Mapping distributed brain function and networks with diffuse optical tomography

Nature Photonics, Journal Year: 2014, Volume and Issue: 8(6), P. 448 - 454

Published: May 16, 2014

Language: Английский

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Twenty years of functional near-infrared spectroscopy: introduction for the special issue

NeuroImage, Journal Year: 2013, Volume and Issue: 85, P. 1 - 5

Published: Dec. 7, 2013

Language: Английский

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Automaticity of walking: functional significance, mechanisms, measurement and rehabilitation strategies

Frontiers in Human Neuroscience, Journal Year: 2015, Volume and Issue: 9

Published: May 5, 2015

Automaticity is a hallmark feature of walking in adults who are healthy and well-functioning. In the context walking, "automaticity" refers to ability nervous system successfully control typical steady state with minimal use attention-demanding executive resources. Converging lines evidence indicate that deficits disorders characterized part by shift locomotor strategy from automaticity compensatory control. This potentially detrimental performance, as an not optimized for Furthermore, it places excessive demands on limited pool reserves. The result compromised perform basic complex tasks heightened risk adverse mobility outcomes including falls. Strategies rehabilitation well defined, which due both lack systematic research into causes impaired robust neurophysiological assessments gauge automaticity. These gaps knowledge concerning given serious functional implications Therefore, objective this article advance science consolidating identifying regarding: (a) significance automaticity; (b) neurophysiology

Language: Английский

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Centrality of Social Interaction in Human Brain Function

Neuron, Journal Year: 2015, Volume and Issue: 88(1), P. 181 - 193

Published: Oct. 1, 2015

Language: Английский

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Functional Near-Infrared Spectroscopy (fNIRS) for Assessing Cerebral Cortex Function During Human Behavior in Natural/Social Situations: A Concise Review

Organizational Research Methods, Journal Year: 2016, Volume and Issue: 22(1), P. 46 - 68

Published: July 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.

Language: Английский

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fNIRS Optodes’ Location Decider (fOLD): a toolbox for probe arrangement guided by brain regions-of-interest

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: Feb. 14, 2018

The employment of functional near-infrared spectroscopy (fNIRS) as a method brain imaging has increased over the last few years due to its portability, low-cost and robustness subject movement. Experiments with fNIRS are designed in face limited number sources detectors (optodes) be positioned on selected portion(s) scalp. optodes locations represent an expectation assessing cortical regions relevant experiment's hypothesis. However, this translation process remains challenge for experimental design. In present study, we propose approach that automatically decides location from set predefined positions aim maximizing anatomical specificity regions-of-interest. implemented is based photon transport simulations two head atlases. results compiled into publicly available "fNIRS Optodes' Location Decider" (fOLD). This toolbox first-order bring achieved advancements parcellation methods meta-analyses magnetic resonance more precisely guide selection optode experiments.

Language: Английский

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A Review of Psychophysiological Measures to Assess Cognitive States in Real-World Driving

Frontiers in Human Neuroscience, Journal Year: 2019, Volume and Issue: 13

Published: March 19, 2019

As driving functions become increasingly automated, motorists run the risk of becoming cognitively removed from process. Psychophysiological measures may provide added value not captured through behavioral or self-report alone. This paper provides a selective review psychophysiological that can be utilized to assess cognitive states in real-world environments. First, importance within context traffic safety is discussed. Next, most commonly used physiology-based indices are considered as potential candidates relevant for research. These include: electroencephalography and event-related potentials, optical imaging, heart rate variability, blood pressure, skin conductance, electromyography, thermal pupillometry. For each these measures, an overview provided, followed by discussion methods measuring it context. Drawing recent empirical psychophysiology research, relative strengths limitations measure discussed highlight measures' unique value. Challenges recommendations valid reliable quantification lab (less predictable) settings considered. Finally, we discuss better near real-time assessment motorists' applied outside lab. synthesizes literature on in-vehicle advance development effective human-machine interfaces driver support systems.

Language: Английский

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A Review on the Use of Wearable Functional Near‐Infrared Spectroscopy in Naturalistic Environments

Japanese Psychological Research, Journal Year: 2018, Volume and Issue: 60(4), P. 347 - 373

Published: July 19, 2018

Abstract The development of novel miniaturized wireless and wearable functional near‐infrared spectroscopy (fNIRS) devices has paved the way for new brain imaging that could revolutionize cognitive research fields. Over past few decades, several studies have been conducted with conventional fNIRS systems demonstrated suitability this technology a wide variety populations applications, to investigate both healthy diseased brain. However, what makes even more appealing is its capability allow measurements in everyday‐life scenarios are not possible other gold‐standard neuroimaging modalities, such as magnetic resonance imaging. This huge impact on we explore neural bases mechanisms underpinning human functioning. aim review provide an overview naturalistic settings field neuroscience. In addition, present challenges associated use unrestrained contexts, discussing solutions will accurate inference activity. Finally, future perspectives neuroscience believe would benefit most from study devices.

Language: Английский

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Functional near-infrared spectroscopy in movement science: a systematic review on cortical activity in postural and walking tasks

Neurophotonics, Journal Year: 2017, Volume and Issue: 4(4), P. 041403 - 041403

Published: Aug. 1, 2017

Safe locomotion is a crucial aspect of human daily living that requires well-functioning motor control processes. The neuromotor activities such as walking relies on the complex interaction subcortical and cortical areas. Technical developments in neuroimaging systems allow quantification activation during execution tasks. Functional near-infrared spectroscopy (fNIRS) seems to be promising tool monitor processes areas freely moving subjects. However, so far, there no established standardized protocol regarding application data processing fNIRS signals limits comparability among studies. Hence, this systematic review aimed summarize current knowledge about studies dealing with or postural Fifty-six articles an initial yield 1420 publications were reviewed information methodology, processing, findings extracted. Based our results, we outline recommendations respect design Future perspectives measuring movement science are discussed.

Language: Английский

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Functional Magnetic Resonance Imaging and Functional Near-Infrared Spectroscopy: Insights from Combined Recording Studies

Frontiers in Human Neuroscience, Journal Year: 2017, Volume and Issue: 11

Published: Aug. 18, 2017

Although blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) is a widely available, non-invasive technique that offers excellent spatial resolution, it remains limited by practical constraints imposed the scanner environment. More recently, near infrared spectroscopy (fNIRS) has emerged as an alternative hemodynamic-based approach possesses number of strengths where fMRI limited, most notably in portability and higher tolerance for motion. To date, fNIRS shown promise its ability to shed light on functioning human brain populations contexts previously inaccessible fMRI. Notable contributions include infant neuroimaging studies examining full-body behaviours, such exercise. However, much like fMRI, technical have application clinical settings, including lower resolution depth recording. Thus, combining way two methods complement each other, multimodal may allow more complex research paradigms than feasible with either alone. In these issues, purpose current review 1) provide overview their associated limitations, 2) existing combined fMRI-fNIRS recording studies, 3) discuss how use future practices aid advancing modern investigations function.

Language: Английский

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