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Query: UMLS:C0848237 (acute stress)
 4,619 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

This study aimed to test the dimensional structure of acute stress disorder (ASD). Latent profile analysis was conducted on scores from the Acute Stress Disorder Scale (Bryant, Moulds, & Guthrie, 2000) using a large sample of female victims of sexual trauma. Four distinct classes were found. Two of the classes represented high and low levels of ASD, and the high ASD class was associated with a high probability of subsequent posttraumatic stress disorder (PTSD). There were 2 intermediate classes that were differentiated by the number of arousal symptoms, and the class with high levels of arousal symptoms had a higher risk of PTSD. The results suggested that ASD is best described by qualitatively and quantitatively differing subgroups in this sample, whereas previous research has assumed ASD to be dimensional. This may explain the limited success of using ASD to predict subsequent PTSD. (PsycINFO Database Record (c) 2014 APA, all rights reserved).
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PMID:Different profiles of acute stress disorder differentially predict posttraumatic stress disorder in a large sample of female victims of sexual trauma. 2497 31

Acute stress can modulate memory for individual parts of an event (items), but whether it similarly influences memory for associations between items remains unclear. We used a within-subjects design to explore the influence of acute stress on item and associative memory in humans. Participants associated negative words with neutral objects, rated their subjective arousal for each pair, and completed delayed item and paired associative recognition tasks. We found strikingly different patterns of acute stress effects on item and associative memory: for high-arousal pairs, preencoding stress enhanced associative memory, whereas postencoding stress enhanced item memory. Preretrieval stress consistently impaired both forms of memory. We found that the influence of stress-induced cortisol also varied, with a linear relationship between cortisol and item memory but a quadratic relationship between cortisol and associative memory. These findings reveal key differences in how stress, throughout the memory cycle, shapes our memories for items and associations. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
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PMID:Acute stress throughout the memory cycle: Diverging effects on associative and item memory. 3022 62

Cannabis use is prevalent but only a minority of regular users develop cannabis use disorder (CUD); thus, CUD risk identification among current cannabis users is vital for targeted intervention development. Existing data suggest that high distress intolerance (DI), an individual difference reflective of the ability to withstand negative affect, is linked to CUD, possibly via stress-elicited impairment of response inhibition but this has never been explicitly tested. Frequent cannabis users with high and low DI completed a go/no-go task during EEG recording before and after a laboratory stressor. Relations between DI, cannabis use-related problems, and behavioral as well as neurophysiological markers of response inhibition functioning were assessed. DI significantly moderated the effect of the stressor on the conflict-monitoring but not evaluative phase of response inhibition as measured by N2 and P3a amplitude, respectively. Unexpectedly, cannabis users with high DI demonstrated stressor-elicited enhancement rather than impairment of conflict-monitoring neural activity, which was related to faster reaction time (RT) and decreased past-month cannabis problems. Enhanced inhibition-related modulation of P3a amplitude was generally associated with increased cannabis problems regardless of acute stress. Results did not provide support for stress-elicited impairment in cognitive control as a mechanism linking high DI and CUD, though some support was found for the relevance of inhibition-related neural activity to CUD. Stress-elicited enhancement of conflict-monitoring neural activity during response inhibition may reflect an adaptive neural response among cannabis users with high DI that protects against CUD in this at-risk group. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
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PMID:Distress intolerance moderation of neurophysiological markers of response inhibition after induced stress: Relations with cannabis use disorder. 3040 26

Acute stress impairs working memory (i.e., the ability to update and keep information in mind). Although that effect is well established, the boundaries around it are not. In particular, little is known about how recalling an unresolved stressor might influence working memory, or about how stress-or recalling a stressful event-influences the processes underlying working memory task performance (e.g., sustained/controlled attention vs. capacity). We addressed these issues in the present study (N = 171) by randomly assigning participants to write about an unresolved, extremely stressful experience (stressful writing condition; n = 85) or the events of the prior day (control condition; n = 86), and, subsequently, both measured change detection task performance and used computational cognitive modeling to estimate the processes underlying it-namely, attention, capacity, and bias. We found that, relative to the control task, writing about a stressful experience neither impaired performance on the change detection task nor altered any of the processes underlying performance on that task. These results show that the effects of writing about an unresolved, stressful episode do not parallel effects of acute stress on working memory, indicating that experiencing a stressor may have very different cognitive effects than recalling it at a later time. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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PMID:Feel free to write this down: Writing about a stressful experience does not impair change detection task performance. 3055 Mar 6

Accurately understanding the thoughts and feelings of romantic partners, termed empathic accuracy, is critical for optimal relationship functioning. Empathic failure is linked to common reasons couples seek therapy (Doss, Simpson, & Christensen, 2004; Jacobson & Christensen, 1996) and is either implicitly or explicitly a target of many couple therapies (e.g., Jacobson & Christensen, 1996). More specifically, couple therapies target partners' abilities to accurately understand one another preceding and during conflict, periods characterized by high levels of stress. The current study tests the hypothesis that acute stress can be harmful for empathic accuracy in romantic couples, and tests two competing path models of the impact of stress on accuracy. Results show that an acute stressor affected accuracy of men and women differently, impairing accuracy in women but not observably affecting men's accuracy. The effect of the stressor on empathic accuracy for women was mediated by curvilinear arousal, and men's accuracy was also associated with curvilinear arousal. This pattern of results suggests that moderate arousal is optimal for empathic accuracy for both men and women, but this effect was twice as large for women relative to men. These findings point toward potential avenues to improve existing couple therapies by incorporating strategies to mitigate the effects of stress, thereby increasing couples' ability to accurately understand one another in therapy. These findings also suggest strategies for couples to be optimally productive when having important relationship conversations by attending to their level of arousal. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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PMID:The effect of stress on empathic accuracy in romantic couples. 3081 79

