Results 41 to 50 of about 18,210 (219)

Event-related functional near-infrared spectroscopy (fNIRS): Are the measurements reliable?

open access: yesNeuroImage, 2006
The purpose of the present study was to investigate the retest reliability of event-related functional near-infrared spectroscopy (fNIRS). Therefore, isolated functional activation was evoked in the occipital cortex by a periodic checkerboard stimulation.
M M, Plichta   +6 more
openaire   +2 more sources

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
Rachael J. Lawrence   +4 more
openaire   +4 more sources

Functional Near-Infrared Spectroscopy (fNIRS): Principles and Neuroscientific Applications

open access: yes, 2012
fNIRS is a device designed to detect changes in the concentration of oxygenated (oxyHb) and deoxygenated (deoxyHb) haemoglobin molecules in the blood, a method commonly used to assess cerebral activity. Over the last decade, functional near-infrared spectroscopy (fNIRS) has widely extended its applications due to its capacity to quantify oxygenation in
León-Carrión, José   +1 more
openaire   +4 more sources

Disentangling the effects of near-infrared light stimulation and exercise on cognitive function in fNIRS studies

open access: yesNeuroImage
Functional near-infrared spectroscopy (fNIRS) studies often aim to measure changes in the brain's hemodynamic response in relation to a specific intervention.
Matteo Martini, Natalia Arias
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

False positives and false negatives in functional near-infrared spectroscopy: issues, challenges, and the way forward [PDF]

open access: yes, 2016
We highlight a significant problem that needs to be considered and addressed when performing functional near-infrared spectroscopy (fNIRS) studies, namely the possibility of inadvertently measuring fNIRS hemodynamic responses that are not due to ...
Scholkmann, F, Tachtsidis, I
core   +1 more source

How Stress Affects Functional Near-Infrared Spectroscopy (fNIRS) Measurements of Mental Workload [PDF]

open access: yesExtended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems, 2018
Recent work has demonstrated that functional Near-Infrared Spectroscopy has the potential to measure changes in Mental Workload with increasing ecological validity. It is not clear, however, whether these measurements are affected by anxiety and stress of the workload, where our informal observations see some participants enjoying the workload and ...
Alsuraykh, Norah H.   +4 more
openaire   +1 more source

Neural correlates of spontaneous deception: A functional near-infrared spectroscopy (fNIRS)study [PDF]

open access: yesNeuropsychologia, 2013
Deception is commonly seen in everyday social interactions. However, most of the knowledge about the underlying neural mechanism of deception comes from studies where participants were instructed when and how to lie. To study spontaneous deception, we designed a guessing game modeled after Greene and Paxton (2009) "Proceedings of the National Academy ...
Xiao Pan, Ding   +3 more
openaire   +2 more sources

Cortical haemodynamic response measured by functional near infrared spectroscopy during a verbal fluency task in patients with major depression and borderline personality disorder

open access: yesEBioMedicine, 2020
Background: Functional near infrared spectroscopy (fNIRS) provides a direct and quantitative assessment of cortical haemodynamic function during a cognitive task.
Syeda F. Husain   +9 more
doaj   +1 more source

fNIRS response during walking — Artefact or cortical activity? A systematic review [PDF]

open access: yes, 2017
This systematic review aims to (i) evaluate functional near infrared spectroscopy (fNIRS) walking study design in young adults, older adults and people with Parkinson’s disease (PD); (ii) examine signal processing techniques to reduce artefacts and ...
Alcock, Lisa   +4 more
core   +1 more source

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