“…Generally speaking, PE refers to conditions in which imagining, recalling, observing, or learning of others' positive outcomes can trigger positive states in the empathizer. Operationally, PE has been described referring to the following three distinct empathic states: (i) empathic cheerfulness, which is the display of positive emotion to a suffering person in order to cheer that person up [Light et al, ]; (ii) empathic happiness, a joyful response to positive events that involve others [Batson et al, ]; and (iii) goodwill, the desire to see others in a happy state [Light et al, ], which may represent an innate attitude in promoting prosocial behaviours. While scarce, previous studies indicate that personal and vicarious rewards may be represented in both distinct and overlapping neural networks [Knutson et al, ; Krishnan et al, ; Liu et al, ].…”