“…Heart-rate deceleration has been shown to occur in contexts that evoke a sympathetic/compassionate response, whereas heart-rate acceleration occurs in contexts that evoke distress (see Eisenberg et al, 2006; Goetz et al, 2010). Moreover, researchers have sometimes found that higher levels of baseline RSA (or heart-rate variability) were associated with higher levels of empathy or sympathy (Diamond, Fagundes, & Butterworth, 2012; Liew et al, 2011), low personal distress (Fabes, Eisenberg, & Eisenbud, 1993), and prosocial behavior (Fabes, Eisenberg, Karbon, Troyer, & Switzer, 1994). However, other researchers have not found support, or have found mixed support, for these relations (Graziano, Keane, & Calkins, 2007; Hastings, Zahn-Waxler, Robinson, Usher, & Bridges, 2000; Zahn-Waxler, Cole, Welsh, & Fox, 1995).…”