用多轮对话实现心理认知重构,提升负面思维转化效果
Crisp: Cognitive Restructuring of Negative Thoughts through Multi-turn Supportive Dialogues
- 设计识别与重构双阶段对话流程,支持迭代式认知调整
- 在人类评估中,7B/14B模型在单点、成对和干预测试中均表现更优
- 适用于心理健康辅助系统,尤其适合资源短缺场景
认知重构(CR)是一种通过多轮对话识别并重塑个体负面思维的心理治疗方法,以应对心理健康挑战。由于临床医生短缺和社会偏见,亟需发展人-大模型交互式心理治疗。现有方法多采用简单文本重写、固定模式对话或单次完成的重构流程,难以契合真实心理治疗过程。为此,本文提出CRDial框架,包含专门设计的负向思维识别与重构阶段,融合句级支持性对话策略,并引入多通道循环机制实现迭代式认知重构。基于该框架,我们从大模型中提炼出Crisp这一大规模高质量双语对话数据集,并训练了7B和14B规模的基于Crisp的对话型大模型(Crispers)。大量人工研究表明,Crispers在点对点、成对及干预评估中均表现出显著优势。
原文摘要 · Abstract (English)
Cognitive Restructuring (CR) is a psychotherapeutic process aimed at identifying and restructuring an individual's negative thoughts, arising from mental health challenges, into more helpful and positive ones via multi-turn dialogues. Clinician shortage and stigma urge the development of human-LLM interactive psychotherapy for CR. Yet, existing efforts implement CR via simple text rewriting, fixed-pattern dialogues, or a one-shot CR workflow, failing to align with the psychotherapeutic process for effective CR. To address this gap, we propose CRDial, a novel framework for CR, which creates multi-turn dialogues with specifically designed identification and restructuring stages of negative thoughts, integrates sentence-level supportive conversation strategies, and adopts a multi-channel loop mechanism to enable iterative CR. With CRDial, we distill Crisp, a large-scale and high-quality bilingual dialogue dataset, from LLM. We then train Crispers, Crisp-based conversational LLMs for CR, at 7B and 14B scales. Extensive human studies show the superiority of Crispers in pointwise, pairwise, and intervention evaluations.
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