The “Pet Effect”

2015 ◽  
Vol 23 (5) ◽  
pp. 425-438 ◽  
Author(s):  
Evangeline A. Wheeler ◽  
Margaret E. Faulkner

The “pet effect,” whereby interaction with a companion animal reduces the physiological indices of stress, varies with respect to fear of animals, companion animal guardianship, type of companion animal, or types of stress. In this study, a non-clinical sample of 223 undergraduates underwent the Trier Social Stress Test (tsst) in order to investigate how interaction with a companion animal affected stress levels for people with different levels of trait anxiety, a variable not yet investigated in this paradigm. An index of trait anxiety was taken along with repeated measures of state anxiety, blood pressure, and heart rate. Overall results indicated that interaction with a companion dog reduced stress for all participants, with the effect being more pronounced for those high in trait anxiety.

2021 ◽  
Vol 31 (2) ◽  
pp. 167-176
Author(s):  
Amber J. Johnson ◽  
Guido G. Urizar Jr.

Background: The increasing prevalence of hypertension among young Black women warrants further exploration of hypertension risk factors in this population. Social cogni­tive pathways that increase hypertension risk have been understudied among Black women. Shame, an emotional response to social evaluative threats, may be important to understanding the contribution of social emotions to hypertension risk. The current study examined the association of internal­ized shame on systolic (SBP) and diastolic blood pressure (DPB) patterns of reactivity and recovery in a sample of Black women.Methods: Black women (N=32) aged 18-22 were recruited from a public uni­versity in August 2019 and January 2020. Participants completed the Internalized Shame Scale, Self-Esteem subscale, and the Perceived Stress Scale. All participants com­pleted the Trier Social Stress Test (TSST) and subsequent blood pressure readings were recorded at baseline and 1 min, 15 min, 30 min, 45 min, and 60 min post-TSST. Two separate repeated measures ANOVAs exam­ined time and group effects of low shame (ISS score ≤ 39.9) vs high shame (ISS score ≥ 40) on blood pressure reactivity patterns.Results: A significant effect of shame on DBP responses to the TSST was observed (P=.020). DBP for women in the low shame group peaked immediately following the TSST relative to baseline (M =81.2 mm Hg vs M =72.2 mm Hg) and remained stable during 60-minute recovery. DBP for women in the high shame group did not peak until 45 min post-TSST relative to baseline (M =84.2 mm Hg vs M =68.0 mm Hg) only slightly decreasing at 60 min post-TSST.Implications: These results highlight the need to further examine the role of shame on hypertension risk among young Black women.Ethn Dis. 2021;31(2):167-176; doi:10.18865/ed.31.2.167


Author(s):  
Sisitha Udara Jayasinghe ◽  
Sarah Janet Hall ◽  
Susan Jane Torres ◽  
Anne Isabella Turner

While the patterns of response within the sympatho-adrenal medullary (SAM) system and hypothalamo-pituitary adrenal (HPA) axis are interesting and important in their own accord, the overall response to acute psychological stress involves reactivity of both pathways We tested the hypothesis that consideration of the integrated response of these pathways may reveal dysregulation of the stress systems that is not evident when considering either system alone. Age matched lean and overweight/obese men were subjected to a Trier Social Stress Test and reactivity of the SAM system (salivary alpha amylase, systolic blood pressure, diastolic blood pressure and heart rate) and the HPA axis (salivary cortisol) were measured. Relative reactivity of SAM system and HPA axis was calculated as the ratio between the measures from each pathway. While analysis of reactivity of individual stress pathways showed no evidence of dysfunction in overweight/obese compared with lean men, analysis of HPA/SAM reactivity revealed significantly lower cortisol over systolic blood pressure (CoSBP) and cortisol over diastolic blood pressure (CoDBP) reactivity in overweight/obese compared with lean men. Other measures of HPA/SAM reactivity and all measures of SAM/HPA reactivity were unaltered in overweight/obese compared with lean men. These findings suggest that the cortisol response per unit of blood pressure response is blunted in men with elevated adiposity. Further, these findings support a notion of a coordinated overall approach to activation of the stress pathways with the degree of activation in one pathway being related to the degree of activation of the other.


