摘要: Context Human–animal interaction (HAI) is widely used as a method of reducing psychological distress. However, research findings in support HAI have not kept pace with the widespread prevalence practice. Objective I review and synthesize quantitative evidence for influence on distress outline future directions research. Results The suggests that has small-to-medium effect but does clarify whether animals account treatment effects. Research also determined positive effects observed circumscribed programs extend to companion animal ownership. Conclusion HAI needs address methodological limitations expand focus beyond outcome studies. By increasing our understanding processes through which reduces distress, circumstances under it most effective at doing so, animals, we can enhance impact HAI.