Parasympathetic nervous system activity predicts mood repair use and its effectiveness among adolescents with and without histories of major depression.

371 adolescents, comprising those with depression histories (n = 210) and emotionally healthy peers (n = 161).

Relationships between respiratory sinus arrhythmia (RSA) patterns (at rest and in response to a sad film), trait mood repair, and the effectiveness of a mood repair response in the laboratory (state mood repair)surrogate