Nunez Cecilia, Yoon Jin H, de Dios Constanza, Dang Vincent, Lane Scott D, Vincent Jessica N, Schmitz Joy M, Wardle Margaret C
Department of Psychology, University of Illinois Chicago.
Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston.
Exp Clin Psychopharmacol. 2025 Feb;33(1):91-99. doi: 10.1037/pha0000744. Epub 2024 Aug 29.
Cocaine use disorder (CUD) is a major public health issue, and greater cocaine use severity has been associated with worse treatment retention and outcomes. Therefore, greater understanding of processes that influence cocaine use is needed. Both anhedonia (i.e., undervaluation of nondrug rewards) and cocaine demand (i.e., cocaine valuation) are related to cocaine use severity and thematically related to each other at face value, but no studies have directly compared these outcomes to our knowledge. The present study represents a secondary analysis from a two-phase sequential, multiple assignment, randomized trial aimed at developing adaptive interventions for CUD. We examined the relationship between anhedonia and cocaine demand and how these measures were related to cocaine use severity. Participants ( = 116) were treatment-seeking adults with CUD. All measures were taken at baseline before treatment initiation. Analyses revealed (a) and of relationships between cocaine demand factors (i.e., persistence, amplitude) and anhedonia (PP values ≥ 77.8%); (b) positive association between cocaine demand (both persistence and amplitude) and measures of cocaine use severity, with the exception of one relationship, which was in the opposite direction; and (c) demand amplitude continued to be positively related to cocaine use severity, even when considering anhedonia. Overall, findings from this study indicate cocaine demand relates to cocaine use severity more strongly than anhedonia. (PsycInfo Database Record (c) 2025 APA, all rights reserved).
可卡因使用障碍(CUD)是一个重大的公共卫生问题,可卡因使用严重程度越高,与治疗依从性和治疗效果越差相关。因此,需要更深入地了解影响可卡因使用的过程。快感缺乏(即对非药物奖励的低估)和可卡因需求(即可卡因估值)都与可卡因使用严重程度相关,并且从表面上看在主题上相互关联,但据我们所知,尚无研究直接比较过这些结果。本研究是一项两阶段序贯、多重分配随机试验的二次分析,旨在为CUD开发适应性干预措施。我们研究了快感缺乏与可卡因需求之间的关系,以及这些指标与可卡因使用严重程度的关系。参与者(n = 116)为寻求治疗的患有CUD的成年人。所有测量均在治疗开始前的基线期进行。分析显示:(a)可卡因需求因素(即持续性、幅度)与快感缺乏之间存在显著关系(PP值≥77.8%);(b)可卡因需求(持续性和幅度)与可卡因使用严重程度指标之间呈正相关,但有一个关系方向相反;(c)即使考虑快感缺乏,需求幅度仍与可卡因使用严重程度呈正相关。总体而言,本研究结果表明,可卡因需求与可卡因使用严重程度的关系比快感缺乏更强。(PsycInfo数据库记录(c)2025美国心理学会,保留所有权利)