Results 31 to 40 of about 717,370 (266)
Neurophotonics, 2020 . Significance: Isolating task-evoked brain signals from background physiological noise (e.g., cardiac, respiratory, and blood pressure fluctuations) poses a major challenge for the analysis of functional near-infrared spectroscopy (fNIRS) data. Aim: The
H. Santosa +4 more
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Measures of prefrontal functional near-infrared spectroscopy in visuomotor learning [PDF]
Experimental Brain Research, 2021 AbstractFunctional near-infrared spectroscopy (fNIRS) is a promising technique for non-invasively assessing cortical brain activity during learning. This technique is safe, portable, and, compared to other imaging techniques, relatively robust to head motion, ocular and muscular artifacts and environmental noise.
Angelica M. Tinga +3 more
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Neurophotonics, 2020 . Significance: Functional near-infrared spectroscopy (fNIRS) has become an important research tool in studying human brains. Accurate quantification of brain activities via fNIRS relies upon solving computational models that simulate the transport of ...
Anh Phong Tran, Shijie Yan, Q. Fang
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Dynamic causal modelling for functional near-infrared spectroscopy
NeuroImage, 2015 Functional near-infrared spectroscopy (fNIRS) is an emerging technique for measuring changes in cerebral hemoglobin concentration via optical absorption changes. Although there is great interest in using fNIRS to study brain connectivity, current methods are unable to infer the directionality of neuronal connections.
Tak, S +4 more
openaire +4 more sources
Raman Spectroscopy of Nanostructures and Nanosized Materials [PDF]
Journal of Raman Spectroscopy 38, 6 (2007) 598-603, 2007 The interest of micro and tip-enhanced Raman spectroscopy to analyze nanosized and nanostructured materials, chiefly semiconductors, oxides and pristine or functionalized carbon nanotubes, is reviewed at the light of the contributions to this special issue.
arxiv +1 more source
Asteroid Polarimetric-Phase Behavior in the Near-Infrared: S- and C-Complex Objects [PDF]
arXiv, 2022 We present the first results of our survey of asteroid polarization-phase curves in the near-infrared J and H bands using the WIRC+Pol instrument on the Palomar 200-inch telescope. We confirm through observations of standard stars that WIRC+Pol can reach the 0.1% precision needed for asteroid phase curve characterization, and show that C-complex ...
arxiv
Frontiers in Aging Neuroscience, 2020 Mild cognitive impairment (MCI) is the clinical precursor of Alzheimer's disease (AD), which is considered the most common neurodegenerative disease in the elderly. Some MCI patients tend to remain stable over time and do not evolve to AD.
Dalin Yang +6 more
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Frontiers in Human Neuroscience, 2021 Functional near-infrared spectroscopy (fNIRS) has attracted increasing attention in the field of brain–computer interfaces (BCIs) owing to their advantages such as non-invasiveness, user safety, affordability, and portability.
Jinuk Kwon, C. Im
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Frontiers in Aging Neuroscience, 2020 The integrity of the frontal areas of the brain, specifically the prefrontal cortex, are critical to preserve cognition and mobility in late life. Prefrontal cortex regions are involved in executive functions and gait control and have been related to the
C. Udina +8 more
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Extending the Canada-France brown Dwarfs Survey to the near-infrared: first ultracool brown dwarfs from CFBDSIR [PDF]
, 2010 We present the first results of the ongoing Canada-France Brown Dwarfs Survey-InfraRed, hereafter CFBDSIR, a Near InfraRed extension to the optical wide-field survey CFBDS. Our final objectives are to constrain ultracool atmosphere physics by finding a statistically significant sample of objects cooler than 650K and to explore the ultracool brown dwarf
arxiv +1 more source