Mellis Alexandra M, Snider Sarah E, Bickel Warren K
Addiction Recovery Research Center, Virginia Tech Carilion Research Institute.
Addiction Recovery Research Center.
Exp Clin Psychopharmacol. 2018 Apr;26(2):113-118. doi: 10.1037/pha0000168. Epub 2018 Jan 15.
Reading experimenter-provided narratives of negative income shock has been previously demonstrated to increase impulsivity, as measured by discounting of delayed rewards. We hypothesized that writing these narratives would potentiate their effects of negative income shock on decision-making more than simply reading them. In the current study, 193 cigarette-smoking individuals from Amazon Mechanical Turk were assigned to either read an experimenter-provided narrative or self-generate a narrative describing either the negative income shock of job loss or a neutral condition of job transfer. Individuals then completed a task of delay discounting and measures of affective response to narratives, as well as rating various narrative qualities such as personal relevance and vividness. Consistent with past research, narratives of negative income shock increased delay discounting compared to control narratives. No significant differences existed in delay discounting after self-generating compared to reading experimenter-provided narratives. Positive affect was lower and negative affect was higher in response to narratives of job loss, but affect measures did not differ based on whether narratives were experimenter-provided or self-generated. All narratives were rated as equally realistic, but self-generated narratives (whether negative or neutral) were rated as more vivid and relevant than experimenter-provided narratives. These results indicate that the content of negative income shock narratives, regardless of source, consistently drives short-term choices. (PsycINFO Database Record
先前的研究表明,阅读实验者提供的关于负面收入冲击的叙述会增加冲动性,这通过对延迟奖励的折扣来衡量。我们假设,撰写这些叙述比仅仅阅读它们更能增强负面收入冲击对决策的影响。在当前的研究中,来自亚马逊土耳其机器人平台的193名吸烟个体被分配去阅读实验者提供的叙述,或者自行撰写一篇描述失业的负面收入冲击或工作调动的中性情况的叙述。然后,个体完成了一项延迟折扣任务以及对叙述的情感反应测量,同时对各种叙述质量进行评分,如个人相关性和生动性。与过去的研究一致,与对照叙述相比,负面收入冲击的叙述增加了延迟折扣。自行撰写叙述与阅读实验者提供的叙述相比,延迟折扣没有显著差异。对失业叙述的积极情绪较低,消极情绪较高,但情感测量结果在叙述是由实验者提供还是自行撰写方面没有差异。所有叙述的现实感评分相同,但自行撰写的叙述(无论是负面还是中性)比实验者提供的叙述更生动、更相关。这些结果表明,无论来源如何,负面收入冲击叙述的内容始终会影响短期选择。(PsycINFO数据库记录)