微调行为心理学LLM,用于可扩展的健康指导
Sriya Mantena1,2, Anders Johnson1, Marily Oppezzo3,4
1Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA USA.
NPJ cardiovascular health
|September 25, 2025
概括
我的心脏计数 (MHC) -Coach是一个大型语言模型,提供个性化的体育活动教练. 它将信息定制为个人心理,在用户偏好和行为改变感知的有效性方面超过人类专家.
科学领域:
- 数字健康数字健康
- 行为科学 行为科学
- 人工智能的人工智能
背景情况:
- 通过智能手机进行个性化教练可以增强身体活动.
- 目前的方法通常使用静态,人为生成的消息.
- 长期的行为改变需要定制,动态的支持.
研究的目的:
- 介绍我的心脏计数 (MHC) -Coach,一个大型语言模型 (LLM) 提供个性化的健康指导.
- 微调一个LLM在变化的跨理论模型为量身定制的消息.
- 为了评估MHC-Coach对人类专家教练的身体活动的有效性.
主要方法:
- 开发了MHC-Coach,这是一个精细调整在跨理论变化模型上的LLM.
- 招募了632名参与者进行比较研究.
- 评估了MHC-Coach与人类专家信息的用户偏好和专家评分.
主要成果:
- 68.0%的参与者更喜欢与他们的变化阶段相匹配的MHC-Coach信息 (P < 0.001).
- 专家们对MHC-Coach信息的感知有效性 (4.4对2.8) 和超理论模型对齐 (4.1对3.5) 的评价更高.
- MHC-Coach表现出卓越的个性化和与行为科学原则的一致性.
结论:
- 法学士可以运行行为科学框架,以提供个性化的健康指导.
- MHC-Coach显示了促进长期体育活动的潜力.
- 这种方法可能有助于大规模降低心血管疾病风险.
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