Applications of Functional Near-Infrared Spectroscopy (fNIRS) Neuroimaging in Exercise–Cognition Science: A Systematic, Methodology-Focused Review

Journal of Clinical Medicine, Год журнала: 2018, Номер 7(12), С. 466 - 466

Опубликована: Ноя. 22, 2018

For cognitive processes to function well, it is essential that the brain optimally supplied with oxygen and blood. In recent years, evidence has emerged suggesting cerebral oxygenation hemodynamics can be modified physical activity. To better understand relationship between oxygenation/hemodynamics, activity, cognition, application of state-of-the art neuroimaging tools essential. Functional near-infrared spectroscopy (fNIRS) such a tool especially suitable investigate effects activity/exercises on due its capability quantify changes in concentration oxygenated hemoglobin (oxyHb) deoxygenated (deoxyHb) non-invasively human brain. However, currently there no clear standardized procedure regarding application, data processing, analysis fNIRS, large heterogeneity how fNIRS applied field exercise–cognition science. Therefore, this review aims summarize current methodological knowledge about studies measuring cortical hemodynamic responses during testing (i) prior after different activities interventions, (ii) cross-sectional accounting for fitness level their participants. Based methodology 35 as relevant considered publications, we outline recommendations future

Язык: Английский

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Best practices for fNIRS publications

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

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A Systemic Review of Functional Near-Infrared Spectroscopy for Stroke: Current Application and Future Directions

Frontiers in Neurology, Год журнала: 2019, Номер 10

Опубликована: Фев. 5, 2019

Survivors of stroke often experience significant disability and impaired quality life. The recovery motor or cognitive function requires long periods. Neuroimaging could measure changes in the brain monitor process order to offer timely treatment assess effects therapy. A novel neuroimaging noninvasive technique NIRS with its ambulatory, portable, low-cost nature without fixation subjects has attracted extensive attention. We conducted a comprehensive literature review use post-stroke patients. Overall, we reviewed 61 papers. wide range application, including monitoring upper limb, lower limb recovery, learning, cortical cerebral hemodynamic changes, oxygenation, as well therapeutic method, clinical researches evaluation risk for stroke. Among them, shown great potential monitoring, research tool. Further studies give more emphasize on combination other techniques utility prevention

Язык: Английский

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A consensus guide to using functional near-infrared spectroscopy in posture and gait research

Gait & Posture, Год журнала: 2020, Номер 82, С. 254 - 265

Опубликована: Сен. 18, 2020

Язык: Английский

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Automated Processing of fNIRS Data—A Visual Guide to the Pitfalls and Consequences

Algorithms, Год журнала: 2018, Номер 11(5), С. 67 - 67

Опубликована: Май 8, 2018

With the rapid increase in new fNIRS users employing commercial software, there is a concern that many studies are biased by suboptimal processing methods. The purpose of this study to provide visual reference showing effects different methods, help inform researchers setting up and evaluating pipeline. We show significant impact pre- post-processing choices stress again how important it combine data from both hemoglobin species order make accurate inferences about activation site.

Язык: Английский

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A cross-brain neural mechanism for human-to-human verbal communication

Social Cognitive and Affective Neuroscience, Год журнала: 2018, Номер 13(9), С. 907 - 920

Опубликована: Авг. 13, 2018

Neural mechanisms that mediate dynamic social interactions remain understudied despite their evolutionary significance. The interactive brain hypothesis proposes cues are processed by dedicated substrates and provides a general theoretical framework for investigating the underlying neural of interaction. We test specific case this proposing canonical language areas upregulated dynamically coupled across brains during based on talking listening. Functional near-infrared spectroscopy (fNIRS) was employed to acquire simultaneous deoxyhemoglobin (deOxyHb) signals partners who alternated between speaking listening while doing an Object Naming & Description task with without interaction in natural setting. Comparison non-interactive conditions confirmed increase activity associated Wernicke's area including superior temporal gyrus (STG) (P = 0.04). However, not supported Broca's area. Cross-brain coherence determined wavelet analyses originating from STG subcentral greater than non-interaction < 0.01). In support these findings suggest cross-brain mechanism pathways share interpersonal information.

