Fontes Rafaela M, Bovo Ana Carolina L, Freitas-Lemos Roberta, Bickel Warren K
Fralin Biomedical Research Institute, Virginia Tech Carilion.
Exp Clin Psychopharmacol. 2025 Jun;33(3):291-299. doi: 10.1037/pha0000769. Epub 2025 Mar 3.
Individuals with substance use disorder (SUD) show consistently higher delay discounting (DD) rates than controls for both future and past outcomes, as well as for gains and losses. However, differences in these DD effects (e.g., tense and sign) among individuals in SUD recovery have yet to be explored. Therefore, the goal of the present study was to (a) investigate differences in discounting of past and future gains and losses among individuals in SUD recovery and (b) examine differences in these DD effects between individuals in different stages of remission (i.e., not in remission, in early remission, or in sustained remission). Our results indicate that individuals in recovery discount past and future gains, but not losses, symmetrically. Additionally, individuals in recovery discount gains more than losses (i.e., sign effect) for the future but not for the past. Finally, those in sustained remission showed significantly lower DD rates than those not in remission, regardless of the DD task. Thus, other discounting tasks might provide a similarly accurate measure of DD and can be employed to assess differences in discounting between those in remission and those not in remission. (PsycInfo Database Record (c) 2025 APA, all rights reserved).
患有物质使用障碍(SUD)的个体在未来和过去的结果以及收益和损失方面,延迟折扣(DD)率始终高于对照组。然而,SUD康复个体之间这些DD效应(如时态和正负)的差异尚未得到探索。因此,本研究的目的是:(a)调查SUD康复个体在过去和未来收益与损失折扣方面的差异;(b)检查处于不同缓解阶段(即未缓解、早期缓解或持续缓解)的个体之间这些DD效应的差异。我们的结果表明,康复个体对过去和未来收益的折扣是对称的,但对损失不是。此外,康复个体对未来收益的折扣大于对损失的折扣(即正负效应),但对过去不是。最后,无论DD任务如何,持续缓解的个体的DD率显著低于未缓解的个体。因此,其他折扣任务可能提供类似准确的DD测量方法,可用于评估缓解者和未缓解者之间的折扣差异。(PsycInfo数据库记录(c)2025美国心理学会,保留所有权利)