Results 241 to 250 of about 30,789 (276)

Hemodynamic signals in fNIRS

2016
Near-infrared spectroscopy (NIRS) was originally designed for clinical monitoring of tissue oxygenation, and it has also been developed into a useful tool in neuroimaging studies, with the so-called functional NIRS (fNIRS). With NIRS, cerebral activation is detected by measuring the cerebral hemoglobin (Hb), where however, the precise correlation ...
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Is EEG causal to fNIRs?

2016 IEEE International Conference on Bioinformatics and Biomedicine (BIBM), 2016
Causality analysis of simultaneous measurements of the brain's electrical activity and its hemodynamic activity provides the opportunity to study the neural underpinning of hemodynamic fluctuations. This multimodal analysis can also be used to extract valuable information regarding the location of the generators of various electrical events such as ...
Borzou Alipourfard, Jean X. Gao, Olajide Babawale, null Hanli Liu   +3 more
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Assessment of mental workload by EEG+FNIRS

2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2016
We investigated the use of a multimodal functional neuroimaging system in quantifying mental workload of healthy human volunteers. We recorded behavioral performance measures as well as electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) simultaneously from subjects performing n-back tasks. The EEG and fNIRS signals were used
Haleh, Aghajani, Ahmet, Omurtag
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Mental stress grading based on fNIRS signals

2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2016
In this study, we propose functional near infrared spectroscopy (fNIRS) to objectively grade different levels of mental stress. The levels of stress were set based on the difficulty of arithmetic task, time pressure and negative feedback about peer performance. We examined the proposed approach on twelve human subjects using the Montreal Imaging Stress
Fares, Al-Shargie, , Tong Boon Tang, Masashi, Kiguchi   +2 more
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Cognitive Performance Assessment Using fNIR

Archives of Physical Medicine and Rehabilitation, 2019
First, the present study investigated the relationship between cognitive demand and two performance measures that measure outcome and response time. Second, it investigated the utility of functional Near InfraRed Spectroscopy (fNIR) a brain imaging device to measure the hemodynamic response in the prefrontal cortex during the performance measures as a ...
Demetriou, Fotini, Savva, Orestis, Constantinidou, Fofi, Demetriou, Fotini, Savva, Orestis, Constantinidou, Fofi   +5 more
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A Wearable Wireless fNIRS System

Proceedings of the 2018 8th International Conference on Bioscience, Biochemistry and Bioinformatics, 2018
Neurovascular coupling mechanisms in functional brain activity has always been important areas of brain science. Functional near-infrared spectroscopy (fNIRS) has been utilized in the recent decades for examining functional brain activity by measuring the changes in the concentrations of oxygenated and deoxygenated hemoglobin.
Yu Zhang, Xiong Zhang, Han Sun, Xuefei Zhong, Zhaowen Fan   +4 more
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Hemodynamic methods. FMRI and fNIRS

2018
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Willems, R., Cristia, A.
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OFC's reward fnirs experiment

2020
Secondary rewards acquire enhanced incentive motivation via increasing anticipatory activity of the lateral orbitofrontal ...
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EEG/fNIRS

2023
Eleonora Gentile, Antonio Casas Barragán   +1 more
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Motor Imagery Observed by fNIRS

2023 IEEE 19th International Conference on Body Sensor Networks (BSN), 2023
Chi Sang Choy, Zixin Ye, Ziyang Huang, Qifeng Zheng, Qiang Fang, Seedahmed S. Mahmoud, Katrina Neville, Beth Jelfs   +7 more
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