Instructional cues modify performance on the Iowa Gambling Task
Instructional cues modify performance on the Iowa Gambling Task
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DOI：
10.1016/j.bandc.2005.05.007
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发表时间：
2006-03-01
影响因子：
2.5
通讯作者：
Olmstead, MC
中科院分区：
文献类型：
--
作者：
Balodis, IM;MacDonald, TK;Olmstead, MC
本研究旨在探讨急性酒精中毒是否会导致腹内侧前额叶（VMF）皮质功能和冲动反应任务的决策受损。参与者完成了爱荷华州赌博任务（IGT），一个针对VMF的决策测试，和纽曼坚持任务（NT），一个冲动的措施。冲动的人格测量使用Barratt冲动量表（BIS）进行评估。为了鼓励对这两项任务的自然反应，参与者被错误地告知该研究正在研究酒精对记忆的影响;冲动性任务被称为“分心”任务。在IGT上的成功表现与特定的教学线索以及对实验目的的了解有关。醉酒和清醒的参与者的表现没有差异。随后的一项研究揭示了实验的真正目的，证实酒精不会影响IGT表现。最重要的是，IGT的预防敏感性强调了显著线索对决策的重要性。(c)2005年爱思唯尔公司All rights reserved.
The current study investigated whether acute alcohol intoxication produces impaired decision-making on tasks assessing ventromedial prefrontal (VMF) cortex functioning and impulsive responding. Participants completed the Iowa Gambling Task (IGT), a decision-making test targeting the VMF, and the Newman Perseveration Task (NT), a measure of impulsivity. Personality measures of impulsivity were assessed using the Barratt Impulsiveness Scale (BIS). To encourage natural responding on both tasks, participants were falsely informed that the study was examining the effects of alcohol on memory; the impulsivity tasks were presented as 'distractor' tasks. Advantageous performance on the IGT was related to specific instructional cues as well as to knowledge about the experimental purpose. Performance of intoxicated and sober participants did not differ. A subsequent study in which the true purpose of the experiment was revealed confirmed that alcohol does not affect IGT performance. Most importantly, the instruction-sensitivity of the IGT emphasizes the importance of salient cues for decision-making. (c) 2005 Elsevier Inc. All rights reserved.