Scales for intensity, pleasantness, and representativeness of odorants were used to rate the characteristics of the individual odorants used in the study. Intensity was rated using Green’s labeled magnitude scale from1 (barely detectable) to 100 (strongest imaginable; Green et al., 1996), whereas pleasantness and representativeness were rated from 1 (very unpleasant or very unrepresentative) to 9 (very pleasant to very representative).
