Delay discounting of losses and rewards in alcohol use disorder: The effect of working memory load.
Delay discounting of losses and rewards in alcohol use disorder: The effect of working memory load.
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DOI：
10.1037/adb0000341
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发表时间：
2018-03
期刊：
影响因子：
--
通讯作者：
Finn PR
中科院分区：
文献类型：
--
作者：
Bailey AJ;Gerst K;Finn PR
酒精使用障碍（AUD）一直与延迟奖励的折扣率升高有关。然而，关于AUD患者延迟贴现损失的研究很少，尽管他们的饮酒行为表明他们低估了过度饮酒的未来负面后果。目前的研究扩展了这一文献，在工作记忆负荷和无工作记忆负荷条件下，对AUD患者（n = 78）和健康对照组（n = 51）的延迟折扣奖励和损失进行了研究。澳元组的奖励和损失折现率都高于对照组。WM负载增加了奖励任务的折现率，但没有增加损失任务的折现率。WM负荷互作也有显著组；WM负载增加了控制组的折扣，但没有增加AUDs。这些发现表明，澳元与贴现未来激励事件的一般倾向有关，而不管激励的性质如何。
Alcohol Use Disorder (AUD) has been consistently associated with elevated discounting rates for delayed rewards. However, there are few studies of delay discounting of losses in those with AUD even though their drinking behavior suggests that they discount future negative consequences of excessive drinking. The current study extends this literature by examining delay discounting of rewards and losses in a sample of those with AUD (n = 78) and healthy controls (n = 51) in a working memory load and no working memory (WM) load condition. The AUD group discounted both rewards and losses at higher rates than the control group. The WM load increased discounting rates in the reward task, but not the loss task. There was also a significant group by WM load interaction; the WM load increased discounting in controls, but not AUDs. These findings suggest that AUD is associated with a general propensity to discount future incentivized events regardless of nature of the incentive.
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