Adolescent substance use is an increasing problem in the United States, and some researchers posit a bidirectional relation between adolescent substance use and the personality trait of impulsivity (e.g., Quinn, Stappenbeck, & Fromme, 2011). Friend substance use has been shown to be a powerful predictor of adolescent substance use, with prior research suggesting a bidirectional relation between...

Maximal concentrations of substance P and methacholine induced a rapid increase in [3H]inositol trisphosphate ([3H]IP3) formation. After about 1 min, the [3H]IP3 in the substance-P-treated cells ceased to increase further, whereas in the methacholine-treated cells [3H]IP3 continued to increase. Addition of methacholine to the substance-P-treated cells caused a rapid increase in [3H]IP3, whereas...

one of the main important and challenging issues in substance use disorders is the comorbidity of diseases. in fact, substance use disorder falls into a special circumstance that is unlike any other disease in medical science. substance abuse patients typically and on purpose use illegal drugs (poison) in aim of damaging their nervous system and change function of their brains by applying subst...

substance abuse in adolescents and its often tragic consequences, including addiction, is one of the preventable major public health problems. the aims of this paper were to estimate the prevalence of substance abuse and to evaluate its some associated factors in adolescents of tabriz city (northwest of iran).a self-administered questionnaire was completed in 4903 randomly selected students wit...

objectives : stressful life events, coping strategies and attitude towards life have been known as important components in tendency toward substance abuse. this study investigates coping patterns and dysfunctional attitudes among a group of clients at mashhad welfare center as substance abusers comparing with those of control group. method: 50 male substance abusers were selected randomly and m...

BACKGROUND This paper provides an overview of the self-concept as it relates to substance use. Self-concept has a long history in psychological theory and research; however, substance self-concept (e.g., viewing one's self as a drinker or smoker) is an understudied area of research with the potential to expand existing conceptualizations of substance use, addiction, and prevention and treatment...

background: understanding the motives and reasons for drug treatment is very important. this study aimed to develop a psychometric evaluation to determine the reasons for addiction treatment among outpatients referred to addiction treatment clinics. methods: this cross-sectional validation study included five phases (i) item generation (ii) making an initial questionnaire (iii) content validity...

background: young people engage in risky behaviors unintentionally and these behaviors might be reduced or inhibited by preventative behaviors. although adolescents' risky behaviors are known as unplanned or unintentional, preventative behaviors are intentional. the aim of the present study was to assess students’ behavior intentions to avoid drug abuse. methods: this study was a cross sectio...