A physiological and dynamical systems model of stress
| Autor: | Justin Brooks, Joshua C. Crone, Derek P. Spangler |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Dynamical systems theory General Neuroscience 05 social sciences Dynamical system 050105 experimental psychology Stress (mechanics) 03 medical and health sciences Nonlinear system 0302 clinical medicine Neuropsychology and Physiological Psychology Physiology (medical) Phase space Attractor 0501 psychology and cognitive sciences Sensitivity (control systems) Statistical physics Set (psychology) 030217 neurology & neurosurgery |
| Zdroj: | International Journal of Psychophysiology. 166:83-91 |
| ISSN: | 0167-8760 |
| Popis: | Stress responses vary drastically for a given set of stimuli, individuals, or points in time. A potential source of this variance that is not well characterized arises from the theory of stress as a dynamical system, which implies a complex, nonlinear relationship between environmental/situational inputs and the development/experience of stress. In this framework, stress vs. non-stress states exist as attractor basins in a physiologic phase space. Here, we develop a model of stress as a dynamical system by coupling closed loop physiologic control to a dynamic oscillator in an attractor landscape. By characterizing the evolution of this model through phase space, we demonstrate strong sensitivity to the parameters controlling the dynamics and demonstrate multiple features of stress responses found in current research, implying that these parameters may contribute to a significant source of variability observed in empiric stress research. |
| Databáze: | OpenAIRE |
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