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 34 for “"Nervous system activity"”.
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Multivariate Discrimination of Emotion-Specific Autonomic Nervous System Activity
The present study investigated autonomic nervous system (ANS) patterning during experimentally manipulated emotion. Film clips previously shown to induce amusement, anger, contentment, disgust, fear, and sadness, in addition to a neutral control, were presented to 34 college-aged subjects while …
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Do Different Music Genres Differentially Affect Autonomic Activity? How Music and Sound Affect Autonomic Activity Aroused by Visual Stimuli
… 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 System (IAPS) …
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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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Effects of sleep deprivation on autonomic nervous system
… events by increasing the sympathetic nervous system activity. The aim of the present study was to evaluate the relationship between sleep deprivation and the autonomic nervous system activity by means of heart rate variability (HRV) and blood pressure variability (BPV). All data were …
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Blood Pressure Regulation by the Endocannabinoid System in Conditions Associated with Hypertension
… is mediated by an imbalance in autonomic nervous system activity. Baroreflex sensitivity for control of heart rate, an important index of vagus nerve function as well as general morbidity and mortality, is often impaired in conditions associated with hypertension. Restoration of baroreflex …
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Cardiovascular Risk Indicators and Health-Related Quality of Life in Women Veterans with PTSD
… blood pressure, and muscle sympathetic nerve activity) and physical and mental health-related quality of life (SF-36) in a sample of women veterans with PTSD to a sample of nonveteran women without PTSD. In addition, hierarchical multiple regression analyses were used to examine the …
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What Happened Last Night? Sleep, Sex, and Recollection
… memory performance, sleep progress, autonomic nervous system activity, and sleep-related behavior. Results indicated a significant interaction effect between condition (sleep/awake) and image type (sexual/nonsexual): words paired with sexual images were best recalled by sleep participants, …
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QT-interval adaptation to changes in autonomic balance
… as it relates to the influence of the autonomic nervous system on the heart, is primarily studied via frequency-domain and time-domain analysis of heart rate variability (HRV). HRV studies the variability of the RR intervals in the ECG; these intervals are modulated by the autonomic influence on …
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Sleep under stress: the complex web of fear, hypervigilance and mental health in a low socioeconomic status community in South Africa
… characterized by heightened sympathetic nervous system activity and reduced parasympathetic tone, which can be quantified through measures of autonomic nervous system function, such as heart rate variability. Heart rate variability (HRV) is a non-invasive measure of autonomic regulation …
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Lateralized Induction of Cardiovascular Responses: Exploring Asymmetric Autonomic Regulation
There is clear evidence that the autonomic nervous system (ANS) is lateralized at both the peripheral as well as the central levels of the nervous system. Both the vagus and the sympathetic ganglia asymmetrically innervate the sino-atrial node and the myocardium of the heart. This lateralization …
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Cardiovascular Activity During Laboratory Tasks in Individuals with High and Low Worry
… been related to exaggerated cardiovascular reactivity and delayed recovery to laboratory stressors, and to increased risk of cardiovascular disease. This study examined cardiovascular responses in high and low worriers to a range of laboratory tasks. The aim of this study was to determine if …
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Defensive Neurophysiological Response: Exploring the Neural and Autonoic Correlates of Social Behavior
… hyper-arousal within the central and autonomic nervous systems). It is unknown how this neurophysiological state contributes to difficulties in ASD. Therefore, the current study quantified peripheral and central nervous system activity and investigated how this neurophysiological circuit may be …
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The Effect of an Acute Bout of Rock Climbing on Cognitive Functioning and Cortisol Levels
<p>Rock climbing is an understudied physical activity (PA) that demands active decision-making, integration of sensory and visual input, and continuous regulation of nervous system activity to produce complex motor outputs. The unique psychological demands of climbing warrant studying its effect on …
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Psychological Monitoring: Detecting Real-Time Emotional Changes
… (α-SNS), and β-adrenergic (β-SNS) sympathetic nervous system activity. These separate autonomic systems correspond to distinct emotional dimensions: valence to the PNS, motivation (approach-avoidance) to the α-SNS, and activation to the β-SNS. This framework enables continuous, real-time, and …
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Investigating the Effects of Endurance Training on Heart Rate Variability in Female Swimmer Athletes
… their training. Variations in Autonomic Nervous System activity (ANS) may provide an effective marker of fatigue and of recovery. ANS control of heart rate is well known to be affected by exercise training, and those adaptations can be determined using measures of heart rate variability …
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Evaluation of HRV as a predictor of response to a modified physical training program in ROTC cadets
… be closely associated with baseline autonomic nervous system activity, indicated by heart rate variability (HRV). Variability in heart rate may be related to results on the Army Physical Fitness Test (APFT). PURPOSE: The purpose of this study was to determine if ROTC cadets’ APFT scores would …
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Differences in Lower Urinary Tract Symptoms between Sympathetic Hyperactive and Hypoactive men
… (HRV) is a tool used to measure autonomic nervous function; however, there is no evidence that it can be used to define sympathetic hyperactivity in men with lower urinary tract symptoms (LUTS). I suspected that LUTS would differ between sympathetic hyperactive and hypoactive patients. …
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An experimental study of exposure-based and emotion-focused interventions: Strange bedfellows, or a match made in heaven?
… was positively correlated with parasympathetic nervous system activity when controlled for variability in these emotional states.
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The effect of a visual stimulus on behavioral state and visual responsiveness in preterm infants
… over time, mediated in part by emerging nervous system activity. This study evaluated the organization of behavioral states and the percentages of time spent in particular behavioral states by preterm infants. In addition, the effects of visual stimulation on the organization of …
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Development Of Bioelectronic Sensors For Real Time Monitoring Of Gastrointestinal Health
… this thesis focuses on the gastrointestinal (GI) system, which plays an essential role in maintaining homeostasis within the body, by facilitating digestion, nutrient absorption, and waste excretion. Beyond its fundamental functions, the GI system is intricately connected to various aspects of …
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