The Role of the Frontal Lobe in Complex Walking Among Patients With Parkinson’s Disease and Healthy Older Adults DOI Open Access
Inbal Maidan, Freek Nieuwhof,

Hagar Bernad‐Elazari

и другие.

Neurorehabilitation and neural repair, Год журнала: 2016, Номер 30(10), С. 963 - 971

Опубликована: Май 25, 2016

Background. Gait is influenced by higher order cognitive and cortical control mechanisms. Functional near infrared spectroscopy (fNIRS) has been used to examine frontal activation during walking in healthy older adults, reporting increased oxygenated hemoglobin (HbO2) levels dual task (DT), compared with usual walking. Objective. To investigate the role of lobe DT obstacle negotiation, adults patients Parkinson’s disease (PD). Methods. Thirty-eight (mean age 70.4 ± 0.9 years) 68 PD 71.7 1.1 years,) performed 3 tasks: ( a) walking, b) c) obstacles fNIRS accelerometers. Linear-mix models were detect changes between groups within tasks. Results. Patients had P < .030). During DT, HbO2 only .001). = .001) tended increase .053). Higher cost .003) worse performance observed Conclusions. A different pattern was groups. The suggests that prefrontal cortex plays an important already simple However, relative baseline negotiation not demonstrates depends on nature task. These findings may have implications for rehabilitation gait PD.

Язык: Английский

The NIRS Brain AnalyzIR Toolbox DOI Creative Commons
Hendrik Santosa, Xuetong Zhai, Frank A. Fishburn

и другие.

Algorithms, Год журнала: 2018, Номер 11(5), С. 73 - 73

Опубликована: Май 16, 2018

Functional near-infrared spectroscopy (fNIRS) is a noninvasive neuroimaging technique that uses low-levels of light (650–900 nm) to measure changes in cerebral blood volume and oxygenation. Over the last several decades, this has been utilized growing number functional resting-state brain studies. The lower operation cost, portability, versatility method make it an alternative methods such as magnetic resonance imaging for studies pediatric special populations without confining limitations supine motionless acquisition setup. However, analysis fNIRS data poses challenges stemming from unique physics technique, statistical properties data, diversity non-traditional experimental designs being due flexibility technology. For these reasons, specific technology must be developed. In paper, we introduce NIRS Brain AnalyzIR toolbox open-source Matlab-based package management, pre-processing, first- second-level (i.e., single subject group-level) analysis. Here, describe basic architectural format toolbox, which based on object-oriented programming paradigm. We also detail algorithms major components including analysis, probe registration, image reconstruction, region-of-interest statistics.

Язык: Английский

Процитировано

375
An Efficient Algorithm for Automatic Peak Detection in Noisy Periodic and Quasi-Periodic Signals DOI Creative Commons
Felix Scholkmann, J. M. Boss, Martin Wolf

и другие.

Algorithms, Год журнала: 2012, Номер 5(4), С. 588 - 603

Опубликована: Ноя. 21, 2012

We present a new method for automatic detection of peaks in noisy periodic and quasi-periodic signals. The method, called multiscale-based peak (AMPD), is based on the calculation analysis local maxima scalogram, matrix comprising scale-dependent occurrences maxima. usefulness proposed shown by applying AMPD algorithm to simulated real-world

Язык: Английский

Процитировано

370
Best practices for fNIRS publications DOI Creative Commons
Meryem A. Yücel, Alexander von Lühmann, Felix Scholkmann

и другие.

Neurophotonics, Год журнала: 2021, Номер 8(01)

Опубликована: Янв. 7, 2021

The application of functional near-infrared spectroscopy (fNIRS) in the neurosciences has been expanding over last 40 years. Today, it is addressing a wide range applications within different populations and utilizes great variety experimental paradigms. With rapid growth diversification research methods, some inconsistencies are appearing way which methods presented, can make interpretation replication studies unnecessarily challenging. Society for Functional Near-Infrared Spectroscopy thus motivated to organize representative (but not exhaustive) group leaders field build consensus on best practices describing utilized fNIRS studies. Our paper designed provide guidelines help enhance reliability, repeatability, traceability reported encourage throughout community. A checklist provided guide authors preparation their manuscripts assist reviewers when evaluating papers.

Язык: Английский

Процитировано

355
Hyperscanning: A Valid Method to Study Neural Inter-brain Underpinnings of Social Interaction DOI Creative Commons
Artur Czeszumski,

Sara Eustergerling,

Anne Lang

и другие.

Frontiers in Human Neuroscience, Год журнала: 2020, Номер 14

Опубликована: Фев. 28, 2020

Social interactions are a crucial part of human life. Understanding the neural underpinnings social is challenging task that hyperscanning method has been trying to tackle over last two decades. Here, we review existing literature and evaluate current state method. We type methods (fMRI, M/EEG, fNIRS) used measure brain activity from more than one participant simultaneously weigh their pros cons for hyperscanning. Further, discuss different types analyses estimate networks synchronization. Lastly, present results studies in context cognitive functions relations interactions. All all, aim comprehensively methods, analyses, 20 years research.

