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Psy137HormonesandSocialBehavupdate

Released in urine or feces • m pheromone is related

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Unformatted text preview: Released in urine or feces • M pheromone is related to the androgens • E.g. urine from castrated rats does not induce estrus • Evidence that the F hormone is also released in urine 13 Pheromones: Mammals • Evidence in Rodents • Accessory Olfactory Bulb projects to the vomernasal amygdala Table 6.3 (Part 1) Table 6.3 (Part 2) 16 Pheromones: Humans Humans infants can correctly identify their own mother's milk and are much more likely to nurse when its their own mother female menstrual cycles can be altered by pheromones - the sorority effect male and female behavior is highly influenced by pheromones t-shirt experiment - musky versus sweet - the musky odor is rated by males and females as unpleasant and is thought to serve as a territorial marker among males 17 Pheromones: Humans Putative Human Pheromones Androstenone Van Toller et. al (1983) demonstrated that skin conductance increases after exposure to this compound. Androstadienone In a speed-dating study, women applied androstadienone in clove oil, clove oil alone or water alone to their upper lip and rated the attractiveness of men (Saxton 2008). Women exposed to androstadienone gave the men higher ratings of overall attractiveness compared with women exposed to clove oil or water alone. Pheromones: Humans Androstenol Michael Kirk-Smith et. al (1978) conducted a study in which 24 male and female participants rated pictures of people, animals and buildings while wearing either a clean surgical mask or a surgical mask containing androstenol. Participants exposed to androstenol rated pictures of women as sexier, more attractive, warmer and sometimes more friendly. They also rated pictures of men as warmer and sometimes more friendly. Anthony J Greene 19 Pheromones: Alpha Androstenol alpha androstenol (predominantly secreted by females) 1. Increase sexual arousal in males 2. Increases male perception of female attractiveness • women in photographs were rated as significantly more sexually attractive when judges were first exposed to alpha androstenol 1. Increases willingness of females to initiate social contact with males • females exposed to alpha androstenol were much more receptive to male-initiated contact • more likely to seek out male company • less likely to seek female company Anthony J Greene 20 Pheromones: Alpha Androstenol alpha androstenol (predominantly secreted by females) 1. Increase sexual arousal in males 2. Increases male perception of female attractiveness • women in photographs were rated as significantly more sexually...
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