Social Pain Disrupts Emotion-Action Brain-State Dynamics in Adolescents with Non-Suicidal Self-Injury

The study examined 106 depressed adolescents, 67 with non‑suicidal self‑injury (NSSI) and 39 without, using EEG microstate analysis during social pain, physical pain, and rest. A deep sequence model distinguished NSSI participants from controls with 68.55% accuracy, revealing weakened transitions between microstates linked to emotion/interoception (MS3) and action preparation (MS5) during social pain. Time‑resolved analyses showed altered recruitment patterns of these microstates in NSSI adolescents, indicating disrupted emotion‑action coupling.

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