As adults, adolescents that underwent adolescent social instability stress (SS) had impaired sexual behaviour compared to control rats (CTL). Across all sessions, a smaller proportion of SS than CTL rats made an ejaculation in the majority of sessions. In the 5th session, the higher mean (±S.E.M.) number of mounts and intromissions before ejaculation of SS rats compared to CTL rats is indicative of reduced copulatory efficiency (*p = 0.004), and a smaller percentage of SS than CTL males completed more than one ejaculatory sequence.
Adapted from McCormick et al. (2013).