ArticleThe world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry2023
Brain regions associated with olfactory dysfunction in first episode psychosis patients.
Article in The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 5 citations in OpenAlex.
- An olfactory-prefrontal cortical circuit supports social recognition.Research square · 2026Article
- Emerging role of the host microbiome in neuropsychiatric disorders: overview and future directions.Molecular psychiatry · 2023Review
- Editorial: Olfactory neuroepithelium-derived cellular models to study neurological and psychiatric disorders.Frontiers in neuroscience · 2023Article
- [Depressive disorders and olfactory dysfunction].Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciencesReview
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Authors and funding
15 authors at 3 institutions in 1 country.
Funding
Abstract
objectivesOlfactory dysfunction is reproducibly reported in psychotic disorders, particularly in association with negative symptoms. The superior frontal gyrus (SFG) has been frequently studied in patients with psychotic disorders, in particular with their associations with negative symptoms. The relationship between olfactory functions and brain structure has been studied in healthy controls (HCs). Nevertheless, the studies with patients with psychotic disorders are limited. Here we report the olfactory-brain relationship in a first episode psychosis (FEP) cohort through both hypothesis-driven (centred on the SFG) and data-driven approaches.
methodsUsing data from 88 HCs and 76 FEP patients, we evaluated the correlation between olfactory functions and structural/resting-state functional magnetic resonance imaging (MRI) data.
resultsWe found a significant correlation between the left SFG volume and odour discrimination in FEP patients, but not in HCs. We also observed a significant correlation between rs-fMRI connectivity involving the left SFG and odour discrimination in FEP patients, but not in HCs. The data-driven approach didn't observe any significant correlations, possibly due to insufficient statistical power.
conclusionThe left SFG may be a promising brain region in the context of olfactory dysfunction and negative symptoms in FEP.
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