Department of Psychiatry, Massachusetts General Hospital.
Department of Psychology, Indiana University-Purdue University Indianapolis.
J Consult Clin Psychol. 2020 Oct;88(10):923-936. doi: 10.1037/ccp0000599. Epub 2020 Aug 13.
Motivation deficits remain an unmet treatment need in schizophrenia. Recent research has identified mechanisms underlying motivation deficits (i.e., impaired effort-cost computations, reduced future reward-value representation maintenance) that may be effective treatment targets to improve motivation. This study tested the feasibility and preliminary effectiveness of Mobile Enhancement of Motivation in Schizophrenia (MEMS), an intervention that leverages mobile technology to target these mechanisms with text messages.
Fifty-six participants with a schizophrenia-spectrum disorder were randomized to MEMS (n = 27) or a control condition (n = 29). All participants set recovery goals to complete over 8 weeks. Participants in the MEMS group additionally received personalized, interactive text messages on their personal cellphones each weekday.
Retention and engagement in MEMS were high: 92.6% completed 8 weeks of MEMS, with an 86.1% text message response rate, and 100% reported being satisfied with the text messages. Compared to participants in the control condition, the participants in the MEMS condition had significantly greater improvements in interviewer-rated motivation and anticipatory pleasure and attained significantly more recovery-oriented goals at 8 weeks. There were no significant group differences in purported mechanisms (performance-based effort-cost computations and future reward-value representations) or in self-reported motivation, quality of life, or functioning.
Results demonstrate that MEMS is feasible as a brief, low-intensity mobile intervention that could effectively improve some aspects of motivation (i.e., initiation and maintenance of goal-directed behaviors) and recovery goal attainment for those with schizophrenia-spectrum disorders. More work is needed with larger samples and to understand the mechanisms of change in MEMS. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
动机缺陷仍然是精神分裂症未满足的治疗需求。最近的研究已经确定了动机缺陷的潜在机制(即,努力成本计算受损,减少未来奖励价值的维持),这些机制可能是改善动机的有效治疗靶点。本研究测试了利用移动技术通过短信针对这些机制的精神分裂症动机增强移动(MEMS)干预措施的可行性和初步效果。
56 名精神分裂症谱系障碍患者被随机分为 MEMS(n=27)或对照组(n=29)。所有参与者都设定了在 8 周内完成的康复目标。MEMS 组的参与者还额外收到了个性化的、每天工作日发送到个人手机上的互动短信。
MEMS 的保留率和参与度都很高:92.6%的参与者完成了 8 周的 MEMS,短信回复率为 86.1%,100%的参与者对短信表示满意。与对照组参与者相比,MEMS 组参与者的面谈者评定动机和预期愉悦感有显著改善,在 8 周时实现了更多以康复为导向的目标。在据称的机制(基于表现的努力成本计算和未来奖励价值表示)或自我报告的动机、生活质量或功能方面,两组之间没有显著差异。
结果表明,MEMS 是一种可行的、简短的、低强度的移动干预措施,可以有效地改善精神分裂症谱系障碍患者的某些方面的动机(即,目标导向行为的启动和维持)和康复目标的实现。需要更大的样本量和更深入的了解 MEMS 的变化机制。