SynthesisFrontiers in behavioral neuroscience2022
fNIRS neuroimaging in olfactory research: A systematic literature review.
Synthesis in Frontiers in behavioral neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.
- Wearable Solutions Using Physiological Signals for Stress Monitoring on Individuals with Autism Spectrum Disorder (ASD): A Systematic Literature Review.Sensors (Basel, Switzerland) · 2024Pooled it
- Aroma of Genius Essential Oil Blend Significantly Enhances Cognitive Performance and Brain Metabolism in Healthy Adults.Human psychopharmacology · 2025Trial
- DL-QC-fNIRS: a deep learning tool for automated quality control in functional near-infrared spectroscopy signals.Neurophotonics · 2026Article
- Distinct patterns of cortical activation and functional connectivity in children with high-functioning autism during a verbal fluency task: a comparative fNIRS study.Frontiers in neuroscience · 2026Article
- Olfactory perception and wellbeing across hormonal contraceptive users and menstrual cycle phases.Frontiers in human neuroscience · 2026Article
- Evaluation of human body malodor using functional near-infrared spectroscopy with regions of interest based on functional pathways in the olfactory system.Frontiers in neuroscience · 2026Article
- Altered cortical activation and functional connectivity during fixed phrase verbal fluency in children with autism spectrum disorder.Frontiers in psychiatry · 2026Article
- Altered Prefrontal Dynamic Functional Connectivity in Vascular Dementia During Olfactory Stimulation: An fNIRS Study.Bioengineering (Basel, Switzerland) · 2025Article
- Transformer-based deep learning model for predicting fNIRS short-channel signals.Neurophotonics · 2025Article
- Diagnostic Efficacy of Olfactory Function Test Using Functional Near-Infrared Spectroscopy with Machine Learning in Healthy Adults: A Prospective Diagnostic-Accuracy (Feasibility/Validation) Study in Healthy Adults with Algorithm Development.Diagnostics (Basel, Switzerland) · 2025Article
- Unpleasant odors compared to pleasant ones cause higher cortical activations detectable by fNIRS and observable mostly in females.APL bioengineering · 2025Article
- Near-infrared spectroscopic study of blood flow changes in the dorsolateral prefrontal cortex during pain relief by odor stimulation.Biophysics and physicobiology · 2025Article
- Naturalistic approach to investigate the neural correlates of a laundry cycle with and without fragrance.Biomedical optics express · 2024Article
- fNIRS a novel neuroimaging tool to investigate olfaction, olfactory imagery, and crossmodal interactions: a systematic review.Frontiers in neuroscience · 2024Review
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
There are a number of key features which make olfaction difficult to study; subjective processes of odor detection, discrimination and identification, and individualistic odor hedonic perception and associated odor memories. In this systematic review we explore the role functional near-infrared spectroscopy (fNIRS) has played in understanding olfactory perception in humans. fNIRS is an optical neuroimaging technique able to measure changes in brain hemodynamics and oxygenation related to neural electrical activity. Adhering to PRISMA guidelines, results of this search found that generally the majority of studies involving healthy adult subjects observed increased activity in response to odors. Other population types were also observed, such as infants, individuals with autism, attention deficit hyperactivity disorder (ADHD), post-traumatic stress disorder (PTSD), mild cognitive impairment (MCI) and dysosmia. fNIRS coverage heavily favored the prefrontal cortex, temporal and parietal regions. This review finds that odor induced cortical activation is dependent on multiple factors, such as odorant type, gender and population type. This review also finds that there is room for improvement in areas such as participant diversity, use of wearable fNIRS systems, physiological monitoring and multi-distance channels.
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Registered trials
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