Impedance cardiography used to assess patterns of cardiovascular response to behavioral stressors
| Autor: | Gwendolyn A. Pincomb, Michael F. Wilson, Bong Hee Sung, William R. Lovallo |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Adult
Male medicine.medical_specialty Cardiac output media_common.quotation_subject Hemodynamics Blood Pressure Cardiography Impedance Heart Rate Risk Factors Internal medicine Avoidance Learning Reaction Time medicine Humans media_common Motivation medicine.diagnostic_test business.industry General Neuroscience Stressor Stroke Volume Impedance cardiography Electrophysiology Neuropsychology and Physiological Psychology Blood pressure medicine.anatomical_structure Hypertension Vascular resistance Cardiology Arousal business Psychophysiology Vigilance (psychology) |
| Zdroj: | Biological Psychology. 36:97-105 |
| ISSN: | 0301-0511 |
| Popis: | This paper presents two examples of how impedance cardiography may be used to interpret the hemodynamic influences on blood pressures measured during behavioral stress. In Study 1, blood pressure changes which were similar during two tasks were shown to have important differences in their cardiac output and vascular resistance components. During work on a reaction time task having aversive incentives compared with a neutral task, the blood pressure changes were seen to be associated with lowered vascular resistance and raised cardiac activity, a “fight-flight” pattern. In Study 2, blood pressure response differences between two subject groups working on an identical task were found to have blood pressure changes differing in their underlying cardiac and vascular components as measured by impedance. Such uses of impedance cardiography have widespread potential application in psychophysiological research with humans. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|