Perception and Discrimination of Body Odors of Different Ages. Abstract. Our natural body odor goes through several stages of age dependent changes in chemical composition as we grow older. Similar changes have been reported for several animal species and are thought to facilitate age discrimination of an individual based on body odors, alone. We sought to determine whether humans are able to discriminate between body odor of humans of different ages. Body odors were sampled from three distinct age groups Young 2. Middle age 4. 55. Old age 7. 59. Perceptual ratings and age discrimination performance were assessed in 4. There were significant differences in ratings of both intensity and pleasantness, where body odors from the Old age group were rated as less intense and less unpleasant than body odors originating from Young and Middle age donors. Participants were able to discriminate between age categories, with body odor from Old age donors mediating the effect also after removing variance explained by intensity differences.
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November 2017
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