“…We found no examples of primes being used in traditional societies to study reproductive behaviour. We found that priming was used to investigate influences on sexual and non-sexual risk taking [43,53,54], mate choice [39,40,46,56], fertility intentions and interest in children [6,38,41,45,[57][58][59][60], and parental investment preferences [39,42,55]. Participants were primed through a variety of means, including: reading texts [40,45,46,54,56], word completion tasks ( [6,41], photos [43,46], thought experiments [42,57,59,60], memory essays [53,55] and preceding questions [38,39,58] (see § §5a,c-e, 6b,c,e,j-l,o,p).…”