A Psychological Scale for Body Odour Awareness

People differ in their awareness for odours surrounding them. Body odours are a special category because they are a medium for social communication. Body odours evoke approach and avoidance behaviours such as withdrawing from social interaction, and personal hygiene behaviours like washing or using fragranced products. So far it has remained unclear what the role of conscious awareness of body odours is in guiding social behaviour. Here, we present a new psychological scale on odour awareness, focusing specifically on body odours: the Body Odour Awareness Scale (BOAS). The scale was validated measuring body odour awareness in two dimensions (valence and source) over four domains: awareness for one’s own body odours, both favourable and unfavourable, and awareness for other persons’ body odours, both favourable and unfavourable. An explorative follow-up study suggested regional differences exist in body odour awareness, but these are not the same for every dimension of body odour awareness. Taken together, these results suggest the new BOAS is a useful tool to assess differences in awareness for body odours, and uncover the application potential for this new and validated scale