SynthesisFrontiers in psychology2022
Olfaction and Executive Cognitive Performance: A Systematic Review.
Synthesis in Frontiers in psychology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
25 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.
- A cognitive nose? Evaluating working memory benchmarks in the olfactory domain.Chemical senses · 2025Pooled it
- A new framework for the labeling of odors in the Sniffin' Sticks odor identification test: relevance of familiarity and test-retest assessment.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026Article
- A sensorimotor function construct to assess mild cognitive impairment risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Article
- Human olfactory sensitivity varies across geographical locations.Scientific reports · 2026Article
- Post-COVID cognitive dysfunction in socioeconomically-vulnerable older adults: findings from a Brazilian cohort.Arquivos de neuro-psiquiatria · 2026Article
- The evolution of phonemic verbal fluency test: bridging tradition with contemporary insights.Frontiers in psychology · 2026Review
- Analysis of Event-related Potential Dynamics Reveals Lavender Aroma Modulates Cognitive Flexibility: An Electroencephalography Investigation Based on Task Switching Paradigms.Journal of medical signals and sensors · 2026Article
- Olfactory identification impairment in cerebral small-vessel disease indicates cognitive network disconnection and predicts accelerated cognitive decline.Journal of neurology · 2025Article
- Olfactory Testing and Gray Matter Volume: A Combined Approach to Predict the Conversion to Alzheimer.Brain sciences · 2025Article
- Free odor identification engages domain-general cognitive abilities in old adults.Chemical senses · 2025Article
- Aging-associated sensory decline and Alzheimer's disease.Molecular neurodegeneration · 2024Review
- Olfactory Identification as a Biomarker for Cognitive Impairment: Insights from Healthy Aging, Subjective Cognitive Decline, and Mild Cognitive Impairment.European journal of investigation in health, psychology and education · 2024Article
- Article
- Pregnant women exhibit decreased trigeminal sensitivity.Brain and behavior · 2024Article
- Development and validation of the MultiScent-20 digital odour identification test using item response theory.Scientific reports · 2024Article
- Associations between olfactory dysfunction and cognition: a scoping review.Journal of neurology · 2024Article
- Inflammation and olfactory loss are associated with at least 139 medical conditions.Frontiers in molecular neuroscience · 2024Article
- Post-COVID-19 physical and cognitive impairments and associations with quality of life: a cross-sectional study.Frontiers in sports and active living · 2024Article
- Lavender Essential Oil Inhalation Improves Attentional Shifting and Accuracy: Evidence from Dynamic Changes of Cognitive Flexibility and Power Spectral Density of Electroencephalogram Signals.Journal of medical signals and sensors · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective tests of olfaction are widely available to aid in the assessment of olfaction. Their clearest role is in the characterization of olfactory changes, either reported by or suspected in a patient. There is a rapidly growing literature concerned with the association of olfactory changes with certain neuropsychiatric conditions and the use of olfactory testing to supplement conventional assessments in clinical and research practice is evolving. Neural pathways important for olfactory processing overlap extensively with pathways important for cognitive functioning, and especially those important for executive functioning, many of which are concentrated in the frontal lobes. Previous work has identified associations between performance on certain olfactory tests (most frequently olfactory identification) and executive functioning and behavioral measures (e.g. of impulsivity). More recently, similar associations have also been identified in non-clinical samples, raising new questions as to the utility of olfactory test scores as proxy measures for non-olfactory phenomena. In this systemic review, we sought to identify studies, both clinical and non-clinical, that investigated the associations of olfaction with performance on tasks sensitive to frontal lobe functioning. Our search criteria led to the identification of 70 studies published in English. We examined in detail and tabulated the data from these studies, highlighted each study's key findings, and critically evaluated these studies. We use the results of this review to reflect on some of the current and future challenges concerning the use of olfactory testing in clinical neuropsychiatric practice and research and speculate on the potential benefits of administering phonemic fluency in combination with olfactory testing to enhance its predictive value.
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Registered trials
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 Socratic graph.