Busemeyer Jerome R, Stout Julie C
Department of Psychology, Indiana University, Bloomington, Indiana 47405, USA.
Psychol Assess. 2002 Sep;14(3):253-62. doi: 10.1037//1040-3590.14.3.253.
The Bechara simulated gambling task is a popular method of examining decision-making deficits exhibited by people with brain damage, psychopathology, antisocial personality, or drug abuse problems. However, performance on this task is confounded by complex interdependencies between cognitive, motivational, and response processes, making it difficult to sort out and identify the specific processes responsible for the observed behavioral deficits. The authors compare 3 competing cognitive decision models of the Bechara task in terms of their ability to explain the performance deficits observed in Huntington's disease patients as compared with healthy populations and people with Parkinson's disease. The parameters of the best fitting model are used to decompose the observed performance deficit of the Huntington patients into cognitive, motivational, and response sources.
贝查拉模拟赌博任务是一种常用的方法，用于研究脑损伤、精神病理学、反社会人格或药物滥用问题患者所表现出的决策缺陷。然而，该任务的表现受到认知、动机和反应过程之间复杂的相互依赖关系的混淆，使得难以梳理和识别导致观察到的行为缺陷的具体过程。作者比较了贝查拉任务的三种相互竞争的认知决策模型，看它们在解释亨廷顿舞蹈症患者与健康人群及帕金森病患者相比所观察到的表现缺陷方面的能力。最佳拟合模型的参数被用于将观察到的亨廷顿患者的表现缺陷分解为认知、动机和反应来源。
