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      Effect of Aging on Hedonic Appreciation of Pleasant and Unpleasant Odors

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          Abstract

          Does hedonic appreciation evolve differently for pleasant odors and unpleasant odors during normal aging? To answer this question we combined psychophysics and electro-encephalographic recordings in young and old adults. A first study showed that pleasant odorants (but not unpleasant ones) were rated as less pleasant by old adults. A second study validated this decrease in hedonic appreciation for agreeable odors and further showed that smelling these odorants decreased beta event-related synchronization in aged participants. In conclusion, the study offers new insights into the evolution of odor hedonic perception during normal aging, highlighting for the first time a change in processing pleasant odors.

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          Author and article information

          Contributors
          Role: Editor
          Journal
          PLoS One
          PLoS ONE
          plos
          plosone
          PLoS ONE
          Public Library of Science (San Francisco, USA )
          1932-6203
          2013
          24 April 2013
          : 8
          : 4
          : e61376
          Affiliations
          [1]CNRS UMR5292, INSERM U1028, Lyon Neuroscience Research Center, University Lyon, Lyon, France
          Duke University, United States of America
          Author notes

          Competing Interests: The authors have declared that no competing interests exist.

          Conceived and designed the experiments: PJ MT CR MB. Performed the experiments: PJ. Analyzed the data: PJ CR MB. Contributed reagents/materials/analysis tools: PJ MT. Wrote the paper: PJ CR MB.

          Article
          PONE-D-13-02058
          10.1371/journal.pone.0061376
          3634785
          23637821
          8f79187d-4667-479c-a6fe-97886f286a18
          Copyright @ 2013

          This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

          History
          : 14 January 2013
          : 8 March 2013
          Page count
          Pages: 7
          Funding
          This work was funded by the Fondation Roudnitska, the Region Rhone-Alpes (CMIRA Explora' doc 2011) and the French National Research Agency (ANR, EMCO Program, ICEO project). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
          Categories
          Research Article
          Biology
          Anatomy and Physiology
          Neurological System
          Sensory Physiology
          Physiological Processes
          Aging
          Neuroscience
          Computational Neuroscience
          Sensory Systems
          Sensory Systems
          Olfactory System
          Sensory Perception
          Medicine
          Anatomy and Physiology
          Neurological System
          Sensory Physiology
          Sensory Systems
          Social and Behavioral Sciences
          Psychology

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          Uncategorized

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