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 37 for “"Functional near-infrared spectroscopy (fNIRS)"”.
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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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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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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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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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Early neural signatures of cognitive development
… infant neuroimaging methodologies, particularly functional near-infrared spectroscopy (fNIRS) and event-related potential (ERP), promise to provide additional insight into the mechanisms of cognitive development during the first few years of life. More specifically, these technologies promise …
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Cerebral hemodynamic response to faces and emotions in infants at high risk for autism
… face processing is a cognitive deficit common to nearly all individuals with autism spectrum disorder, and this deficit is likely present from a very early age. The primary goal of this dissertation is therefore to characterize the specific neural response of face processing in infants with …
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Assessment of Mental Workload by EEG+fNIRS
… We studied the capability of a Hybrid functional neuroimaging technique to quantify human MWL. We have used electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) as the imaging modalities with seventeen healthy subjects performing the letter n-back task, a …
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Say cheese! Brain imaging of texture perception
… technical challenges when analysed using functional magnetic resonance imaging (fMRI) and functional near-infrared spectroscopy (fNIRS). Thus, the work described within this thesis aimed to develop experimental procedures and implement advanced denoising and analysis techniques to make …
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Investigations into Brain-Computer Interfacing for Stroke Rehabilitation
… BCIs which use electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) to measure brain activity are the focus of these efforts. EEG and fNIRS are relatively inexpensive, easy-to-use and portable brain measurement/ imaging systems compared to other brain imaging methods …
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The Impact of Threat on Behavioral and Neural Markers of Learning in Anxiety
… the magnitude of neural activation (measured by functional near-infrared spectroscopy; FNIRS) across dissociable regions of the left and right dlPFC would be associated with model parameters, and that threat would further increase the magnitude of activation to model parameters. Finally, it was …
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Assessing functional connectivity in the newborn brain using fNIRS
Functional connectivity represents a powerful approach to describe the intrinsic activity of the brain. It reveals the organization and correlations among anatomically separated regions supporting similar cognitive and sensory processes. Using functional Magnetic Resonance Imaging (fMRI), the …
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