoholics were not different than these of the type I alcoholics [respectively F (1.52) = 1.5, p = 0.23 and F (1.52) = 0.14, p = 0.7]. In conclusion, we failed to confirm the hypothesis that type II alcoholics would experience more pleasure and less displeasure than type I alcoholics. These negative results were discussed and the potential factors that could explain them are detailed.