Effects of psychosocial stress on psychophysiological activity during risky decision-making in male adolescents

Stanković, Aleksandra; Fairchild, Graeme; Aitken, Michael R. F.; Clark, Luke

doi:10.1016/j.ijpsycho.2013.11.001

Cited by 13 publications

(8 citation statements)

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“…In studies of acoustic startle reflex, high sensation seeking individuals demonstrate reduced startle reactivity [65, 66]. In a gambling task, electrodermal reactivity increased to losses as compared to wins and this difference is negatively correlated with trait impulsivity in adolescents [67]. Together, these studies suggest lower arousal and/or arousability in association with impulsivity.…”

Section: Discussionmentioning

confidence: 99%

Barratt Impulsivity and Neural Regulation of Physiological Arousal

Zhang

et al. 2015

PLoS ONE

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BackgroundTheories of personality have posited an increased arousal response to external stimulation in impulsive individuals. However, there is a dearth of studies addressing the neural basis of this association.MethodsWe recorded skin conductance in 26 individuals who were assessed with Barratt Impulsivity Scale (BIS-11) and performed a stop signal task during functional magnetic resonance imaging. Imaging data were processed and modeled with Statistical Parametric Mapping. We used linear regressions to examine correlations between impulsivity and skin conductance response (SCR) to salient events, identify the neural substrates of arousal regulation, and examine the relationship between the regulatory mechanism and impulsivity.ResultsAcross subjects, higher impulsivity is associated with greater SCR to stop trials. Activity of the ventromedial prefrontal cortex (vmPFC) negatively correlated to and Granger caused skin conductance time course. Furthermore, higher impulsivity is associated with a lesser strength of Granger causality of vmPFC activity on skin conductance, consistent with diminished control of physiological arousal to external stimulation. When men (n = 14) and women (n = 12) were examined separately, however, there was evidence suggesting association between impulsivity and vmPFC regulation of arousal only in women.ConclusionsTogether, these findings confirmed the link between Barratt impulsivity and heightened arousal to salient stimuli in both genders and suggested the neural bases of altered regulation of arousal in impulsive women. More research is needed to explore the neural processes of arousal regulation in impulsive individuals and in clinical conditions that implicate poor impulse control.

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Section: Discussionmentioning

confidence: 99%

Barratt Impulsivity and Neural Regulation of Physiological Arousal

Zhang

et al. 2015

PLoS ONE

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“…Attenuation of cardiovascular activity in the random-reward condition suggests prevention of energy expenditure by reduction of allocation of energy to ongoing behaviors that have become inappropriate, and allocation of the saved energy to attention and cognitive processes to find a way to more appropriate coping. This result suggests that autonomic responses accompanying decision-making should be under the top-down regulation on the basis of appraisal for the current situation (Ohira et al, 2010; Studer and Clark, 2011; Stankovic et al, 2014). It should be noted that the average value of entropy was maintained at a high level in the random-reward condition (see Table 1), suggesting that participants did not abandon efforts for the task and did not just adopt simple strategies of decision-making (e.g., choice of the same option in all trials), even in the random-reward condition.…”

Section: Discussionmentioning

confidence: 99%

Neural and sympathetic activity associated with exploration in decision-making: further evidence for involvement of insula

Ohira

Ichikawa

Kimura

et al. 2014

Front. Behav. Neurosci.

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We previously reported that sympathetic activity was associated with exploration in decision-making indexed by entropy, which is a concept in information theory and indexes randomness of choices or the degree of deviation from sticking to recent experiences of gains and losses, and that activation of the anterior insula mediated this association. The current study aims to replicate and to expand these findings in a situation where contingency between options and outcomes is manipulated. Sixteen participants performed a stochastic decision-making task in which we manipulated a condition with low uncertainty of gain/loss (contingent-reward condition) and a condition with high uncertainty of gain/loss (random-reward condition). Regional cerebral blood flow was measured by 15O-water positron emission tomography (PET), and cardiovascular parameters and catecholamine in the peripheral blood were measured, during the task. In the contingent-reward condition, norepinephrine as an index of sympathetic activity was positively correlated with entropy indicating exploration in decision-making. Norepinephrine was negatively correlated with neural activity in the right posterior insula, rostral anterior cingulate cortex, and dorsal pons, suggesting neural bases for detecting changes of bodily states. Furthermore, right anterior insular activity was negatively correlated with entropy, suggesting influences on exploration in decision-making. By contrast, in the random-reward condition, entropy correlated with activity in the dorsolateral prefrontal and parietal cortices but not with sympathetic activity. These findings suggest that influences of sympathetic activity on exploration in decision-making and its underlying neural mechanisms might be dependent on the degree of uncertainty of situations.

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“…The relationship between poor response inhibition and diminished cardiac responses to acute psychological stress have been shown both in children (aged 7 -11) and young adults (Bennett et al, 2014;Bibbey et al, 2016). Blunted autonomic reactivity to stress has also been reported in impulsive adolescents and adults (Allen et al, 2009;Stankovic et al, 2014).…”

Section: Physiological Arousal and Impulsivitymentioning

confidence: 97%

The role of emotions and physiological arousal in modulating impulsive behaviour

Herman

Critchley

Duka

2018

Biological Psychology

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Impulsivity received considerable attention in the context of drug misuse and certain neuropsychiatric conditions. Because of its great health and well-being importance, it is crucial to understand factors which modulate impulsive behaviour. As a growing body of literature indicates the role of emotional and physiological states in guiding our actions and decisions, we argue that current affective state and physiological arousal exert a significant influence on behavioural impulsivity. As 'impulsivity' is a heterogeneous concept, in this paper, we review key theories of the topic and summarise information about distinct impulsivity subtypes and their methods of assessment, pointing out to the differences between the various components of the construct. Moreover, we review existing literature on the relationship between emotional states, arousal and impulsive behaviour and suggest directions for future research.

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Effects of psychosocial stress on psychophysiological activity during risky decision-making in male adolescents

Cited by 13 publications

References 56 publications

Barratt Impulsivity and Neural Regulation of Physiological Arousal

Barratt Impulsivity and Neural Regulation of Physiological Arousal

Neural and sympathetic activity associated with exploration in decision-making: further evidence for involvement of insula

The role of emotions and physiological arousal in modulating impulsive behaviour

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