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Taste sensitivity in anorexia nervosa: A systematic review

OBJECTIVE: There is evidence for altered processing of taste in anorexia nervosa, particularly in the areas of reward processing and hedonic sensitivity. However, research on whether people with anorexia nervosa identify taste stimuli accurately, known as taste sensitivity, has yielded mixed finding...

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Detalles Bibliográficos
Autores principales: Kinnaird, Emma, Stewart, Catherine, Tchanturia, Kate
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282513/
https://www.ncbi.nlm.nih.gov/pubmed/29984498
http://dx.doi.org/10.1002/eat.22886
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author Kinnaird, Emma
Stewart, Catherine
Tchanturia, Kate
author_facet Kinnaird, Emma
Stewart, Catherine
Tchanturia, Kate
author_sort Kinnaird, Emma
collection PubMed
description OBJECTIVE: There is evidence for altered processing of taste in anorexia nervosa, particularly in the areas of reward processing and hedonic sensitivity. However, research on whether people with anorexia nervosa identify taste stimuli accurately, known as taste sensitivity, has yielded mixed findings. The objective of this study was to synthesize the literature on taste sensitivity in this disorder to provide a basis for future discussion on whether altered taste sensitivity may be also implicated in wider atypical taste processing in anorexia. METHOD: Electronic databases were searched systematically to identify published research examining taste sensitivity in anorexia. Search terms were “anorexia nervosa”, or “eating disorder”, combined with “taste”. 18 studies met inclusion criteria. RESULTS: The review of the findings suggest that individuals with AN may experience reduced taste sensitivity that may improve following recovery. However, there was a significant variability in results across studies, potentially reflecting methodological problems including low sample sizes, experimental designs, and uncontrolled confounding variables. Discussion: This review suggests that altered taste sensitivity could represent a component in the wider altered taste processing observed in anorexia nervosa. However, the heterogeneity of findings highlight the need for future research to consider methodological issues raised by this review.
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spelling pubmed-62825132018-12-11 Taste sensitivity in anorexia nervosa: A systematic review Kinnaird, Emma Stewart, Catherine Tchanturia, Kate Int J Eat Disord Reviews OBJECTIVE: There is evidence for altered processing of taste in anorexia nervosa, particularly in the areas of reward processing and hedonic sensitivity. However, research on whether people with anorexia nervosa identify taste stimuli accurately, known as taste sensitivity, has yielded mixed findings. The objective of this study was to synthesize the literature on taste sensitivity in this disorder to provide a basis for future discussion on whether altered taste sensitivity may be also implicated in wider atypical taste processing in anorexia. METHOD: Electronic databases were searched systematically to identify published research examining taste sensitivity in anorexia. Search terms were “anorexia nervosa”, or “eating disorder”, combined with “taste”. 18 studies met inclusion criteria. RESULTS: The review of the findings suggest that individuals with AN may experience reduced taste sensitivity that may improve following recovery. However, there was a significant variability in results across studies, potentially reflecting methodological problems including low sample sizes, experimental designs, and uncontrolled confounding variables. Discussion: This review suggests that altered taste sensitivity could represent a component in the wider altered taste processing observed in anorexia nervosa. However, the heterogeneity of findings highlight the need for future research to consider methodological issues raised by this review. John Wiley and Sons Inc. 2018-07-08 2018-08 /pmc/articles/PMC6282513/ /pubmed/29984498 http://dx.doi.org/10.1002/eat.22886 Text en © 2018 The Authors International Journal of Eating Disorders Published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Reviews
Kinnaird, Emma
Stewart, Catherine
Tchanturia, Kate
Taste sensitivity in anorexia nervosa: A systematic review
title Taste sensitivity in anorexia nervosa: A systematic review
title_full Taste sensitivity in anorexia nervosa: A systematic review
title_fullStr Taste sensitivity in anorexia nervosa: A systematic review
title_full_unstemmed Taste sensitivity in anorexia nervosa: A systematic review
title_short Taste sensitivity in anorexia nervosa: A systematic review
title_sort taste sensitivity in anorexia nervosa: a systematic review
topic Reviews
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6282513/
https://www.ncbi.nlm.nih.gov/pubmed/29984498
http://dx.doi.org/10.1002/eat.22886
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