Lexical olfaction recruits olfactory orbitofrontal cortex in metaphorical and literal contexts.

Autor: Pomp J; Faculty of Psychology, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany; Institute of Psychology, University of Münster, Fliednerstrasse 21, 48149 Münster, Germany. Electronic address: jennifer.pomp@ruhr-uni-bochum.de., Bestgen AK; Faculty of Psychology, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany., Schulze P; Faculty of Psychology, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany., Müller CJ; Faculty of Psychology, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany; International Psychoanalytic University, Stromstrasse 1, 10555 Berlin, Germany., Citron FMM; Department of Psychology, Lancaster University, Fylde College, Lancaster LA1 4YF, UK., Suchan B; Faculty of Psychology, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany., Kuchinke L; Faculty of Psychology, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany; International Psychoanalytic University, Stromstrasse 1, 10555 Berlin, Germany.
Jazyk: angličtina
Zdroj: Brain and language [Brain Lang] 2018 Apr; Vol. 179, pp. 11-21. Date of Electronic Publication: 2018 Feb 23.
DOI: 10.1016/j.bandl.2018.02.001
Abstrakt: The investigation of specific lexical categories has substantially contributed to advancing our knowledge on how meaning is neurally represented. One sensory domain that has received particularly little attention is olfaction. This study aims to investigate the neural representation of lexical olfaction. In an fMRI experiment, participants read olfactory metaphors, their literal paraphrases, and literal olfactory sentences. Regions of interest were defined by a functional localizer run of odor processing. We observed activation in secondary olfactory areas during metaphorical and literal olfactory processing, thus extending previous findings to the novel source domain of olfaction. Previously reported enhanced activation in emotion-related areas due to metaphoricity could not be replicated. Finally, no primary olfactory cortex was found active during lexical olfaction processing. We suggest that this absence is due to olfactory hedonicity being crucial to understand the meaning of the current olfactory expressions. Consequently, the processing of olfactory hedonicity recruits secondary olfactory areas.
(Copyright © 2018 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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