Persons with borderline personality disorder (BPD) experience heightened emotional instability. Different components underlie instability, and the relation between instability and well-being could be confounded by average emotionality and within-person standard deviation across emotional states, reflecting variability. Therefore, the goal was to examine which pattern of emotion dynamics parsimoniously captures the emotional trajectories of persons with BPD. Forty persons with BPD, 38 clinical controls in a major depressive episode, and 40 healthy controls rated the intensity of their emotions 10 times a day for 1 week. After correction for differences in average emotionality, persons with BPD showed heightened emotional instability compared to both control groups. When additionally correcting for emotional variability, the authors found that instability indices did not differ between groups anymore. This shows that persons with BPD differ from control groups in the magnitude of emotional deviations from the emotional baseline, and not necessarily in the degree of abruptness of these deviations.

中文翻译：

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边缘性人格障碍中情绪动力学的统计特异性。

患有边缘性人格障碍 (BPD) 的人会经历情绪不稳定。不同的组成部分是不稳定性的基础，不稳定性和幸福感之间的关系可能会被情绪状态的平均情绪和人内标准偏差混淆，反映了可变性。因此，我们的目标是检查哪种情绪动态模式能够简单地捕捉 BPD 患者的情绪轨迹。40 名 BPD 患者、38 名患有重度抑郁症的临床对照者和 40 名健康对照者在 1 周内每天 10 次评估他们的情绪强度。在对平均情绪差异进行校正后，与两个对照组相比，BPD 患者的情绪不稳定程度更高。当另外校正情绪变化时，作者发现，各组之间的不稳定性指数不再存在差异。这表明患有 BPD 的人与对照组的不同之处在于情绪偏离情绪基线的程度，而不一定是这些偏离的突然程度。