Язык: Английский

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Prefrontal cortical activation measured by fNIRS during walking: effects of age, disease and secondary task

PeerJ, Год журнала: 2019, Номер 7, С. e6833 - e6833

Опубликована: Май 3, 2019

Cognitive processes are required during walking to appropriately respond environmental and task demands. There now many studies that have used functional Near-Infrared Spectroscopy (fNIRS) record brain activation investigate neural bases of cognitive contributions in gait. The aim this systematic review was summarize the published research regarding Prefrontal cortical (PFC) patterns simple complex tasks young adults, older adults clinical groups with balance disorders using fNIRS. Our secondary evaluate each included study based on methodological reporting criteria important for good data quality.We conducted searches June 2018 four databases: Embase, PubMed, Scopus PsycINFO. strategy search was: (((((near infrared spectroscopy) OR near nirs) fnirs) AND (((gait) walking) locomotion) (((((young) adult) older) elderly) NOT children)) (((Brain) cortex) cortical) our search. papers met specific criteria: (i) fNIRS measure PFC patterns; (ii) (simple complex) and; (iii) assessed people, people and/or disorders.Thirty five (describing 75 comparisons) 308 retrieved through inclusion criteria. Based 6 considerations, 20 were high quality, 10 medium quality 5 low quality. Eleven/20 comparisons 23/37 15/18 reported increased complexity. majority verbal fluency, counting backwards or motor increases (83%, 64% 58% these studies, respectively). In contrast, no found visual activation.Increased most common involved walks comprising fluency arithmetic tasks. Clinical generally showed irrespective type performed which suggests require more attentional resources safe walking. Systematic registration number: PROSPERO 2017 - CRD42017059501.

Язык: Английский

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Systemic physiology augmented functional near-infrared spectroscopy: a powerful approach to study the embodied human brain

Neurophotonics, Год журнала: 2022, Номер 9(03)

Опубликована: Июль 11, 2022

In this Outlook paper, we explain why an accurate physiological interpretation of functional near-infrared spectroscopy (fNIRS) neuroimaging signals is facilitated when systemic activity (e.g., cardiorespiratory and autonomic activity) measured simultaneously by employing physiology augmented (SPA-fNIRS). The rationale for SPA-fNIRS twofold: (i) enables a more complete understanding the fNIRS at head since they contain components originating from neurovascular coupling sources. with can be used regressing out confounding in signals. Misinterpretations thus minimized. (ii) to study embodied brain linking state entire body, allowing novel insights into their complex interplay. We envisage approach will become increasingly important future.

Язык: Английский

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Inhibiting responses under the watch of a recently synchronized peer increases self-monitoring: evidence from functional near-infrared spectroscopy

Open Biology, Год журнала: 2024, Номер 14(2)

Опубликована: Фев. 1, 2024

Developing motor synchrony with a peer (through interventions such as the mirror game) can yield collaborative, cognitive and social benefits. However, it is also well established that observation by an audience improve cognition. The combined relative advantages offered synchronization effects are not yet understood. It important to address this gap determine extent which synchronizing activities might interact positive of audience. In preregistered study, we investigate response inhibition may be improved when observed after peer. We compare behavioural cortical (functional near-infrared spectroscopy; fNIRS) measures between synchronized non-synchronized dyads find presence peer-audience introduces speed-accuracy trade-off, consisting slower reaction times accuracy. This co-occurs activation in bilateral inferior frontal middle prefrontal cortices, implicated monitoring maintenance alignment. Our findings have implications for carers support people, who benefit from rehabilitating skills clinical settings.

Язык: Английский

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Optimizing spatial specificity and signal quality in fNIRS: an overview of potential challenges and possible options for improving the reliability of real-time applications

Frontiers in Neuroergonomics, Год журнала: 2024, Номер 5

Опубликована: Июнь 5, 2024

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 maintain quality contexts ensure they reflect true underlying activity. However, signals are susceptible contamination by cerebral extracerebral systemic noise well motion artifacts. Insufficient 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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