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Exploring the Relationship Between Psychopathy and Taste Perception

  • Published:
Chemosensory Perception

Abstract

Introduction

Higher psychopathic traits have been consistently associated with poorer olfactory abilities; however, only one study as reported by Sagioglou and Greitemeyer (Appetite 96:299-308, 2016) has explored whether psychopathy is linked to taste perception. Using self-report measures, Sagioglou and Greitemeyer (2016) found higher psychopathic traits were associated with higher liking ratings for bitter stimuli. The aim of the current study was to determine whether direct assessment of taste perception was linked with psychopathic traits.

Methods

Seventy-eight participants (41 females) rated four tastants (i.e. bitter, sweet, salty and sour), at four concentrations. For each of the 16 stimuli, participants rated how much they liked, how disgusting and how intense they perceived each tastant.

Results

Contrary to previous findings, higher psychopathic traits were not associated with higher liking ratings for bitter stimuli, but instead associated with higher disgust ratings of bitter stimuli. Moreover, higher psychopathic traits were associated with higher taste intensity ratings, suggesting psychopathy may be associated with increased taste sensitivity.

Conclusions

Higher degrees of psychopathic traits are associated with higher disgust ratings of bitter stimuli.

Implications

The findings suggest that the chemical senses may be another confirmatory method for differentiating those with low and high psychopathic traits.

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Authors and Affiliations

  1. Food, Flavour and Fragrance Lab, Department of Psychology, Macquarie University, Sydney, NSW, Australia

    Mehmet K. Mahmut & Breanna Banzer

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  1. Mehmet K. Mahmut
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  2. Breanna Banzer
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Correspondence to Mehmet K. Mahmut.

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The authors declare that they have no conflict of interest.

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Macquarie University’s Ethics Committee approved the ethical aspects of this study.

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Written informed consent was obtained from each participant before the study commenced.

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Mahmut, M.K., Banzer, B. Exploring the Relationship Between Psychopathy and Taste Perception. Chem. Percept. 14, 47–56 (2021). https://doi.org/10.1007/s12078-020-09278-9

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