TY - JOUR
T1 - A physiological and dynamical systems model of stress
AU - Brooks, Justin
AU - Crone, Joshua C.
AU - Spangler, Derek P.
N1 - Funding Information:
This research was sponsored by the U.S. Army Research Laboratory 's (ARL) Human Research and Engineering Directorate (HRED) and was accomplished under Cooperative Agreement Number W911NF-21-2-0108 . The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the U.S. Army Research Laboratory's (ARL) Human Research and Engineering Directorate. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein.
Publisher Copyright:
© 2021
PY - 2021/8
Y1 - 2021/8
N2 - 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.
AB - 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.
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U2 - 10.1016/j.ijpsycho.2021.05.005
DO - 10.1016/j.ijpsycho.2021.05.005
M3 - Article
C2 - 34029625
AN - SCOPUS:85108075547
SN - 0167-8760
VL - 166
SP - 83
EP - 91
JO - International Journal of Psychophysiology
JF - International Journal of Psychophysiology
ER -