酒精对决策和认知处理的影响在奖励不确定性任务中
Freya Whittaker1, Angelica DeFalco2, Rachel S Goldblum1
1School of Psychological Science, Oregon State University.
概括
酒精消费降低了对不确定性的厌恶,导致在决策中增加了风险承担. 这项研究发现,酒精,而不是安慰剂,改变了选择和大脑反应,影响了判断力.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 行为科学 行为科学
背景情况:
- 饮酒与增加冒险行为有关.
- 实验室研究显示,关于酒精对冒险行为的影响,结果不一致.
- 影响酒精诱导风险承担的特定背景需要进一步调查.
研究的目的:
- 在奖励不确定性框架内调查酒精对决策的影响.
- 为了确定酒精是否减少对不确定性的厌恶.
- 探索与酒精诱导的决策相关的神经机制.
主要方法:
- 参与者接受了酒精,安慰剂或非酒精饮料.
- 一个奖励不确定性任务被用来评估某些和不确定的金钱奖励之间的选择.
- 测量了与P3事件相关的潜力,以探索神经机制.
主要成果:
- 非醉酒的参与者表现出对不确定性的厌恶.
- 酒精消费降低了奖励不确定性厌恶,这表明药理学效应.
- 酒精减弱了P3反应,表明认知处理受损,并可能做出更有风险的选择.
结论:
- 酒精会抑制对食欲领域的不确定性反应,扩展了先前关于厌恶性压力因素的发现.
- 研究结果表明,酒精对决策的影响是药理性的,而不是由于期望.
- 需要进一步的研究来开发缓解酒精对决策的负面影响的干预措施.
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