ArticleIEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society2020
Effects of Processing Methods on fNIRS Signals Assessed During Active Walking Tasks in Older Adults.
Article in IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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Who cites it
34 citing papers in PubMed, 57 citations in OpenAlex.
- Effect of Mindfulness Intervention on Cognition and Emotion in Table Tennis College Athletes: A Randomized Controlled Trial.American journal of men's healthTrial
- DL-QC-fNIRS: a deep learning tool for automated quality control in functional near-infrared spectroscopy signals.Neurophotonics · 2026Article
- Comparison of practice-related changes in dual task walking performance and neural efficiency between older adults with progressive and relapsing-remitting multiple sclerosis.Multiple sclerosis and related disorders · 2025Article
- Antidepressant Treatment Response Prediction With Early Assessment of Functional Near-Infrared Spectroscopy and Micro-RNA.IEEE journal of translational engineering in health and medicine · 2025Article
- Intermittent theta burst stimulation enhances prefrontal activation and connectivity: evidence from fNIRS.Frontiers in human neuroscience · 2025Article
- Functional Near-Infrared Spectroscopy Analysis of the Cognitive Functions of Elderly Patients With Hearing Loss.Journal of audiology & otology · 2025Article
- Evaluation of Neural, Systemic and Extracerebral Activations During Active Walking Tasks in Older Adults Using fNIRS.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2025Article
- Disability Moderates Dual Task Walking Performance and Neural Efficiency in Older Adults With Multiple Sclerosis.Neurorehabilitation and neural repair · 2024Article
- Brain hemodynamic responses and fall prediction in older adults with multiple sclerosis.Multiple sclerosis (Houndmills, Basingstoke, England) · 2024Article
- Brain control of dual-task walking can be improved in aging and neurological disease.GeroScience · 2024Article
- Frontal and parietal cortices activation during walking is repeatable in older adults based on fNIRS.Heliyon · 2024Article
- The impact of music making on neural efficiency & dual-task walking performance in healthy older adults.Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition · 2024Article
- Cortical thickness moderates intraindividual variability in prefrontal cortex activation patterns of older adults during walking.Journal of the International Neuropsychological Society : JINS · 2024Article
- Prefrontal cortex hemodynamic activity during a test of lower extremity functional muscle strength in children with cerebral palsy: A functional near-infrared spectroscopy study.The European journal of neuroscience · 2024Article
- Driving risk cognition of passengers in highly automated driving based on the prefrontal cortex activity via fNIRS.Scientific reports · 2023Article
- The prefrontal cortex hemodynamic responses to dual-task paradigms in older adults: A systematic review and meta-analysis.Heliyon · 2023Review
- Estimation of Respiratory Rate during Biking with a Single Sensor Functional Near-Infrared Spectroscopy (fNIRS) System.Sensors (Basel, Switzerland) · 2023Article
- Asthma history influences gait performance and associated prefrontal cortex activation patterns in older adults.Aging clinical and experimental research · 2023Article
- Deep Learning Based Walking Tasks Classification in Older Adults Using fNIRS.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2023Article
- Estimation of Respiratory Rate from Functional Near-Infrared Spectroscopy (fNIRS): A New Perspective on Respiratory Interference.Biosensors · 2022Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Functional near infrared spectroscopy (fNIRS) is a noninvasive optics-based neuroimaging modality successfully applied to real-life settings. The technology uses light in the near infrared range (650-950nm) to track changes in oxygenated (HbO2) and deoxygenated hemoglobin (Hb) obtained from measured light intensity using light-tissue interaction principles. fNIRS data processing involves artifact removal and hemodynamic signal conversion using modified Beer-Lambert law (MBLL) to obtain Hb and HbO2, reliably. fNIRS signals can get contaminated by various noise sources of physiological and non-physiological origins. Various algorithms have been proposed for the elimination of artifacts from frequency selective filters to blind source separation methods. Hemodynamic signal extraction using raw intensity measurements at multiple wavelengths based on MBLL usually involves apriori knowledge of certain conversion parameters such as molar extinction coefficients ( ε ) and differential path length factor (DPF). Different sets of conversion parameters dependent upon wavelength, chromophores, and age have been reported. Variation in processing algorithms and parameters can cause differences in Hb and HbO2 extraction which can in turn change study outcomes. Using fNIRS, we have previously shown significant increases in oxygenation in the prefrontal cortex from Single-Task-Walking (STW) to Dual-task-Walking (DTW) conditions in older adults due to greater cognitive demands inherent in the latter condition. In the current study, we re-analyzed our data and determined that although using different conversion parameters i.e. ε and age dependent DPF and filter cut-off frequencies at 0.14 and 0.08Hz including those designed to remove confounding effects of Mayer waves had caused some linear increases or decreases on the extracted Hb and HbO2 signals, those effects were minimal in task related comparisons and hence, the overall study outcomes.
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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 OpenQuestion graph.