2017 ◽  
Author(s):  
Emily K Lindsay ◽  
Shinzen Young ◽  
Joshua M Smyth ◽  
Kirk Warren Brown ◽  
J. David Creswell

Objective: Mindfulness interventions, which train practitioners to monitor their present-moment experience with a lens of acceptance, are known to buffer stress reactivity. Little is known about the active mechanisms driving these effects. We theorize that acceptance is a critical emotion regulation mechanism underlying mindfulness stress reduction effects. Method: In this three-arm parallel trial, mindfulness components were dismantled into three structurally equivalent 15-lesson smartphone-based interventions: (1) training in both monitoring and acceptance (Monitor+Accept), (2) training in monitoring only (Monitor Only), or (3) active control training (Coping control). 153 stressed adults (mean age = 32 years; 67% female; 53% white, 21.5% black, 21.5% Asian, 4% other race) were randomly assigned to complete one of three interventions. After the intervention, cortisol, blood pressure, and subjective stress reactivity were assessed using a modified Trier Social Stress Test. Results: As predicted, Monitor+Accept training reduced cortisol and systolic blood pressure reactivity compared to Monitor Only and control trainings. Participants in all three conditions reported moderate levels of subjective stress.Conclusions: This study provides the first experimental evidence that brief smartphone mindfulness training can impact stress biology, and that acceptance training drives these effects. We discuss implications for basic and applied research in contemplative science, emotion regulation, stress and coping, health, and clinical interventions.


2017 ◽  
Author(s):  
Emily K Lindsay ◽  
Shinzen Young ◽  
Joshua M Smyth ◽  
Kirk Warren Brown ◽  
J. David Creswell

Objective: Mindfulness interventions, which train practitioners to monitor their present-moment experience with a lens of acceptance, are known to buffer stress reactivity. Little is known about the active mechanisms driving these effects. We theorize that acceptance is a critical emotion regulation mechanism underlying mindfulness stress reduction effects. Method: In this three-arm parallel trial, mindfulness components were dismantled into three structurally equivalent 15-lesson smartphone-based interventions: (1) training in both monitoring and acceptance (Monitor+Accept), (2) training in monitoring only (Monitor Only), or (3) active control training (Coping control). 153 stressed adults (mean age = 32 years; 67% female; 53% white, 21.5% black, 21.5% Asian, 4% other race) were randomly assigned to complete one of three interventions. After the intervention, cortisol, blood pressure, and subjective stress reactivity were assessed using a modified Trier Social Stress Test. Results: As predicted, Monitor+Accept training reduced cortisol and systolic blood pressure reactivity compared to Monitor Only and control trainings. Participants in all three conditions reported moderate levels of subjective stress.Conclusions: This study provides the first experimental evidence that brief smartphone mindfulness training can impact stress biology, and that acceptance training drives these effects. We discuss implications for basic and applied research in contemplative science, emotion regulation, stress and coping, health, and clinical interventions.


2019 ◽  
Author(s):  
Meriah Lee DeJoseph ◽  
Eric D. Finegood ◽  
Cybele Raver ◽  
Clancy B. Blair

Stress induction paradigms are essential tools for studies investigating psychobiological mechanisms linking stress reactivity with mental and physical health outcomes, especially among youth growing up in high-stress contexts such as poverty. However, standardized stress paradigms aimed at measuring stress reactivity are limited to laboratory settings and have mostly been conducted in small samples of convenience. The aim of the current study is to present a version of the Trier Social Stress Test (TSST) adapted for administration in participants’ homes appropriate for administration in large-scale, population-based samples. We address issues related to the feasibility of administration and present preliminary evidence of the validity of the home-based TSST (TSST-H) in a subsample (n = 100) of adolescents (12-13 years) participating in the Family Life Project (N = 1,292). Measures of stress physiology included salivary cortisol, alpha amylase, and blood pressure, assessed at baseline, 5 minutes post, 20 minutes post, and 40 minutes post task. Importantly, administration of the TSST-H procedure was successful among 93% of our sample after accounting for participant refusals and significant distractions in the home. We also found preliminary evidence that the TSST-H elicited an autonomic response, reflected by statistically significant increases in salivary alpha amylase and diastolic blood pressure post task. Our initial assessment indicates that the TSST-H can be effectively implemented in field based settings with hard to reach populations.


Psych ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 171-183
Author(s):  
Isabelle K. Sequeira ◽  
Addie S. Longmire ◽  
Naomi J. McKay

The Trier Social Stress Test (TSST) is a psychosocial stressor that effectively stimulates the stress response but is labor and time intensive. Although other psychological stressors are often used experimentally, none are known to comparably elevate stress. Two stressors that may potentially elevate stress are a singing task (ST) and unsolvable anagrams, but there are not enough data to support their effectiveness. In the current experiment, 53 undergraduate males and females (mean age = 21.9 years) were brought into the laboratory, and baseline blood pressure, heart rate, self-rated anxiety, and salivary cortisol were recorded. Then, participants were randomly assigned to one of three stress conditions: TSST (n = 24), ST (n = 14), or an unsolvable anagram task (n = 15). Stress measures were taken again after the stressor and during recovery. The TSST significantly elevated systolic blood pressure, diastolic blood pressure, heart rate, and self-rated anxiety from pre-stress levels, replicating its stress-inducing properties. However, the ST and unsolvable anagrams only elevated heart rate, indicating that these methods are not as able to stimulate physiological or psychological stress. Overall, results indicate that out of these three laboratory stressors, the TSST clearly engages the stress response over the ST or unsolvable anagrams.


