Some like it, some do not: behavioral responses and central processing of olfactory-trigeminal mixture perception.

ABSTRACT: Exploring the potential of eucalyptol as a masking agent for aversive odors, we found that eucalyptol masks the olfactory but not the trigeminal sensation of ammonia in a previous study. Here, we further investigate the processing of a mixture consisting of eucalyptol and ammonia, two olfactory-trigeminal stimuli. We presented the two pure odors and a mixture thereof to 33 healthy participants. The nostrils were stimulated alternately (monorhinal application). We analyzed the behavioral ratings (intensity and pleasantness) and functional brain images. First, we replicated our previous finding that, within the mixture, the eucalyptol component suppressed the olfactory intensity of the ammonia component. Second, mixture pleasantness was rated differently by participants depending on which co

SUBMITTER: Muschenich FS 

PROVIDER: S-EPMC7817597 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature