1. Mood reactivity
2. Mood Intensity
3. Mood variability

New York University

Affective instability refers to frequent and drastic changes in emotions characterized by high affect intensity, rapid emotion rise times, slow rates of return to emotional baseline, and excessive reactivity to psychosocial cues. Affective instability is a form of emotional dysregulation and may be a key etiological and sustaining factor of BPD.

Affective Instability

Links, P. S., Eynan, R., Heisel, M. J., Barr, A., Korzekwa, M., McMain, S., & Ball, J. S. (2007). Affective instability and suicidal ideation and behavior in patients with borderline personality disorder. Journal of Personality Disorders, 21(1), 72-86.

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