People differ in what they experience as stressful and to what extent. We define a variable-stress threshold (sigma)-that links the hypothalamo-pituitary-adrenocortical (HPA) axis and the memory system in a feedback mechanism. Current sigma dictates the intensity of a stimulus that turns the stress response on. On the other hand, each "jump" of the HPA axis helps long-term registration of the stressful event via concentration changes of some of its products, consequently changing the value of sigma for future stressors. After the action of a strong exterior stressor, the new stressful memory acts as an internal source of stress. We assume that its intensity decreases with the rate of processing the stressful information. This process is characterized by a time parameter tau. Both sigma and tau are individual: They depend on personality traits, genetic as well as acquired. The mathematical model presented here simulates the feedback mechanism between the HPA axis and the memory system i...nvolved in stress reaction.
TY - JOUR
AU - Savić, D
AU - Knežević, Goran
AU - Opačić, Goran
PY - 2000
UR - http://reff.f.bg.ac.rs/handle/123456789/311
AB - People differ in what they experience as stressful and to what extent. We define a variable-stress threshold (sigma)-that links the hypothalamo-pituitary-adrenocortical (HPA) axis and the memory system in a feedback mechanism. Current sigma dictates the intensity of a stimulus that turns the stress response on. On the other hand, each "jump" of the HPA axis helps long-term registration of the stressful event via concentration changes of some of its products, consequently changing the value of sigma for future stressors. After the action of a strong exterior stressor, the new stressful memory acts as an internal source of stress. We assume that its intensity decreases with the rate of processing the stressful information. This process is characterized by a time parameter tau. Both sigma and tau are individual: They depend on personality traits, genetic as well as acquired. The mathematical model presented here simulates the feedback mechanism between the HPA axis and the memory system involved in stress reaction.
PB - Psychonomic Soc Inc, Austin
T2 - Psychobiology
T1 - A mathematical model of stress reaction: Individual differences in threshold and duration
EP - 592
IS - 4
SP - 581
VL - 28
DO - 10.3758/BF03332017
ER -
@article{
author = "Savić, D and Knežević, Goran and Opačić, Goran",
year = "2000",
abstract = "People differ in what they experience as stressful and to what extent. We define a variable-stress threshold (sigma)-that links the hypothalamo-pituitary-adrenocortical (HPA) axis and the memory system in a feedback mechanism. Current sigma dictates the intensity of a stimulus that turns the stress response on. On the other hand, each "jump" of the HPA axis helps long-term registration of the stressful event via concentration changes of some of its products, consequently changing the value of sigma for future stressors. After the action of a strong exterior stressor, the new stressful memory acts as an internal source of stress. We assume that its intensity decreases with the rate of processing the stressful information. This process is characterized by a time parameter tau. Both sigma and tau are individual: They depend on personality traits, genetic as well as acquired. The mathematical model presented here simulates the feedback mechanism between the HPA axis and the memory system involved in stress reaction.",
publisher = "Psychonomic Soc Inc, Austin",
journal = "Psychobiology",
title = "A mathematical model of stress reaction: Individual differences in threshold and duration",
pages = "592-581",
number = "4",
volume = "28",
doi = "10.3758/BF03332017"
}
Savić, D., Knežević, G.,& Opačić, G.. (2000). A mathematical model of stress reaction: Individual differences in threshold and duration. in Psychobiology
Psychonomic Soc Inc, Austin., 28(4), 581-592.
https://doi.org/10.3758/BF03332017
Savić D, Knežević G, Opačić G. A mathematical model of stress reaction: Individual differences in threshold and duration. in Psychobiology. 2000;28(4):581-592.
doi:10.3758/BF03332017 .
Savić, D, Knežević, Goran, Opačić, Goran, "A mathematical model of stress reaction: Individual differences in threshold and duration" in Psychobiology, 28, no. 4 (2000):581-592,
https://doi.org/10.3758/BF03332017 . .
