Acceptance and commitment therapy (ACT) and its counterpart, relational frame theory (RFT), represent emerging areas of research and professional interest for behavior analysts. We extend traditional RFT approaches by emphasizing relational framing as a dynamic pattern of behavior with implications for ACT-based strategies implemented by behavior analysts in practice and in research. We borrow from emerging approaches within affective dynamics, relational density theory, and the hyper-dimensional multilevel model to develop some immediate considerations for practitioners. We then extend an approach grounded in relational dynamics to the six core processes of the ACT hexaflex not only to influence negative affective patterns of relational behavior but also to promote greater psychological flexibility and well-being. Finally, we turn this account inward to discuss our own rigidity as a field and the necessity to engage more flexibly with our own science, ultimately to improve the lives of clients whom we serve.

接受与承诺疗法（ACT）及其对应的关系框架理论（RFT）代表了行为分析师的新兴研究领域和专业兴趣。我们通过强调关系框架作为一种动态行为模式来扩展传统的 RFT 方法，这对行为分析师在实践和研究中实施的基于 ACT 的策略具有影响。我们借鉴情感动力学、关系密度理论和超维多层次模型中的新兴方法，为实践者提供一些直接的考虑。然后，我们将一种基于关系动力学的方法扩展到 ACT hexaflex 的六个核心过程，不仅可以影响关系行为的负面情感模式，而且可以促进更大的心理灵活性和幸福感。最后，我们将这个话题转向内部，讨论我们作为一个领域的僵化性，以及更灵活地参与我们自己的科学的必要性，最终改善我们所服务的客户的生活。