Emotion Review, Volume 14, Issue 2, Page 132-160, April 2022. Autonomic nervous system activity is a fundamental component of emotional responding. It is not clear, however, whetherpositive emotional states are associated with differential ANS reactivity. To address this issue, we conducted a meta-analytic review of 120 articles, measuring ANS activity during 11 elicitedpositive emotions, namely amusement, attachment love, awe, contentment, craving, excitement, gratitude, joy, nurturant love, pride, and sexual desire. We identified a widely dispersed collection (...) of studies. Univariate results indicated thatpositive emotions produce no or weak and highly variable increases in ANS reactivity. However, the limitations of work to date – which we discuss – mean that our conclusions should be treated as empirically grounded hypotheses that future research should validate. (shrink)