Utilization of functional near infrared spectroscopy for non-invasive evaluation

Halim, Abdul; Laili, M. H.; Aziz, N. Ahmad; Laili, A. R.; Salikin, M. S.; Rusop, M.

doi:10.1063/1.4948830

Cited by 1 publication

(1 citation statement)

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“…In recent years, functional near-infrared spectroscopy (fNIRS), a brain imaging technique, has been increasingly used in various DTW studies. fNIRS utilizes the principle that oxygen and hemoglobin (HbO) and reduced hemoglobin (HbR) in cortical blood differ in their absorption of light in the near-infrared band, allowing differences in hemoglobin changes in cortical blood flow to be detected (León-Carrión and León-Domínguez, 2012 ; Halim et al, 2016 ; Wang et al, 2020 ). Compared with traditional imaging techniques, fNIRS is insensitive to motion artifacts while ensuring spatial and temporal resolution.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Brain Function in Patients With Cognitive Impairment Based on fNIRS and Gait Analysis

Wang

Ren²,

Li³

et al. 2022

Front. Aging Neurosci.

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BackgroundEarly detection of mild cognitive impairment is crucial in the prevention of Alzheimer’s disease (AD). This study aims to explore the changes in gait and brain co-functional connectivity between cognitively healthy and cognitively impaired groups under dual-task walking through the functional near-infrared spectroscopy (fNIRS) and gait analysis devices.MethodThis study used fNIRS device and gait analysis devices to collect the data of 54 older adults. According to the Mini-mental State Examination (MMSE) and the Montreal Cognitive Assessment (MoCA) scales, the older adults were cognitively healthy (control group) and cognitively impaired (experimental group), of which 38 were in the control group and 16 were in the experimental group. The experiment was divided into a total of three sets of task experiments: a walking-only experiment, a dual-task walking-easy (DTW-easy) experiment, and a dual-task walking-difficult (DTW-difficult) experiment.Main ResultFor the cognitively impaired and cognitively healthy populations, there were no significant differences in overall functional connectivity, region of interest (ROI) connection strength, and gait performance during single-task walking between the two groups.Whereas the performances of DTW differed significantly from the single-task walking in terms of between-group variability of functional connectivity strength change values, and ROI connection strength change values in relation to the dual-task cost of gait. Finally, the cognitively impaired group was significantly more affected by DTW-difficult tasks than the cognitively healthy group.ConclusionThis study provides a new approach to assist in the diagnosis of people with cognitive impairment and provides a new research pathway for the identification of cognitive impairment.

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Section: Introductionmentioning

confidence: 99%