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Showing 1 to 20 of 21 for “"cardiovascular regulation"”.
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Alterations in cardiovascular regulation and function assessed using cardiovascular system identification
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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Hostility and Negative Emotion: Implications for Verbal Learning and Cardiovascular Regulation
… before and after the cold pressor to examine cardiovascular regulation in high and low hostiles. Further, before the first trial participants were asked to predict the number of words that they would be able to recall on the first trial. After completion of the experiment participants were …
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Hostility and Cardiovascular Regulation: An Investigation of Lateralized Pre-Motor Functions
… physiological correlates of hostility, such as cardiovascular lability and increased risk of cardiovascular disease, are vital when considering the possible health risks associated with high levels of hostility (Henry & Meehan, 1981; Matthew & Haynes, 1986; Johnson, 1990; Heller, 1993; Heilman, …
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Investigating The Role Of Transient Receptor Potential Ankyrin One (TRPA1) In Cardiovascular Regulation
… by RT qPCR and MSD multiplex ELISA showed upregulation of pro-oxidative genes in hypertensive mice of both genotype. This was significantly greater in hypertensive TRPAl KO mice than in hypertensive TRPAl WT mice.<br/>These findings may partially explain the increase in hypertrophy in these …
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Dynamic Effects of Stress and Hostility: Group Differences in Cardiovascular Regulation and Learning
… tested hypotheses linking the right cerebral regulation of hostility and cardiovascular reactivity. First, replication of previous research supporting heightened cardiovascular reactivity (mean arterial pressure, systolic blood pressure, diastolic blood pressure, and heart rate) among …
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Principal component based system identification and its application to the study of cardiovascular regulation
(cont.) Our methods analyze the coupling between instantaneous lung volume and heart rate and, subsequently, derive representative indices of parasympathetic and sympathetic control based on physiological and experimental findings. The validity of each method is evaluated via experimental data …
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Frontal Lobe Correlates in Hostile Men: Analysis of Facial Motor Tone and Cardiovascular Regulation
… hostility and both facial muscle tone and cardiovascular functioning. Based on previous research, it was proposed that individuals high in self-reported hostility would show increased cardiovascular reactivity in response to a physical stressor (the cold-pressor task). Additionally, based …
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The Dynamic Cerebral Laterality Effect: Group Differences in Hostility, Cardiovascular Regulation, and Sensory Recognition
… tested two hypotheses linking the right cerebral regulation of hostility and cardiovascular arousal. First, replication of previous research supporting heightened cardiovascular (systolic blood pressure, diastolic blood pressure, and heart rate) reactivity among high hostile participants was …
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The influence of lateralized stressors on cardiovascular regulation and perception in high and low hostile men
… of hostility on the lateralized tasks of cardiovascular regulation, verbal fluency, nonverbal fluency, and dichotic listening was assessed. Twenty-four subjects divided into two groups, high- and low-hostile men underwent physiological measurements of SBP, DBP, and HR before and after …
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Differential Efficts of Hostility on Frontal Lobe Performance: A dual task approach with Fluency and Cardiovascular Regulation
… nonverbal fluency, and the concurrent cerebral regulation of autonomic nervous system functioning was examined. Forty-eight right-handed males were recruited for participation with half classified as low-hostile and the other half as high-hostile. Previous research has shown that high-hostile …
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Development of Cardiovascular Regulation in Embryos of the Domestic Fowl (Gallus Gallus), with a Partial Comparison to Embryos of the Desert Tortoise (Gopherus Agassizii)
In adult vertebrates, cardiovascular regulation is accomplished by numerous systems with neural, hormonal and local components responsible for the majority of regulation. These regulatory components work in concert to maintain the essential function of blood perfusion to adult tissues. Given the …
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A Neuropsychological Investigation of Sex Differences in Cardiovascular Reactivity to Verbal and Spatial Fluency Tasks: Testing a New Model of Sex Differences in Cardiovascular Regulation and Disease
… as stressors. Dynamic and functional cerebral regulation of cardiovascular reactivity was assessed, specifically, the role that the frontal lobes have in regulating SBP, DBP, and HR in men and women. Sex differences in the functional cerebral regulation of these cardiovascular factors were …
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Analysis of Quantitative Electroencephalographic and Cardiovascular Responses to Stress Amoung Low- and High-Hostiles
… to identify higher cortical correlates of cardiovascular arousal. Low- and high-hostile, right-handed, undergraduate men were identified using the Cook Medley Hostility Scale (CMHS). All participants (N = 30) completed the cold pressor paradigm. Cardiovascular (heart rate, systolic blood …
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Valutazione degli effetti dell'esercizio fisico adattato sulla capacità fisica e sulla regolazione cardiocircolatoria in pazienti con sclerosi multipla
… patients show impaired autonomic functions and cardiovascular regulation during exercise. The aim of the present investigation was to assess the effectiveness of a six months combined training (CT) - in terms of aerobic capacity, walk and speed ability, balance, fatigue and cardiovascular …
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Cardiovascular Consequences of Estrogen Deficiency: Studies in Premenopausal Women
… functional hypothalamic amenorrhea (ExFHA) on cardiovascular regulation is unknown. Three mechanistic studies compared cardiovascular responses to exercise and orthostatic stress in ExFHA women with responses in physically active (ExOv) and sedentary (SedOv) eumenorrheic ovulatory women. …
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Central autonomic control in spontaneously hypertensive rats: a study on phasic phenomena during rapid-eye-movement sleep
The cardiovascular regulation undergoes wide changes in the different states of sleepwake cycle. In particular, the relationship between spontaneous fluctuations in heart period and arterial pressure clearly shows differences between the two sleep states. In non rapid-eye-movement sleep, heart …
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Time-frequency investigation of heart rate variability and cardiovascular system modeling of normal and chronic obstructive pulmonary disease (COPD) subjects
… in the heart rate variability field and the cardiovascular regulation system in normal and Chronic Obstructive Pulmonary Disease (COPD) subjects. It explores the correlations between heart rate variability and cardiovascular regulation, which interact through complex multiple feedback and …
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Changes in CW-Doppler aortic blood flow responses with passive tilting in normo- and borderline hypertensive men
… to postural tilting may suggest impairment in cardiovascular regulation peculiar to individuals at risk for hypertension.
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Relaxin: a new cardiovascular hormone in humans? Comparative potency and mechanisms of action
… been postulated that relaxin may be involved in cardiovascular regulation. We used concentrations similar to those found in the plasma in physiological (non-pregnant, pregnancy) and pathophysiological (chronic heart failure) states. Firstly, we characterised the effects of relaxin in small human …
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Altered Autonomic Nervous System Function in Chickens Divergently Selected for Body Weight
… 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 nervous system …
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