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 17 of 17 for “"Autonomic activity"”.
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Analyzing autonomic activity in neonatal seizures
… In this thesis, we investigate whether seizure activity is associated with changes in the discharge pattern of the autonomic nervous system, which could be picked up in heart rate (HR) or heart-rate variability (HRV) analysis. More fundamentally, we seek to investigate whether seizures in the …
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The recurrence of autonomic activity after sympathectomy
Thesis (M.D.)--Boston University
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Do Different Music Genres Differentially Affect Autonomic Activity? How Music and Sound Affect Autonomic Activity Aroused by Visual Stimuli
… music would differentially influence measures of autonomic nervous system activity (heart rate, galvanic skin response) while viewing visual stimuli in a sample of college students. All participants listened to the same songs and music genres and viewed the same International Affective Picture …
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Transfer function analysis of autonomic activity during motion sickness
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
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Neuroscience tools in novel contexts: developing thermogenetics in Drosophila and decoding autonomic activity in mouse major pelvic ganglion
… models provide the opportunity to decode neural activity via the ability to precisely stimulate and record neural events associated with quantifiable circuit and behavioral outputs (Bernstein et al., 2012; Boyden et al., 2005; Deisseroth et al., 2006; Roth, 2016). As neuroscientists continue to …
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Modeled and Unmodeled Approaches for Quantification of the Cardiac Autonomic Nervous System
The autonomic nervous system (ANS) is a branch of the nervous system that regulates involuntary functions within the body, such as blood pressure control (the baroreceptor reflex) and arousal. Tracking ANS activity in patients may provide information about traumatic brain injury, heart failure, …
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The effects of an ultra-endurance event on heart rate variability and cognitive performance during induced stress in Ironman triathletes
… interest. It is well known that HRV, a marker of autonomic activity, is enhanced with long-term aerobic exercise training. However, after acute exercise, HRV is reduced, but recovers over time depending on the intensity of the prior bout of exercise. A limitation of previous research is that …
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THE EFFECTS OF GASTRIC AND HOMEOSTATIC AUTONOMIC AFFERENT REFLEXES ON CARDIAC AUTONOMIC EFFERENT ACTIVITY IN HEALTHY HUMAN VOLUNTEERS
The effects of gastric autonomic afferent reflexes on cardiovascular autonomic efferent activity are regarded as a direct neural effect of the activation of gastric receptors which send afferent inputs to the central nervous system (CNS) to cause various cardiovascular changes (Van Orshoven et al., …
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Exploring the relationship between anxiety sensitivity and heart rate variability
… heart rate variability (HRV), a biomarker of autonomic activity. Like AS, HRV has been well studied in clinical samples. High-frequency heart rate variability (HF-HRV), which indexes parasympathetic activity, has been shown to be lower among clinical samples, relative to controls and during …
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Cardiac Autonomic Assessment and Diastolic Function in Individuals with Spinal Cord Injury
… index (QTVI) as a measure of cardiac autonomic function in individuals with spinal cord injury (SCI). The secondary purpose was to investigate the influence of cardiac autonomic activity and blood volume on diastolic function in individuals with SCI. Results from Study 1 showed that …
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A Novel Experimental Method for Measuring Proactive and Reactive Responses to Threat and an Examination of Their Personality and Neural Correlates
… of behavioral, muscular, and sympathetic autonomic activity were collected; self-report was used to measure mood and trait personality; and blood oxygen-level dependent functional magnetic resonance imaging (BOLD fMRI) was used to measure individual differences in threat-related amygdala …
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A Mindfulness-Based Intervention to Improve Family Functioning Among Child Welfare-Involved Families with Substance Use
… effects on proximal (i.e., parental stress, autonomic activity during a stress-induced state and recovery [heart rate variability], coping, and mindfulness) and distal (i.e., parental substance misuse, child maltreatment potential, parent-child relationships, and child well-being) domains of …
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Altered Autonomic Nervous System Function in Chickens Divergently Selected for Body Weight
Autonomic nervous system activity is related to body weight regulation. Based on the MONA LISA hypothesis it has been suggested that most obese subjects and animals have low sympathetic nervous system activity. The aim of this study was to investigate whether there are differences in autonomic …
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Phenotyping Behavioral Disorders in REM Sleep: Study of Digital Biomarkers of Neurodegeneration
… early-stage biomarkers and understanding autonomic dysfunction in RBD. Heart Rate Variability (HRV) and QT Variability (QTV), studied across different sleep stages, were investigated as potential digital biomarkers of neurodegeneration. Apart from traditional HRV analysis, this thesis also …
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The Impact of Psychological Interventions on Wound Healing
… that being with another person buffered autonomic activity over the tape stripping period. Taken together, these studies support previous research that psychological interventions can help promote healing. The experimental studies offer several novel findings, including the importance of …