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A nationwide survey was conducted to investigate the prevalence of video game addiction and problematic video game use and their association with physical and mental health. An initial sample comprising 2,500 individuals was randomly selected from the Norwegian National Registry. A total of 816 (34.0 percent) individuals completed and returned the(More)
This postal questionnaire study investigated the use of media in the bedroom and its relationships with sleep habits and symptoms of insomnia. The sample comprised 2500 individuals aged 16-40 years drawn randomly from the Norwegian national register. A total of 816 (34.0%) completed and returned the questionnaire. Respondents were asked how often they used(More)
Attentional bias has been the subject of extensive empirical investigation in connection with chemical addictions, and it has been demonstrated in users of several different substances. The findings show that substance users seem to notice and attend to substance-related stimuli more readily than non-substance-related stimuli. Less is known, however, about(More)
This study investigated the relationship between aversive conditioning, heart rate variability suppression, behavioral activation system/behavioral inhibition system and risk-avoidance on the Iowa gambling task (IGT) in a nonclinical sample (29 male, 29 female, mean age = 20.7). A laboratory based Pavlovian aversive conditioning paradigm was used where a(More)
There is evidence that young people are at high risk of developing gambling disorders. The prevalence and correlates of gambling among youth therefore merit closer study. During spring 2004, a sample of 1,351 boys and girls (aged 16-19 years) from 151 high-school classes (clusters) participated in an internet survey about gambling. The response rate was(More)
We report data collected in a representative sample of 17-year-old Norwegians to investigate prevalence rates of non-problem, risk, and problem gambling, as measured by the Problem Gambling Severity Index (PGSI). In addition, we explored the importance of demographic, personality, motivational, social, and health variables explaining variance in adolescent(More)
Background and aims Electronic gaming machines (EGM) may be a particularly addictive form of gambling, and gambling speed is believed to contribute to the addictive potential of such machines. The aim of the current study was to generate more knowledge concerning speed as a structural characteristic in gambling, by comparing the effects of three different(More)
AIMS Impaired ability to form associations between negative events in gambling and aversive somatic reactions may be a predisposing factor for pathological gambling. The current study investigated whether a group of pathological gamblers and a control group differed in aversive classical conditioning. DESIGN A differential aversive classical conditioning(More)
BACKGROUND AND AIMS Knowledge of the personality characteristics of individuals who develop gambling problems is important for designing targeted prevention efforts. Previous studies of the relationship between the five-factor model of personality and gambling problems were based on small samples not representative of the general population. We estimated(More)