A parosmia severity index based on word-classification predicts olfactory abilities and impairment

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Fältnamn	Indikatorer	Metadata
000		03529naa a2200457 4500
001		oai:DiVA.org:su-218892
003		SwePub
008		230626s2023 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2188922 URI
024	7	a https://doi.org/10.1007/s00405-023-07893-22 DOI
040		a (SwePub)su
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Hörberg, Thomas,d 1979-u Stockholms universitet,Perception och psykofysik4 aut0 (Swepub:su)thh1385
245	1 0	a A parosmia severity index based on word-classification predicts olfactory abilities and impairment
264		c 2023-03-11
264	1	b Springer Nature,c 2023
338		a print2 rdacarrier
520		a Parosmia is an olfactory disorder that involves distortions of specific odors that may co-occur with anosmia, loss of smell of other odors. Little is known about which odors frequently trigger parosmia, and measures of parosmia severity are lacking. Here, we present an approach to understand and diagnose parosmia that is based on semantic properties (e.g., valence) of words describing odor sources (“fish”, “coffee”, etc.). Using a data-driven method based on natural language data, we identified 38 odor descriptors. Descriptors were evenly dispersed across an olfactory-semantic space, which was based on key odor dimensions. Parosmia patients (n = 48) classified the corresponding odors in terms of whether they trigger parosmic or anosmic sensations. We investigated whether these classifications are related to semantic properties of the descriptors. Parosmic sensations were most often reported for words describing unpleasant odors of inedibles that are highly associated to olfaction (e.g., “excrement”). Based on PCA modeling, we derived the Parosmia Severity Index—a measure of parosmia severity that can be determined solely from our non-olfactory behavioral task. This index predicts olfactory-perceptual abilities, self-reported olfactory impairment, and depression. We thus provide a novel approach for investigating parosmia and establishing its severity that does not require odor exposure. Our work may enhance our understanding of how parosmia changes over time and how it is expressed differently across individuals.
650	7	a SAMHÄLLSVETENSKAPx Psykologi0 (SwePub)5012 hsv//swe
650	7	a SOCIAL SCIENCESx Psychology0 (SwePub)5012 hsv//eng
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicin0 (SwePub)3022 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Clinical Medicine0 (SwePub)3022 hsv//eng
653		a olfactory disorder
653		a olfactory semantics
653		a natural-language processing
653		a behavioral categorization
653		a Parosmia severity index
653		a psykologi
653		a Psychology
700	1	a Sekine, Rumi4 aut
700	1	a Overbeck, Clara4 aut
700	1	a Hummel, Thomas4 aut
700	1	a Olofsson, Jonas K.,d 1978-u Stockholms universitet,Perception och psykofysik4 aut0 (Swepub:su)jool8931
710	2	a Stockholms universitetb Perception och psykofysik4 org
773	0	t European Archives of Oto-Rhino-Laryngologyd : Springer Natureg 280:8, s. 3695-3706q 280:8<3695-3706x 0937-4477x 1434-4726
856	4	u https://doi.org/10.1007/s00405-023-07893-2y Fulltext
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-218892
856	4 8	u https://doi.org/10.1007/s00405-023-07893-2

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Av författaren/redakt...: Hörberg, Thomas, ...; Sekine, Rumi; Overbeck, Clara; Hummel, Thomas; Olofsson, Jonas ...

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SAMHÄLLSVETENSKAP: SAMHÄLLSVETENSKA ...; och Psykologi

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin

Artiklar i publikationen: European Archive ...

Av lärosätet: Stockholms universitet

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