“…Studies were included in this meta-analysis if they reported on the association between early attachment and (a) baseline physiological activity and/or (b) physiological reactivity to interpersonal stress. Studies reporting on physiological reactivity to noninterpersonal stressors (e.g., emotion-eliciting procedures designed to assess temperament, e.g., Paret, Bailey, Roche, Bureau, & Moran, 2015;Roque, Ver ıssimo, Oliveira, & Oliveira, 2012;Van Bakel & Riksen-Walraven, 2004) or during cognitive engagement tasks (Kidwell, 2001) were excluded from the current meta-analysis. As specified, the corpus of studies focused on physiological reactivity to interpersonal stress, and all but one study examined reactivity in response to separation-reunion procedures (e.g., SSP; Ainsworth et al, 1978).…”