Haske van der Vorst

Parental alcohol use, alcohol-related problems, and alcohol-specific attitudes, alcohol-specific communication, and adolescent excessive alcohol use and alcohol-related problems: An indirect path model

Alcohol-specific parent-child communication has often been studied in relation to regular alcohol use of adolescents. However, it might be as important to focus on adolescent problematic alcohol use. In addition, the way parents communicate with their children about alcohol might depend on their own (problematic) drinking behaviors. Therefore, the current study examined the direct effects of parental alcohol use, alcohol-related problems, and parental alcohol-specific attitudes on adolescent excessive drinking and alcohol-related problems later in life. It also looked at indirect effects via alcohol-specific communication. The sample consisted of 428 Dutch families including fathers, mothers and adolescents from two age groups (13 and 15 years old) at T1, who have been surveyed annually for 5 years. We tested the model with structural equation modeling (SEM). The results showed that parental alcohol-related problems were positively associated with communication about alcohol, which in turn was related with less excessive adolescent drinking and alcohol-related problems. Lenient parental attitudes about alcohol and parental alcohol-related problems were directly related to more excessive drinking and alcohol-related problems in adolescents. In conclusion, alcohol-specific communication intervenes in the relationship between parental alcohol-related problems and adolescent excessive drinking and alcohol-related problems. This indicates that in family alcohol interventions targeted at youth alcohol use, parental alcohol-related problems should be taken into account.

Parental alcohol-specific rules and alcohol use from early adolescence to young adulthood

BACKGROUND   Several studies stress the importance of alcohol-specific rules during adolescence to prevent them from drinking early and heavily. However, most studies have short follow-up periods and do not cover the relevant developmental period in which direct parental control diminishes and adolescent alcohol use increases. The current study aimed to provide a developmental perspective on the link between alcohol-specific rules and alcohol use from early adolescence until early adulthood in the Netherlands. METHODS   The sample consisted of 428 Dutch families including fathers, mothers and adolescents from 2 age groups (13 and 15 years old) at Time 1 (T1), who have been surveyed annually for 6 years. To address the effect of alcohol-specific rules on adolescent alcohol use over time, a latent growth curve analytic approach with time-varying covariates was employed. RESULTS   Over time, adolescent alcohol use increased, whereas alcohol-specific rules decreased. Most importantly, however, the lagged paths of alcohol-specific rules consistently predicted subsequent alcohol use across the 6 assessments for both younger and older siblings. Thus, strict alcohol-specific rules at a certain point in time were related to a lower intensity of adolescent alcohol use a year later. CONCLUSIONS   Although parents turn somewhat less strict in alcohol-specific rules over time, and adolescent alcohol use increases over time, the specific rules parents set remain important in restraining the alcohol use of their adolescent offspring. Thus, parents should and can feel confident about their parenting capabilities, and they should maintain being strict to prevent their offspring from drinking.

The Moderating Role of Working Memory Capacity and Alcohol-Specific Rule-Setting on the Relation Between Approach Tendencies and Alcohol Use in Young Adolescents

BACKGROUND Dual process models of alcohol addiction propose that the transition from normative alcohol consumption to heavy drinking is the result of an imbalance in interplay between relatively impulsive or automatic and reflective or controlled processes. The current study examines whether impulsive and reflective processes are also detectable in a sample of adolescents with limited alcohol use. METHODS Specifically, we tested the interaction between alcohol approach tendencies and 2 types of reflective processes, working memory capacity (WMC) and alcohol-specific rule-setting, on changes in alcohol use of 238 young adolescents (mean age: 13.82 years). Gender differences in these associations were also explored. RESULTS Results showed that WMC did not moderate the relation between approach tendencies and subsequent alcohol use, whereas rule-setting did, with stronger associations between approach tendencies and alcohol use for male adolescents reporting more permissive parents than male adolescents with parents enforcing stricter rules involving alcohol use. Associations between approach tendencies and subsequent alcohol use did not emerge for female adolescents. CONCLUSIONS Results indicate that even in a sample of adolescents with limited drinking experience, automatic processes are positively associated with alcohol use for male adolescents that are not motivated by parents to control their drinking.

