Persistent gambling was studied as a function of the reinforcement of arousal and winning during normal poker machine playing sessions. Play rate, heart rate, winnings, subjective excitement and expectations of winning were recorded for five male and five female high-frequency players. Autoregressive regression analysis indicated that wins affect play rate for up to three minutes, while effects of the other variables were inconsistent. Markov chain analysis confirmed that wins smaller than 50 credits tend to elevate play rate, while larger wins cause a breakdown in the otherwise very regular rate of play. Results are discussed in relation to the development of impaired control of gambling behaviour.
Off-course betting agency customers fN-/72> were assessed by a brief structured interview and by a questionnaire that included; the Sensation Seeking Scale (SSS Form V), a short form of the State portion of the State-Trait Anxiety questionnaire designed to assess subjective reports of levels of arousal after betting but prior to the race result, a question assessing the frequency of chasing and questions about other aspects of betting behaviour. Contrary to the hypothesis of Zuckerman (1979) the results showed that male bettors as a group were significantly lower on SSS scores than existing population norms. Despite the restricted range of these scores weak but significant relationships were shown between SSS subscales and level of involvement in betting.Chasing was shown to be a central feature of a group of out-of-control betting behaviours. Sensation Seeking scores were positively correlated with level of involvement and the relationship found between the Boredom Susceptibility subscale and arousal was tentatively highlighted as an individual difference that would predispose a person to greater loss of control and possible problematic levels of gambling.
In view of the increasing popularity of minimal intervention treatments for problem drinking, a self-help manual for people who wish to reduce or stop gambling was prepared. Twenty-nine (ACT residents) who responded to advertisements for help with problem gambling were allocated to either of two minimal treatments, "Manual (only)" and "Manual & Interview". On average, clients from both groups reduced the frequency of their gambling sessions, frequency of overspending, and amount spent per week in the first three months and next three months after first contact, but expenditure per session increased from three to six months, after an initial improvement. There was no evidence that a single in-depth interview added to the effectiveness of the manual.
A substantial minority of HIV-infected Australians are not taking antiretroviral drugs. This study investigated the reasons behind their decision not to do so. Anyone who was HIV-infected but not taking antiretroviral drugs could participate. A self-administered, anonymous questionnaire was used, the principal recruitment method being through insertion of the questionnaire into gay community newspapers in Sydney and Melbourne. All respondents were asked questions covering demographics, previous AIDS-defining illnesses, T-cell and viral load monitoring, and previous use of antiretroviral drugs. In addition, respondents who had considered going on antiretroviral treatment, but then decided not to do so, were given a list of possible reasons for their decision and asked to indicate how much each played a role in their thinking. Of the 270 respondents, the great majority were gay men. One-eighth had experienced AIDS-defining illnesses. Two-thirds had recently had T-cell and viral load tests. One-third had taken antiretroviral drugs previously. Over two-thirds had considered antiretroviral therapy, most having given the matter quite some thought. Reasons for not taking up therapy did not differ greatly at different stages of HIV disease. The most common individual reason was fear of side effects. Important themes that emerged from factor analysis of the reasons data included distrust of conventional medical approaches to treatment, practical problems associated with taking antiretroviral drugs, unpleasant thoughts that being on therapy would evoke, and acceptance of the idea of dying. The findings can be used by doctors and counsellors to help patients clarify and evaluate their concerns about antiretroviral therapy.
Consequently, a borderline zone of competence implies an overlap of competence and incompetence with respect to the level of performance on tasks of varying clinical significance. We further suggest that this overlap can be conceptualized as a folding of the 'competence plane' (consistent with a cusp catastrophe model) that cuts the space defined by performance levels on clinical conditions of varying significance, with their associated skills requirements. That folding defines the borderline zone in which competent candidates will perform most of the tasks in the borderline zone correctly whereas incompetent candidates will fail most tasks.
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