Язык: Английский

Процитировано

341
Functional Near-Infrared Spectroscopy (fNIRS) for Assessing Cerebral Cortex Function During Human Behavior in Natural/Social Situations: A Concise Review DOI
Valentina Quaresima, Marco Ferrari

Organizational Research Methods, Год журнала: 2016, Номер 22(1), С. 46 - 68

Опубликована: Июль 18, 2016

Upon adequate stimulation, real-time maps of cortical hemodynamic responses can be obtained by functional near-infrared spectroscopy (fNIRS), which noninvasively measures changes in oxygenated and deoxygenated hemoglobin after positioning multiple sources detectors over the human scalp. This review is aimed at giving a concise simple overview basic principles fNIRS including features, strengths, advantages, limitations, utility for evaluating behavior. The transportable/wireless commercially available systems have time resolution 1 to 10 Hz, depth sensitivity about 1.5 cm, spatial up cm. has been found suitable many applications on beings, either adults or infants/children, field social sciences, neuroimaging research, medicine. Some examples present future prospects assessing cerebral cortex function during behavior different situations (in natural situations) will provided. Moreover, most recent studies investigating interpersonal interactions adopting hyperscanning approach, consists measurement brain activity simultaneously two more people, reported.

Язык: Английский

Процитировано

329
Cerebral blood flow and autoregulation: current measurement techniques and prospects for noninvasive optical methods DOI Open Access
Sergio Fantini, Angelo Sassaroli,

Kristen Tgavalekos

и другие.

Neurophotonics, Год журнала: 2016, Номер 3(3), С. 031411 - 031411

Опубликована: Июнь 21, 2016

Cerebral blood flow (CBF) and cerebral autoregulation (CA) are critically important to maintain proper brain perfusion supply the with necessary oxygen energy substrates. Adequate is required support normal function, achieve successful aging, navigate acute chronic medical conditions. We review general principles of CBF measurements current techniques measure based on direct intravascular measurements, nuclear medicine, X-ray imaging, magnetic resonance ultrasound techniques, thermal diffusion, optical methods. also for arterial pressure as well theoretical experimental methods assessment CA, including recent approaches techniques. The in clinical practice presented. comprehensive description principles, methods, requirements CA highlights potentially role that noninvasive can play neurovascular health. In fact, have ability provide a noninvasive, quantitative, continuous monitor autoregulation.

Язык: Английский

Процитировано

319
Near-Infrared Spectroscopy in Bio-Applications DOI Creative Commons
Krzysztof B. Beć, Justyna Grabska, Christian W. Huck

и другие.

Molecules, Год журнала: 2020, Номер 25(12), С. 2948 - 2948

Опубликована: Июнь 26, 2020

Near-infrared (NIR) spectroscopy occupies a specific spot across the field of bioscience and related disciplines. Its characteristics application potential differs from infrared (IR) or Raman spectroscopy. This vibrational technique elucidates molecular information examined sample by measuring absorption bands resulting overtones combination excitations. Recent decades brought significant progress in instrumentation (e.g., miniaturized spectrometers) spectral analysis methods image processing analysis, quantum chemical calculation NIR spectra), which made notable impact on its applicability. review aims to present as matured technique, yet with great for further advances several directions throughout broadly understood bio-applications. practical value is critically assessed compared competing techniques. Attention given link bio-application fundamental principal features spectra.

Язык: Английский

Процитировано

309
A high efficiency broad-band near-infrared Ca2LuZr2Al3O12:Cr3+ garnet phosphor for blue LED chips DOI
Liangliang Zhang, Sheng Zhang, Zhendong Hao

и другие.

Journal of Materials Chemistry C, Год журнала: 2018, Номер 6(18), С. 4967 - 4976

Опубликована: Янв. 1, 2018

The garnet Ca2LuZr2Al3O12 (CLZA) is a promising broad-band NIR phosphor for blue LED chips when it doped with Cr3+.

Язык: Английский

Процитировано

303
Neuroimaging-aided differential diagnosis of the depressive state DOI
Ryu Takizawa,

Masato Fukuda,

Shingo Kawasaki

и другие.

NeuroImage, Год журнала: 2013, Номер 85, С. 498 - 507

Опубликована: Июнь 10, 2013

Язык: Английский

Процитировано

285
Advanced Photoacoustic Imaging Applications of Near‐Infrared Absorbing Organic Nanoparticles DOI
Yuyan Jiang, Kanyi Pu

Small, Год журнала: 2017, Номер 13(30)

Опубликована: Июнь 8, 2017

Progress of nanotechnology in recent years has stimulated fast development nanoparticles biomedical research. Photoacoustic (PA) imaging as an emerging non‐invasive technique molecular improved depth relative to conventional optical imaging, demonstrating great potential clinical applications. The convergence and PA enabled a broad spectrum new opportunities fundamental biology translation medicine. This review focuses on the advances organic Near‐infrared absorbing are classified discussed according their different applications, which include tumor gastrointestinal sentinel lymph node disease microenvironment real‐time drug imaging. chemistry properties details highlight own merits, challenges perspectives also discussed.

Язык: Английский

Процитировано

263