Positive memory retrieval generates pleasant feelings that can counteract negative affective states and improve mood. However, not all positive memories are created equal. Our most treasured memories are likely experiences we shared with other people (e.g., birthday party) rather than something we did alone (e.g., receiving good grades). Here, we explored whether the social context within a positive memory enhanced its subjective value and contributed to an individual's well-being. In Study 1, participants were asked how much they would be willing to pay to reexperience positive memories that occurred with socially close others (high-social), with acquaintances (low-social) or alone (nonsocial). When controlling for the memory's positivity, participants were still willing to pay 1.5 times as much for high-social than for low-social or nonsocial memories. Likewise, participants chose to reminisce about high-social memories more frequently than less social ones of equal positive feeling. In Study 2, recalling memories rich in social context recruited regions previously implicated in mentalizing and reward (e.g., caudate), which further correlated with greater ability to savor positive emotions in daily life. Finally, we examined the benefit of social context by asking participants to recall positive memories that varied in social context after acute stress exposure. In Study 3, recalling memories that included higher social context led to a greater dampening of the physiological stress response (i.e., cortisol). Taken together, these findings suggest that social context inherent in a positive memory enhances its value, providing a possible mechanism by which positive reminiscence aids stress coping and enhances well-being. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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PMID:The social value of positive autobiographical memory retrieval. 3146 7

The Edwin B. Newman Graduate Research Award is given jointly by Psi Chi and APA. The award was established to recognize young researchers at the beginning of their professional lives and to commemorate both the 50th anniversary of Psi Chi and the 100th anniversary of psychology as a science (dating from the founding of Wundt's laboratory). It was named for Dr. Edwin B. Newman, the first national president of Psi Chi (1929) and one of its founders. The 2019 recipient is Lydia G. Roos, "for an outstanding research paper that examined how trait suppression and reappraisal interact with stressful life events to affect cortisol reactivity. Suppression, but not reappraisal, was associated with cortisol responses to acute stress for people with more exposure to recent stressful events, particularly when events included a relationship stressor. The paper, titled "Recent Stressful Life Events, Relationship Stressors, and Cortisol Reactivity: The Moderating Role of Suppression," and coauthored by Drs. Jeanette M. Bennett and Sara M. Levens, was the basis for Lydia G. Roos's selection as the recipient of the 2019 Psi Chi/APA Edwin B. Newman Graduate Research Award." (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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PMID:Psi Chi/APA Edwin B. Newman Graduate Research Award: Lydia G. Roos. 3182

Parents can influence children's emotional responses through direct and subtle behavior. In this study we examined how parents' acute stress responses might be transmitted to their 7- to 11-year-old children and how parental emotional suppression would affect parents' and children's physiological responses and behavior. Parents and their children (N = 214; Ndyads = 107; 47% fathers) completed a laboratory visit where we initially separated the parents and children and subjected the parent to a standardized laboratory stressor that reliably activates the body's primary stress systems. Before reuniting with their children, parents were randomly assigned to either suppress their affective state-hide their emotions from their child-or to act naturally (control condition). Once reunited, parents and children completed a conflict conversation and two interaction tasks together. We measured their sympathetic nervous system (SNS) responses and observed interaction behavior. We obtained three key findings: (a) suppressing mothers' SNS responses influenced their child's SNS responses; (b) suppressing fathers' SNS responses were influenced by their child's SNS responses; and (c) dyads with suppressing parents appeared less warm and less engaged during interaction than control dyads. These findings reveal that parents' emotion regulation efforts impact parent-child stress transmission and compromise interaction quality. Discussion focuses on short-term and long-term consequences of parental emotion regulation and children's social-emotional development. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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PMID:Keep it to yourself? Parent emotion suppression influences physiological linkage and interaction behavior. 3232 17

Stress disrupts a variety of neural processes, including reducing levels of brain-derived neurotrophic factor (BDNF) in the hippocampus. In contrast, exercise increases BDNF and is beneficial for health and cognition. Irisin is a myokine that is released into circulation during exercise. Although its main known functions are browning white adipose tissue and improving glucose homeostasis, Irisin also mediates the activation of an exercise-induced BDNF-mediated neuroprotective pathway in the hippocampus. Therefore, we tested the hypothesis that Irisin can counteract the deleterious effects of acute stress when directly injected into the hippocampus. To test our hypothesis, we used a 3-hr long physical restraint stress event in adult female and male mice. Acute stress resulted in sex-dependent increased anxiety-like behaviors and memory impairment in a combined open field/novel object recognition (OF/NOR) test, affecting male mice only. Moreover, acute stress also reduced skin temperature and body weight in both females and males. We then injected Irisin into the hippocampus via bilateral stereotaxic injection and repeated the acute stress paradigm and combined OF/NOR test. We found that Irisin partially blocked stress-induced anxiety-like behavior and memory impairment in male mice, while also preventing the reduction in skin temperature and body weight. In females Irisin only prevented the body weight reduction but showed no beneficial effects on neurobehaviors. Our results suggest a novel role for Irisin in counteracting acute stress-induced neurobehavioral and physiological abnormalities. Also, our results support the idea that exercise can be a potentially effective tool to promote the maintenance of healthy neural function. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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PMID:Hippocampal injection of the exercise-induced myokine irisin suppresses acute stress-induced neurobehavioral impairment in a sex-dependent manner. 3243 97