Evidence map›Paper›PMID 33562799›Full record

ArticleBrain sciences2021

Insula and Olfaction: A Literature Review and Case Report.

Frédérique Roy-Côté, Rayane Zahal, Johannes Frasnelli, Dang Khoa Nguyen, Olivier Boucher

Open access · goldAbstract readCase Reports
In one paragraph

Article in Brain sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 27% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
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  6. Let's focus on the insula in addiction: A refined anatomical exploration of insula in severe alcohol and cocaine use disorders.European psychiatry : the journal of the Association of European Psychiatrists · 2024
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  8. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Frédérique Roy-CôtéDépartement de Psychologie, Université de Montréal, Montréal, QC H3C 3J7, Canada.ORCID 0000-0001-8365-9801
Rayane ZahalDépartement de Psychologie, Université de Montréal, Montréal, QC H3C 3J7, Canada.
Johannes FrasnelliCentre de Recherche de l'Hôpital du Sacré-Cœur-de-Montréal, Montréal, QC H4J 1C5, Canada.ORCID 0000-0002-8863-3982
Dang Khoa NguyenCentre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, QC H2X 0A9, Canada.
Olivier BoucherDépartement de Psychologie, Université de Montréal, Montréal, QC H3C 3J7, Canada.
Centre Hospitalier de l’Université de Montréal · CAHôpital du Sacré-Cœur de Montréal · CA

Funding

CIHR 148563
6 · The paper itself

Abstract

(1) Background: It is well established that the insula is involved in olfaction, though its specific role in olfactory processing remains uncertain. In this paper, we first review the current literature on the insula and olfaction. Then, we describe the case of a 56-year-old man with a left insular cavernoma that caused olfactory disturbances. (2) Results: Structural neuroimaging studies suggest that insular gray matter volume is related to olfactory function, and functional neuroimaging shows that various types of stimuli lead to either lateralized or bilateral insular activations. Studies using electro-cortical stimulation reveal a specific region of the insular cortex, around the central insular sulcus, that could be related to unpleasant odor processing. Previous cases of insular lesions leading to olfactory disturbances suggest that left-sided insular lesions may more frequently lead to olfactory changes. In our patient with a left insular cavernoma, odors that were previously perceived as pleasant started smelling unpleasant and were hard to distinguish. Despite these subjective complaints, olfactory function assessed with the Sniffin' Sticks test was normal. (3) Conclusions: Current tests may not be sensitive to all types of olfactory impairments associated with insular damage, and further studies should be conducted to develop olfactory tests assessing the hedonic appreciation of odors.

Indexed as

cavernous angiomainsulalesionolfactionreviewSniffin’ Sticks

Identifiers

PMID33562799
PMCPMC7914678
OpenAlexW3126984799

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.