Bayesian decision-making under stress-preserved weighting of prior and likelihood information

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作者
Sabrina Trapp
Iris Vilares
机构
[1] University of Hamburg,Department of Psychology
[2] University of Minnesota,Department of Psychology
[3] Bielefeld University,Faculty of Psychology and Sports Science
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Scientific Reports | / 10卷
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摘要
A rich body of empirical work has addressed the question of how stress changes the way we memorize, learn, and make high-level decisions in complex scenarios. There is evidence that stress also changes the way we perceive the world, indicating influences on decision-making at lower levels. Surprisingly, as of yet, little research has been conducted in this domain. A few studies suggest that under stress, humans tend to eschew existing knowledge, and instead focus on novel input or information from bottom-up. Decision-making in the perceptual domain has been modeled with Bayesian frameworks. Here, existing knowledge about structures and statistics of our environment is referred to as prior, whereas sensory data are termed likelihood. In this study, we directly assessed whether stress, as induced by the socially evaluated cold pressure task (SECPT), would modulate low-level decisions, specifically the weight given to sensory information, and how people reacted to changes in prior and sensory uncertainty. We found that while the stress-inducing procedure successfully elicited subjective stress ratings as well as stress relevant physiological paramters, it did not change participants’ average reliance on sensory information. Furthermore, it did not affect participants’ sensitivity to changes in prior and sensory uncertainty, with both groups able to detect it and modulate their behavior accordingly, in a way predicted by Bayesian statistics. Our results suggest that, contrary to our predictions, stress may not directly affect lower-level sensory-motor decisions. We discuss the findings in context of time scales of the stress reaction, linked to different neural and functional consequences.
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[1]  
de Quervain D(2017)Stress, glucocorticoids and memory: Implications for treating fear-related disorders Nat. Rev. Neurosci. 18 7-19
[2]  
Schwabe L(2008)Psychosocial stress induces working memory impairments in an n-back paradigm Psychoneuroendocrinology 33 643-653
[3]  
Roozendaal B(2013)Working memory is differentially affected by stress in men and women Behav. Brain Res. 241 144-153
[4]  
Schoofs D(2018)Dopamine effects on stress-induced working memory deficits Behav. Pharmacol. 29 584-591
[5]  
Preuss D(1997)Arnsten AF Supranormal stimulation of D1 dopamine receptors in the rodent prefrontal cortex impairs spatial working memory performance J. Neurosci. 17 8528-8535
[6]  
Wolf OT(2007)Arnsten AF Inverted-U dopamine D1 receptor actions on prefrontal neurons engaged inworking memory Nat. Neurosci. 10 376-314
[7]  
Schoofs D(2014)Dynamic adaptation of large-scale brain networks in response to acute stressors Trends Neurosci. 37 304-1475
[8]  
Pabst S(2005)Delayed attentional engagement in the attentional blink J. Exp. Psychol. Hum. Percept. Perform. 31 1463-288
[9]  
Brand M(2010)Emotional modulation of the attentional blink: Is there an effect of stress? Emotion 10 283-422
[10]  
Wolf OT(2009)Stress signalling pathways that impair prefrontal cortex structure and function Nat. Rev. Neurosci. 10 410-46