Special Section Guest Editorial: Thirty Years of Functional Near-Infrared Spectroscopy

Neurophotonics, Год журнала: 2023, Номер 10(02)

Опубликована: Июль 6, 2023

Functional Near-Infrared Spectroscopy (fNIRS) is a non-invasive optical technique that measures cerebral hemodynamics across multiple regions of interest, and thereby characterises brain functional activation. Since its first description in 1993, fNIRS has undergone substantial developments hardware, analysis techniques, applications. Thirty years later, this significantly enchancing our understanding diverse areas neuroscience research such as neurodevelopment, cognitive neuroscience, psychiatric disorders, neurodegenerative conditions, injury management intensive care settings. This special issue outlines the latest progress instrumentation techniques showcases some applications within expanding field over past decade.

Язык: Английский

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Shedding light on functional near-infrared spectroscopy and open science practices

Neurophotonics, Год журнала: 2023, Номер 10(02)

Опубликована: Апрель 17, 2023

Open science practices work to increase methodological rigor, transparency, and replicability of published findings. We aim reflect on what the functional near-infrared spectroscopy (fNIRS) community has done promote open in fNIRS research set goals accomplish over next 10 years.

Язык: Английский

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Cognitive training based on functional near-infrared spectroscopy neurofeedback for the elderly with mild cognitive impairment: a preliminary study

Frontiers in Aging Neuroscience, Год журнала: 2023, Номер 15

Опубликована: Июль 26, 2023

Mild cognitive impairment (MCI) is often described as an intermediate stage of the normal decline associated with aging and dementia. There a growing interest in various non-pharmacological interventions for MCI to delay onset inhibit progressive deterioration daily life functions. Previous studies suggest that training (CT) contributes restoration working memory brain-computer-interface technique can be applied elicit more effective treatment response. However, these techniques have certain limitations. Thus, this preliminary study, we neurofeedback paradigm during CT increase function patients MCI.Near-infrared spectroscopy (NIRS) was used provide by measuring changes oxygenated hemoglobin prefrontal cortex. Thirteen elderly who received CT-neurofeedback sessions four times on left dorsolateral cortex (dlPFC) once week were recruited participants.Compared pre-intervention, activity targeted brain region increased when participants first engaged training; after 4 weeks training, oxygen saturation significantly decreased dlPFC. The demonstrated improved compared pre-intervention correlated performance.Our results applications evaluating brain-computer interfaces aid elucidation subjective mental workload may create additional or task workloads due CT.

Язык: Английский

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Successful modulation of temporoparietal junction activity and stimulus-driven attention by fNIRS-based neurofeedback—A randomized controlled proof-of-concept study

Imaging Neuroscience, Год журнала: 2023, Номер 1, С. 1 - 26

Опубликована: Авг. 18, 2023

Abstract The right temporoparietal junction (rTPJ) is a core hub in neural networks associated with reorienting of attention and social cognition. However, it remains unknown whether participants can learn to actively modulate their rTPJ activity via neurofeedback. Here, we explored the feasibility functional near-infrared spectroscopy (fNIRS)-based neurofeedback modulating its effect on functions such as visual perspective taking. In bidirectional regulation control group design, 50 healthy were reinforced either up- or downregulate activation over 4 days training. Both groups showed an increase from beginning training but only upregulation maintained this effect, while downregulation decline initial activation. This suggests learning exclusively, making challenging draw definitive conclusions about effectiveness observed group-specific effects behavioral level. We found significant x time interaction performance task changes, decreased reaction times (RTs) increased RTs across all conditions after Those low baseline greater improvements. perspective-taking task, however, that non-group-specific. These findings demonstrate fNIRS-based feasible method preliminary evidence neurophysiologically specific effects, thus paving way for future applications non-invasive modulation neuropsychiatric disorders.

Язык: Английский

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From Lab to Life: Challenges and Perspectives of fNIRS for Hemodynamic Neurofeedback in Real-World Environments

Опубликована: Ноя. 17, 2023

Neurofeedback allows individuals to monitor and self-regulate their brain activity, potentially improving human function. Beyond the traditional electrophysiological approach using primarily electroencephalography, haemodynamics measured with functional magnetic resonance imaging (fMRI) more recently, near-infrared spectroscopy (fNIRS) have been used (haemodynamic-based neurofeedback), particularly improve spatial specificity of neurofeedback. Over recent years, especially fNIRS has attracted great attention because it offers several advantages over fMRI such as increased user accessibility, cost-effectiveness mobility—the latter being most distinct feature fNIRS. The next logical step would be transfer haemodynamic-based neurofeedback protocols that already proven validated by mobile However, this undertaking is not always easy, since novices may miss important fNIRS-specific methodological challenges. This review aimed at researchers from different fields who seek exploit unique capabilities for It carefully addresses challenges suggestions possible solutions. If raised are addressed further developed, could emerge a useful technique its own application potential—the targeted training activity in real-world environments, thereby significantly expanding scope scalability applications.

