Emerging applications of optical fiber-based devices for brain research

R Nazempour, B Zhang, Z Ye, L Yin, X Lv… - Advanced Fiber …, 2022 - Springer
… of animals and coupled to blue light for delivering optical signals. … enrich our understanding
of brain functions, but also capable to offer methods for neuroglial brain disorder diagnostics (…

Measuring human cerebral blood flow and brain function with fiber-based speckle contrast optical spectroscopy system

B Kim, S Zilpelwar, EJ Sie, F Marsili… - Communications …, 2023 - nature.com
… We performed human brain function … -density optical devices (for tomography measurements)
that can continuously monitor human CBF and brain function with unprecedented signal

Mapping of neural activity patterns using intrinsic optical signals: From isolated brain preparations to the intact human brain

BA MacVicar, TWJ Watson, FE LeBlanc… - … of Brain Function and …, 1993 - Springer
optical signals in three different preparations. This has allowed us to determine the different
mechanisms by which these signals … We therefore determined whether optical techniques …

Simulation study of magnetic resonance imaging–guided cortically constrained diffuse optical tomography of human brain function

DA Boas, AM Dale - Applied optics, 2005 - opg.optica.org
… Anecdotally, we often observe such image artifacts in our optical brain function images when
assuming … signal or blood flow response to brain activation as a statistical spatial prior to the …

Analysis of dynamic brain imaging data

PP Mitra, B Pesaran - Biophysical journal, 1999 - cell.com
brain function, including functional magnetic resonance imaging, intrinsic and extrinsic contrast
optical … dyes lead to changes in the optical fluorescence signal on the order of ΔF/F ∼10 …

Noninvasive measurement of neuronal activity with near-infrared optical imaging

MA Franceschini, DA Boas - Neuroimage, 2004 - Elsevier
… To predict the effect of a focal change of the optical coefficients within the brain cortex on our
… Cleary, without the heart filter we might falsely interpret the optical signal as a fast response …

Fiber optic based multiprobe system for intraoperative monitoring of brain functions

A Mayevsky, ES Flamm, W Pennie… - … and Imaging of …, 1991 - spiedigitallibrary.org
… monitor and record the optical signals during patient operations. The ion measurements were
very noisy and some modifications are needed in order to improve the signal to noise ratio. …

Functional transcranial brain imaging by optical-resolution photoacoustic microscopy

S Hu, K Maslov, V Tsytsarev… - … of biomedical optics, 2009 - spiedigitallibrary.org
… dependence in the photoacoustic signals is expected to be … signals at different optical
wavelengths. However, the wavelength-dependent optical scattering and absorption of brain

Resting-state functional connectivity in the human brain revealed with diffuse optical tomography

BR White, AZ Snyder, AL Cohen, SE Petersen… - Neuroimage, 2009 - Elsevier
… Using a subset of signals that have minimal penetration into the brain, we constructed
measures of each pad's scalp hemodynamics (Fig. 2b). Every channel had the superficial/global …

Recognizing brain activities by functional near-infrared spectroscope signal analysis

TQD Khoa, M Nakagawa - Nonlinear biomedical physics, 2008 - Springer
… in helping to understand brain tasks. In this paper, we present results of fNIRs signal analysis
to … responses which recognize brain tasks toward developing a Brain-Computer interface. …