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Article
The relationship between taste sensitivity to phenylthiocarbamide and anhedonia
Psychiatry Research
  • Justin Thomas, Zayed University
  • Wahda Al-Mesaabi, Zayed University
  • Eman Bahusain, Zayed University
  • Meera Mutawa, Zayed University
Document Type
Article
Publication Date
2-28-2014
Abstract

It has been proposed that taste sensitivity to bitter compounds such as, phenylthiocarbamide (PTC) and 6 n-propylthiouracil (PROP), represents a genetic marker for an increased vulnerability to depressive illness. Previous explorations of this idea have proven equivocal. This study refines and further explores this idea by focusing specifically on anhedonia (diminished hedonic capacity), a key symptom in some depressive illness, linked also with sensory pleasure. It is hypothesized that diminished PTC taste sensitivity will be associated with more general decrements in hedonic capacity (anhedonia). An opportunity sample of 198 university students were assessed using paper strips impregnated with PTC, the same participants also completed a widely used assessment of hedonic capacity, the Snaith-Hamilton Pleasure Scale (SHAPS). Hedonic capacity scores positively correlated with PTC taste sensitivity; specifically, heightened hedonic capacity was associated with heightened sensitivity to the bitter taste of PTC. Furthermore, modest differences were observed between those least (non-tasters) and most (supertasters) sensitive to PTC, with non-tasters reporting significantly lower hedonic capacity scores than supertasters. PTC taste sensitivity may represent a peripheral risk factor for anhedonia. © 2013 Elsevier Ireland Ltd.

Publisher
Elsevier Ireland Ltd
Disciplines
Keywords
  • Depression,
  • Genetic,
  • Hedonic capacity,
  • PTC
Scopus ID
84893725175
Indexed in Scopus
Yes
Open Access
No
https://doi.org/10.1016/j.psychres.2013.11.026
Citation Information
Justin Thomas, Wahda Al-Mesaabi, Eman Bahusain and Meera Mutawa. "The relationship between taste sensitivity to phenylthiocarbamide and anhedonia" Psychiatry Research Vol. 215 Iss. 2 (2014) p. 444 - 447 ISSN: <a href="https://v2.sherpa.ac.uk/id/publication/issn/0165-1781" target="_blank">0165-1781</a>
Available at: http://works.bepress.com/justin-thomas28211/32/