Язык: Английский

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Effects of home-based EEG neurofeedback training as a non-pharmacological intervention for Parkinson's disease

Neurophysiologie Clinique, Год журнала: 2024, Номер 54(5), С. 102997 - 102997

Опубликована: Июль 10, 2024

Aberrant movement-related cortical activity has been linked to impaired motor function in Parkinson's disease (PD). Dopaminergic drug treatment can restore these, but dosages and long-term are limited by adverse side-effects. Effective non-pharmacological treatments could help reduce reliance on drugs. This experiment reports the first study of home-based electroencephalographic (EEG) neurofeedback training as a candidate for PD. Our primary aim was test feasibility our EEG intervention home setting. Sixteen people with PD received six visits comprising symptomology self-reports, standardised assessment, precision handgrip force production task while recorded (visits 1, 2 6); 3 × 1-hr sessions supress mu rhythm before initiating movements 5). Participants successfully learned self-regulate activity, this appeared expedite initiation (i.e., time reach target off-medication pre-intervention = 628 ms, post-intervention 564 ms). There no evidence wider reduction (e.g., Movement Disorder Society Unified Disease Rating Scale Part III Motor Examination, 29.00, post 30.07). Interviews indicated that well-received. Based significant effect positive qualitative from participants, suggestive benefit movement initiation, we conclude is feasible promising warrants further research.

Язык: Английский

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Open Research: Examples of good practice, and resources across disciplines

Опубликована: Дек. 15, 2020

Open research is best described as “an umbrella term used to refer the concepts of openness, transparency, rigor, reproducibility, replicability, and accumulation knowledge” (Crüwell et al., 2019, p. 3). Although a lot open practices have commonly been discussed under “open science”, applies all disciplines. If concept new you, it might be difficult for you determine how can apply your research. The aim this document provide resources examples that are relevant discipline. lists case studies per discipline, discipline (organised as: general, methods, data, output education). Note updated annually each Autumn (last update 25th November 2024). also from October 2022 in were made available webpages here: https://www.ukrn.org/disciplines/

Язык: Английский

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Mobile fNIRS for exploring inter-brain synchrony across generations and time

Опубликована: Июль 18, 2023

While still relatively rare, longitudinal hyperscanning studies are exceptionally valuable for documenting changes in inter-brain synchrony, which may turn underpin how behaviors develop and evolve social settings. The generalizability ecological validity of this experimental approach hinges on the selected imaging technique being mobile–a requirement met by functional near-infrared spectroscopy (fNIRS). fNIRS has most frequently been used to examine development synchrony behavior child-parent dyads. We propose that dedicating attention intergenerational stands benefit fields cognitive neuroscience more broadly. This is particularly relevant understanding neural mechanisms underpinning dynamics, potentially benchmarking progress psychological interventions, many situated contexts. In position paper, we highlight areas research stand be enhanced with mobile devices, describe challenges arise from measuring across generations real world, offer potential solutions.

Язык: Английский

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Optimizing real-time fNIRS in BCI and neurofeedback: A comprehensive overview of strategies to improve reliability, spatial specificity, and signal quality

Опубликована: Сен. 14, 2023

The optical brain imaging method functional near-infrared spectroscopy (fNIRS) is a promising tool for real-time applications such as neurofeedback and brain-computer interfaces. Its combination of spatial specificity mobility makes it particularly attractive clinical use, both at the bedside in patients’ homes. Despite these advantages, optimizing fNIRS use requires careful attention to two key aspects: ensuring good maintaining high signal quality. While detects superficial cortical regions, consistently reliably targeting specific regions interest can be challenging, studies that require repeated measurements. Variations cap placement coupled with limited anatomical information may further reduce this accuracy. Furthermore, important tomaintain quality contexts ensure they reflect true underlying activity. However, signals are susceptible contamination by cerebral extracerebral systemic noise well motion artifacts. Insuffcient preprocessing therefore cause system run on instead aim review article help advance progress fNIRS-based applications. It highlights potential challenges improving quality, discusses possible options overcome challenges, addresses considerations relevant By addressing topics, aims improve planning execution future studies, thereby increasing their reliability repeatability.

Язык: Английский

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Shedding light on motor-independent communication

Опубликована: Янв. 1, 2024

Язык: Английский

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