Henk F. L. Garretsen

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Keywords: Compulsive internet use Internet addiction Impulsivity Sensitivity to reward Sensitivity to punishment a b s t r a c t Aim of the present study was to examine whether the personality correlates sensitivity to reward and to punishment, and impulsivity predict compulsive internet use (CIU). Furthermore, the predictive value of these personality(More)
The present study aimed to develop a short, easily administered, psychometrically sound, and valid instrument to assess the severity of compulsive Internet use. A set of criteria was determined based on the addiction literature. Next, the internal consistency and convergent validity were determined, and the set was tested as a one-factor solution in two(More)
The objective of this research was to assess the predictive power of various Internet applications on the development of compulsive Internet use (CIU). The study has a two-wave longitudinal design with an interval of 1 year. The first measurement contained 447 adult heavy Internet users who used the Internet at least 16 h per week and had Internet access at(More)
BACKGROUND Assertive Community Treatment (ACT) is an evidence-based treatment model, which has been frequently discussed and investigated and which has been used mainly with patients suffering from 'severe mental illness'. It is a pro-active type of treatment involving a multidisciplinary team who provide outreaching and intensive care (treatment,(More)
BACKGROUND Healthcare professionals are crucial in the identification and accessibility to treatment for people with substance use disorders. AIM Objective of this literature review is to assess health professionals' attitudes towards patients with substance use disorders and to examine the consequences of these attitudes on healthcare delivery for these(More)
PURPOSE Alcohol- and drug addiction tends to evoke disapproval and rejection among people. This study provides insight into the origin of people's negative attitudes towards these people. Corrigan's attribution model is used to examine intentions of the Dutch public to impose restrictions to people who are addicted to alcohol or illicit drugs. METHODS(More)
After a long and contentious political debate, the instant lottery was introduced in the Netherlands in 1994. One of the conditions for allowing the introduction was that an evaluation study should be conducted with regard to possible negative side effects of the instant lottery in terms of excessive playing or addiction. This article reports on the main(More)
Prior epidemiologic research revealing cardioprotective effects of alcohol intake has systematically neglected lifetime exposure to alcohol, which may cause serious bias in conclusions regarding drinking and heart disease risk. Departing from use of an earlier interview schedule, the authors of the present 1996-2001 cohort study developed a(More)
BACKGROUND AND AIMS Interferential care differs from the current community-based care programs in that it targets a larger, heterogeneous group and combines brokerage and full service elements in a multi-organizational care team. The team provides all the services itself, but with the aim to prepare clients within a few months for referral to regular(More)
An Invited European Expert Group Meeting was held in Rotterdam that focused on research methods for hidden populations using illicit drugs. Experts from most European Community member states participated and contributed state-of-the-art presentations on various research methodologies. Attention was paid to the more quantitatively oriented research methods,(More)