Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 50 for “"functional near-infrared spectroscopy"”.
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Machine Learning Methods for functional Near Infrared Spectroscopy
… under the umbrella of human machine interaction. Functional Near Infra-Red Spectroscopy (fNIRS) device is a relatively new device that enables inference of brain activity through non-invasively pulsing infra-red light into the brain. The fNIRS device is particularly useful as it has a better …
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Comparing analytic approaches to infant functional near-infrared spectroscopy data
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Functional near-infrared spectroscopy for Hb and HbO₂ detection using remote sensing
… in this thesis is to develop a wireless, near-infrared (NIR) imaging system to provide flexibility and functionality to clinicians and researchers who require monitoring of blood profusion to tissue, muscles, or the brain. The prototype device uses a single stimulus/detection unit composed …
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Brain activation following constraint-induced movement therapy using functional near infrared spectroscopy in stroke patients
… Schmalbrock, Keller, & Chakeres, 2001). Functional Near-Infrared Spectroscopy (fNIRS) is an novel method of mapping the brain by using light to measure changes in oxygenated and de-oxygenated hemoglobin concentration in cortical tissue (Nishimura, Rapoport, Wubbels, Downs, & Downs, 2010). …
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Functional Near-Infrared Spectroscopy (fNIRS) Based Functional Connectivity Alterations Associated with Delirium in Critically Ill Children: An Exploratory Study
This study evaluated whether functional near-infrared spectroscopy (fNIRS)-derived functional connectivity (FC) could serve as a neurophysiological marker of delirium in critically ill children. We conducted a prospective observational study in a tertiary pediatric intensive care unit (PICU) in …
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The impact of multiliteracies and multimodality on ESL learners: Using Neuroimaging Technologies
… and linguistic diversity. This study used functional near infrared spectroscopy (fNIRS) to investigate the association of multiliteracies learning on adult English Second Language (ESL) students’ performance through multimodal tasks. Students’ multimodality background was collected through …
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Influence of Vibratory Plantar Stimulation on Cortical Motor Planning and Spatiotemporal Step Parameters
… paradigm while PMC activity was recorded using functional near-infrared spectroscopy and lower-limb kinematics via inertial measurement units. Planning significantly increased left PMC activation relative to rest; however, vibration and step type did not modulate this response, and no …
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Quantifying Resting-State Functional Connectivity in Critically Brain-Injured Patients: A Graph-Theoretical Approach with fNIRS
… predict patient outcomes. In the present study, functional near-infrared spectroscopy is employed in conjunction with graph theory and machine learning to quantify resting-state functional connectivity in 16 acutely brain-injured patients and 23 healthy controls. Results revealed significant …
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High-density intraoperative brain monitoring during cardiac surgery.
Functional near-infrared spectroscopy (fNIRS) is a prominent technique that allows assessment of functional brain activity by measuring hemodynamic responses. Most existing functional brain imaging methods are only capable of examining cere-bral oxygenation at the frontal lobes during cardiac …
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Medial Prefrontal Cortex fNIRS Activity while Viewing Nature and Urban Scenes: The Search for Neurological Evidence of Nature's Transcendent Self-Diminishment Effect
… neural processes behind this, this study used functional near-infrared spectroscopy (fNIRS) to measure activity in the medial prefrontal cortex (mPFC) which is related to the self-concept. Participants were shown 12 images divided into four blocks separated by image types. Six were entirely …
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Overcoming Present Bias in Engineering Design and Construction with Future Thinking and Generative AI
… responses and brain activity were recorded. Functional near-infrared spectroscopy (fNIRS) was used to measure cognitive load. To analyze design narrative, qualitative coding and natural language processing (NLP) techniques such as semantic similarity and text network analysis were used. …
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Neuroscience for Engineering Sustainability: Measuring Cognition During Design Ideation and Systems Thinking Among Students in Engineering
… thesis, a nascent neuroimaging technology called functional near-infrared spectroscopy (fNIRS) was used to measure cognition among engineering students thinking about sustainability. fNIRS provides an opportunity to investigate how sustainability in design influences cognition, and how different …
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Surface Based Decoding of Fusiform Face Area Reveals Relationship Between SNR and Accuracy in Support Vector Regression
… lab for predicting subcortical structures using functional magnetic resonance imaging (fMRI) data restricted to the cortical surface. Our goal is to enhance the utility of low cost, portable imaging modalities, such as functional near infrared spectroscopy (fNIRS), which is limited in signal …
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The Effects of Multiple-Intervention Neurofeedback on Engineering Design Ideation
… processing and attention. The study employs functional near-infrared spectroscopy (fNIRS) for neuro-cognitive feedback (NF), showing its advantages in spatial and temporal resolution, mobility, and cost over EEG and fMRI. This feedback method involves placing sensors in a headband on the …
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The Effects of Concept Mapping on Design Neurocognition: An Empirical Study Measuring Changes in the Brain when Defining Design Problems
… problem statements for two design problems. Functional near-infrared spectroscopy (fNIRS) was used to measure changes in oxy-hemoglobin (oxy-Hb) in the prefrontal cortex (PFC) of students while they developed their design problem statements. A lower average oxy-Hb was observed in the group …
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Language processing supporting cognitive performance: an investigation of children’s and adults’ inner speech using behavioral, electrophysiological and optical methods
… applying the electroencephalography and functional near-infrared spectroscopy. The results of the first study confirmed that the internalization of speech is related to children´s cognition although it cannot explain the relation between language skills and problem-solving. The second …
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Investigating the effects of neuromodulatory training on autistic traits: a multi-methods psychophysiological study.
… case of chapter 4, EEG and eye-tracking as well functional near infrared spectroscopy (fNIRS). Overall the findings revealed differences in mu rhythm reactivity associated to AQ traits. In chapter 2, the rEEG showed that individuals with high AQ scores showed less activation of frontal and …
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Does working together increase flow with age?
… measuring recruitment of frontal regions using functional near-infrared spectroscopy (fNIRS). Although no age difference was found in the effect of social condition or difficulty level, older adults reported higher levels of Flow when they were assigned to the paired social condition first, …
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Examining the neurovisceral integration model through fNIRS
… task. Using a series of go/no-go tasks, RSA and functional near-infrared spectroscopy (fNIRS) were collected to investigate the relationship between prefrontal activation and vagal activity at rest and during behavioral inhibition. There are three primary aims of this study. First, examine …
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Affective influences on top-down visual attention
… prefrontal cortex activity was recorded using functional near-infrared spectroscopy. Overall, when considered in isolation, induced emotion had no impact on attention. However, negative emotion did influence prefrontal cortex activation. Moreover, induced emotion was shown to interact with …
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