The effect of the OPRM1 and DRD4 polymorphisms on the relation between attentional bias and alcohol use in adolescence and young adulthood.

BACKGROUND The incentive sensitization theory posits that in the transition from sporadic to problematic alcohol use, the incentive value of alcohol increases (wanting) while its hedonic effects (liking) do not change or decreases. The effect of the OPRM1 c.118A>G polymorphism, associated with liking and wanting, and the DRD4-VNTR polymorphism, related to wanting, on the relation between attentional bias and alcohol use was investigated. METHODS A total of 195 young adolescents (Study 1) and 86 young adult male heavy drinkers (Study 2) completed a visual probe test. Saliva samples were collected to test both polymorphisms. RESULTS In Study 1, attentional bias was positively associated with adolescent alcohol use only for OPRM1 G-allele carriers. In Study 2, attentional bias was positively associated with problem drinking for carriers of a DRD4 long allele. DISCUSSION It is tentatively proposed that an attentional bias for alcohol is related most strongly to liking and wanting in early adolescents, while in young adults, an attentional bias may reflect wanting. In addition, individual differences associated with two both genetic markers should be taken into account when examining the relation between attentional bias and alcohol use.

Impulsive and reflective processes related to alcohol use in young adolescents

Background: Dual process models suggest that the development of addictive behaviors is the result of interplay between impulsive and reflective processes, modulated by boundary conditions such as individual or situational factors. Empirical support for this model has been repeatedly demonstrated in adult samples [for a meta-analysis, see Ref. (1)]. The purpose of this study was to test these processes as they relate to emerging alcohol use in adolescents. Specifically, the interactive effects of several measures of impulsive and reflective processes and working memory capacity (WMC) are examined as predictors of changes in alcohol use among adolescents. It was expected that measures of reflective processes would better predict changes in alcohol use than measures of impulsive processes. Moreover, it was anticipated that WMC would moderate the relation between alcohol-specific impulsive and reflective processes and changes in adolescent alcohol use. Methods: The sample consisted of 427 adolescents (47.7% male) between 12 and 16 years of age (M = 13.96, SD = 0.78) who reported drinking alcohol at least once. Four measures of impulsive processes were included. Attentional bias for alcohol was assessed with a Visual Probe Test; approach bias toward alcohol was assessed with a Stimulus Response Compatibility (SRC) Test; and memory associations with alcohol were assessed with an Implicit Association Test (IAT) and a Word Association Test. Two measures of reflective measures were included: positive and negative expectancies. WMC was measured using a Self-Ordered Pointing Task. Results: Results showed that positive expectancies predicted changes in alcohol use, but this effect was qualified by an interaction with IAT scores. Moreover, SRC scores predicted changes in alcohol use only when negative expectancies were low. Attentional bias and word association scores did not predict changes in alcohol use. The relations between alcohol-specific processes or reflective processes and alcohol use were not moderated by WMC. Conclusion: Although there is empirical evidence for the validity of the model in predicting heavier alcohol use in adolescents, or alcohol abuse and dependence in adults, these observations do not generalize to a sample of normative, early adolescents. More specifically, results indicated that reflective processes are more important predictors of changes in alcohol use than impulsive process during adolescence.

De rol van ouders in de ontwikkeling van alcoholgebruik onder adolescenten

SamenvattingDe invloed van ouders op het alcoholgebruik van hun kinderen is groot, vooral in de fase dat kinderen gaan nadenken over drinken. Ouders kunnen de leeftijd van het eerste drinken helpen uitstellen, met name door het stellen van duidelijke regels. Niet door oeverloos gepraat, want dat werkt contraproductief. En niet door kinderen thuis te laten drinken om ze verantwoord alcoholgebruik bij te brengen, want ook dat werkt averechts. Ouders die zelf veel drinken kunnen toch het drinkgedrag van hun kinderen beperken. Het gedrag van kinderen beïnvloedt dat van hun ouders, maar ouders moeten niet opgeven. Deze nieuwe gegevens uit een groot Nederlands project dwingen tot bijstelling van het preventiebeleid.