Sergio Fernández-Artamendi

The study of impulsivity and sensation seeking in adolescence is crucial given its implication in multiple risk behaviors. The present study aims to analyze the reliability and factorial structure of the Impulsive Sensation Seeking (ImpSS) scale with a big sample of adolescents from the general population, calculating the convergent validity with the Barratt Impulsiveness Scale (BIS-11-A) and its predictive validity with the use of tobacco, alcohol , and cannabis, as well as intoxication episodes, binge drinking and problem drinking. A total of 1321 students participated in the study (mean age: 12.98 years old; 55.3% male). Results indicated that the ImpSS has high reliability (α = .83), as well as predictive validity regarding tobacco, cannabis and excessive alcohol use. No significant gender differences were found in the final ImpSS scores in our sample. Factorial analyses determined that a two-factor structure is the most adequate. Nevertheless, high correlation between subscales (.69) suggests an important second-order factor of Impulsive Sensation Seeking. Our results indicate that the ImpSS is a valid and reliable instrument to assess impulsive sensation seeking in adolescents, and it shows good predictive validity regarding substance use. Discussion of implications for the study of impulsivity and sensation seeking in adolescents is provided.

Background: The directionality of the relationship between impulsivity and heavy drinking patterns remains unclear. Recent research suggests it could be reciprocal and depends on different facets of impulsivity and different patterns of drinking. The aim of this study was to analyze this potential reciprocal relationship between self-reported and behavioral measures of impulsivity and sensation seeking with specific patterns of heavy drinking in a sample of Spanish adolescents across 2 years. Methods: The study has a cross-lagged prospective design in which participants were evaluated 3 times over 2 years (once a year). Participants were 1,430 adolescents (53.9% male; mean age at study commencement = 13.02, SD = 0.51) from 22 secondary schools in Spain. Computerized versions of the following instruments were used: 2 subscales of Impulsive Sensation Seeking, 2 behavioral measures (Stroop Test and Delay Discounting [DD] task), frequency of intoxication episodes (IE), and the Rut-gers Alcohol Problem Index to evaluate alcohol-related problems (ARP). Random intercepts cross-lagged panel models of reciprocal relationships between impulsivity measures and alcohol use outcomes were used. Results: Individual levels of self-reported impulsivity and sensation seeking significantly predicted prospective involvement in IE and ARP. Performance in behavioral measures (Stroop Test and DD) did not predict subsequent heavy drinking or alcohol problems. No measure of drinking was found to be a significant predictor of prospective changes in impulsivity. Conclusions: Within-person levels of self-reported impulsivity and sensation seeking significantly predicted further heavy drinking from as early as 13 years old, whereas behavioral measures were not predictive. In our study, neither IE nor ARP predicted prospective changes in impulsivity. Further studies should address additional specific relationships between facets of impulsivity and specific outcomes of heavy drinking.

Cannabis is a widely used substance among adolescents and young adults, but demand for help and treatment from this age group continues to be low. It is therefore essential to develop instruments especially designed for the early detection of problems associated with cannabis use in this population. The purpose of this work is to adapt and validate the CPQ-A (Adolescent Cannabis Problems Questionnaire) for its use as a screening instrument in Spanish population. The sample was made up of 144 young people (71.5% male) aged 16 to 20 (M = 17.12; SD = 1.17) who had used cannabis in the last month and were on some kind of study or training course at various educational institutions in Asturias (a region in northern Spain). Factor analysis of the CPQ-A in this sample provides evidence of a unidimensional structure, with a Cronbach's Alpha of 0.86 for the questionnaire. The evidence also shows that the instrument's convergent validity is good. The CPQ-A score permits discrimination...

Despite the availability of data about drinking frequency and patterns, the surveys on alcohol use among adolescents carried out in Europe tend not to provide information about diagnostic criteria for alcohol use disorders (AUD) or estimation of their prevalence. This study assesses the prevalence of AUD among a sample of Spanish adolescents, to identify the most prevalent symptoms, and explore gender differences in AUD in this population. The final sample consisted of 504 participants aged 15 to 18, obtained by means of random sampling from all the schools in the region of Asturias (Spain). The presence of alcohol abuse (AA) and alcohol dependence (AD) disorders was evaluated according to DSM-IV-TR criteria. The results showed that 12.5% of the sample met the criteria for the diagnosis of AUD (6.7% for alcohol abuse, AA, and 5.8% for alcohol dependence, AD). The most prevalent symptoms were having social problems for AA diagnosis (9% of students who reported alcohol use in the past...

Despite cannabis use among adolescents has shown to be related to psychosocial and mental health problems, the demand from adolescents for professional help is very low, and determinants of motivation for change among nonclinical populations remain unknown. The purpose of this study was to assess motivation for change among young cannabis users and to identify determinants of intention to change and self-change, as well as perceived barriers to seeking professional help. 261 cannabis users aged 16-21 participated in a computerized survey in Spain. Data from this cross-sectional study indicated that few users intend to stop taking the drug. Determining factors of intention to change were the following: having more drug-related problems, paranoid symptomatology and greater concern about the consequences of use. Self-change was facilitated by lower use of cannabis, and could be hindered by tobacco smoking and cannabis dependence. Lack of awareness of the problems and the desire to solve one's problems alone constitute the main barriers to seeking professional help. Adolescent cannabis users show low motivation for change though experiencing more problems associated with its use emerges as a determinant of increased motivation. Several barriers impede this motivation from turning into treatment demand.

The community reinforcement approach (CRA) with vouchers is a well-established program developed for the treatment of cocaine addiction. It involves an incentive program in which patients earn vouchers that can be exchanged for goods or services contingent upon abstinence from cocaine use. To examine the contributions of incentives to retention, abstinence, and psychosocial outcomes in the CRA+vouchers program at the 12-month follow-up. 58 cocaine addicts were randomly assigned to CRA treatment with or without an added incentive program in a community setting for cocaine dependence in Spain. 65.5% of patients in the group with vouchers completed 12 months of treatment, versus 48.3% in the no-voucher group. In the CRA+vouchers group, mean percentage of cocaine-negative samples was 95.76%, versus 79.31% in the group without vouchers. There were significant improvements in psychosocial functioning in both treatments, but when differences were observed, they supported CRA with vouchers over CRA alone. Combining CRA with incentives improves treatment outcomes in cocaine-dependent outpatients. Additive benefits of vouchers remain 6 months after the incentive program ends.