Cognitive, Dispositional, and Psychophysiological Correlates of Dependent Slot Machine Gambling in Young People

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Abstract
In Study 1, young dependent and nondependent slot machine gamblers were interviewed, assessed for locus of control and administered the Eysenck Personality Questionnaire. Dependent gamblers were revealed as reliably more internal in terms of locus of control than their nondependent counterparts, and, in the interview, were much more likely to affirm that they could exercise control over the slot machines they played. Dependent gamblers registered higher psychoticism scores than both the nondependent gamblers and appropriate age‐group norms. Their high psychoticism scores resonated well with interview revelations that boredom mitigation frequent underlay dependent gambling.In Study 2, blood pressure was monitored in dependent and nondependent gamblers at rest and before, during and after slot machine play. Subjects were given £5 for this purpose and the time it took them to use up this money was recorded, as was the extent of any returns they received. They were also asked how much they expected to recoup. The £5 lasted a similar amount of time for the two groups, and they managed similar rates of return on their stake. However, the dependent gamblers expected to win more than the nondependent gamblers and their estimates of returns exceeded what they actually recouped. Slot machine play was associated with an increase in blood pressure, and while groups did not differ in terms of the magnitude of the rise provoked, there was a general trend for dependent gamblers to show lower basal levels of cardiovascular activity, although this was statistically reliable only in the case of diastolic blood pressure.

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