Results 71 to 80 of about 579,587 (260)

Contribution of speckle noise in near-infrared spectroscopy measurements [PDF]

open access: yes, 2019
Near-infrared spectroscopy (NIRS) is widely used in biomedical optics with applications ranging from basic science, such as in functional neuroimaging, to clinical, as in pulse oximetry.
Boas, David A.   +5 more
core   +1 more source

Age-related changes in global motion coherence: conflicting haemodynamic and perceptual responses [PDF]

open access: yes, 2018
Our aim was to use both behavioural and neuroimaging data to identify indicators of perceptual decline in motion processing. We employed a global motion coherence task and functional Near Infrared Spectroscopy (fNIRS). Healthy adults (n = 72, 18-85) were
A Arena   +93 more
core   +3 more sources

fNIRS for future use in auditory diagnostics

open access: yesCurrent Directions in Biomedical Engineering, 2016
Functional near-infrared spectroscopy (fNIRS) is an emerging technique for the assessment of functional activity of the cerebral cortex. Recently fNIRS was also envisaged as a novel neuroimaging approach for measuring the auditory cortex (AC) activity in
Bauernfeind Günther   +2 more
doaj   +1 more source

Optics Based Label-Free Techniques and Applications in Brain Monitoring

open access: yesApplied Sciences, 2020
Functional near-infrared spectroscopy (fNIRS) has been utilized already around three decades for monitoring the brain, in particular, oxygenation changes in the cerebral cortex.
Priya Karthikeyan   +4 more
doaj   +1 more source

Domain Adaptation for Robust Workload Level Alignment Between Sessions and Subjects using fNIRS [PDF]

open access: yes, 2020
Significance: We demonstrated the potential of using domain adaptation on functional Near-Infrared Spectroscopy (fNIRS) data to classify different levels of n-back tasks that involve working memory. Aim: Domain shift in fNIRS data is a challenge in the workload level alignment across different experiment sessions and subjects.
arxiv   +1 more source

Cortical correlates of speech intelligibility measured using functional near-infrared spectroscopy (fNIRS) [PDF]

open access: yesHearing Research, 2018
Functional neuroimaging has identified that the temporal, frontal and parietal cortex support core aspects of speech processing. An objective measure of speech intelligibility based on cortical activation in these brain regions would be extremely useful to speech communication and hearing device applications. In the current study, we used noise-vocoded
R. Lawrence   +4 more
semanticscholar   +6 more sources

Emotional modulation of visual cortex activity: A functional nearinfrared spectroscopy study [PDF]

open access: yes, 2009
Functional neuroimaging and electroencephalography reveal emotional effects in early visual cortex. Here, we used fNIRS to examine haemodynamic responses evoked by neutral, positive and negative emotional pictures, matched for brightness, contrast, hue,
Gray, Marcus A.   +3 more
core   +2 more sources

A review on functional near-infrared spectroscopy and application in stroke rehabilitation

open access: yesMedicine in Novel Technology and Devices, 2021
Functional near-infrared spectroscopy (fNIRS) has gained great interest as a noninvasive modality to study the changes in cerebral hemodynamics related to brain activity.
Congcong Huo   +6 more
doaj  

System Derived Spatial-Temporal CNN for High-Density fNIRS BCI

open access: yesIEEE Open Journal of Engineering in Medicine and Biology, 2023
An intuitive and generalisable approach to spatial-temporal feature extraction for high-density (HD) functional Near-Infrared Spectroscopy (fNIRS) brain-computer interface (BCI) is proposed, demonstrated here using Frequency-Domain (FD) fNIRS for motor ...
Robin Dale   +4 more
doaj   +1 more source

Measuring visual cortical oxygenation in diabetes using functional near-infrared spectroscopy [PDF]

open access: yes, 2018
Aims: Diabetes mellitus affects about 6% of the world’s population, and the chronic complications of the disease may result in macro- and micro-vascular changes.
Aitchison, Ross T.   +5 more
core   +3 more sources

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