Huettel, S, Stowe, C, Platt, M, Gordon, E, and Warner, B. "Choices between gambles: Effects of certainty, risk, and ambiguity upon brain systems for decision making and reward evaluation". 2005.
Strikingly, the dopamine responses to 0.8 ml of juice in the medium gamble dwarfed the prediction error responses after 0.4 or 1.2 ml in their respective gambles (effect sizes compared to baseline neuronal activity = 1.4 versus 0.7 and 0.6, respectively; p < 0.005; Hedge's g).
A previous research of 2004 suggested that gambling induces effects that closely resemble psychostimulant drug effects; the study, a placebo-controlled trial with D-amphetamine (AMPH) 30 mg/day in gamblers (N = 10), comorbid gambler-drinkers (N = 6), drinkers (N = 8), and healthy controls (N = 12), showed that psychostimulants are an important component of gambling addiction [ 44].
Although none of our subjects exhibited pathological gambling, subtler effects may have been present due to dopamine agonists in terms of the response to reward expectation and reward.
The task also minimizes demands for learning, working memory and cognitive flexibility, which complicate the interpretation of Iowa Gambling Task effects [ 49].
Gambling's effect on residential property values is another question.
Whilst employee service has little influence on impulsive gambling, the effect is enhanced by casino brand equity.
Gambling's effect on British university students is similarly stark, with many betting to cover living costs, resulting in lost loans, one in eight missing classes and around 100,000 having some form of gambling debt.
It gambled, in effect, that by importing more from foreign suppliers and from American companies that had set up shop abroad, consumer prices for manufactured products would fall, without any sacrifice in product quality.
Previous research suggests that gambling can induce effects that closely resemble a psychostimulant drug effect.