2021 ◽  
Vol 10 (21) ◽  
pp. 5070
Author(s):  
Anna K. Koch ◽  
Margarita Schöls ◽  
Heidemarie Haller ◽  
Dennis Anheyer ◽  
Zehra Cinar ◽  
...  

Objective: The present study presents long-term results of stress-related outcomes of a prospective RCT that evaluated effects of a ten-week comprehensive lifestyle-modification program (LSM) in patients with inactive ulcerative colitis (UC). In addition, exploratory results of a sub-study applying a laboratory stress protocol (Trier Social Stress Test; TSST) conducted within the RCT are reported. Methods: Ninety-seven patients with inactive UC were randomized to LSM (n = 47; 50.28 ± 11.90 years; 72.3% female) or self-care (n = 50; 45.54 ± 12.49 years; 70% female). Patients’ perceived stress, anxiety, flourishing and depression were assessed at week 0, 12, 24 and 48. After the respective intervention, 16 female patients (LSM: n = 8; 44.6 ± 14.3 years; Self-care: n = 8; 49.25 ± 4.30 years) additionally underwent the TSST. State anxiety, blood pressure, pulse, complete blood counts, adrenocorticotropic hormone (ACTH), cortisol, adrenalin and noradrenalin were measured at baseline (−15 min), stress (+10 min), recovery1 (+20 min) and recovery2 (+55 min). Statistical significance was set at p < 0.05; for the exploratory sub-study using the TSST, p-values < 0.10 were considered significant. Results: Patients’ perceived stress declined significantly after the LSM (p < 0.001) compared with control. This lasted until week 24 (p = 0.023) but did not persist until week 48 (p = 0.060). After 48 weeks, patients’ flourishing was significantly increased compared with control (p = 0.006). In response to the TSST, significant group differences were evident for pulse (p = 0.015), adrenaline (p = 0.037) and anxiety (p = 0.066). After 55 min, group differences were found for ACTH (p = 0.067) and systolic blood pressure (p = 0.050). Conclusions: LSM has a medium-term positive effect on perceived stress. First indications show that it is promising to investigate these effects further under laboratory conditions. It is also desirable to find out how the effects of LSM can be maintained in the long term.


2021 ◽  
Author(s):  
Caitlin Marie DuPont ◽  
Sarah Pressman ◽  
Rebecca G Reed ◽  
Anna Marsland ◽  
Stephen N. Manuck ◽  
...  

In response to the COVID-19 pandemic, prior studies have modified the Trier Social Stress Test to be conducted remotely. The current report aimed to extend these studies to test whether a remote Trier Social Stress Test (rTSST) can elicit (a) affective, (b) blood pressure, and (c) heart rate responses relative to a control condition and whether these responses were reliable when assessed one week later. Participants (N = 99, 19.7 ± 3.5 years, 55% female) were randomized to a control or stress condition. Controls completed easier versions of the tasks with a single, friendly researcher. Stress participants performed more difficult versions of the task in front of two judges who participants believed were rating their performance. Blood pressure and heart rate were measured every two minutes throughout, while affect was assessed at baseline, after the final task, and following recovery. The rTSST was feasible to administer with minimal technical issues reported. Results suggest that lower positive affect and higher negative affect were reported during the tasks in the stress condition relative to controls. Similarly, stress participants had higher cardiovascular responses during the tasks relative to controls, except that blood pressure was not elevated during mental arithmetic in stress participants relative to controls. Cardiovascular responses demonstrated good test-retest reliability when assessed one week later, especially when computed using area under the curve methods. Overall, a rTSST can be used to elicit affective and cardiovascular reactivity and provides an opportunity to include participants previously unreachable for in-person laboratory procedures.


2020 ◽  
Vol 32 (5) ◽  
pp. 1799-1809
Author(s):  
Anna M. Parenteau ◽  
Nicholas V. Alen ◽  
LillyBelle K. Deer ◽  
Adam T. Nissen ◽  
Alison T. Luck ◽  
...  

AbstractParents serve important functions in regulating children's responses to stress and challenge. However, the parental characteristics that modulate the effectiveness of parents as stress buffers remain to be fully characterized. To address this gap, this study examined parental characteristics and behaviors that may explain variation in parents’ ability to buffer cortisol responses to acute stress of 180 children (ages 9–11 years old, M = 9.9 years, SD = .58). Children were randomly assigned to either participate in a public speaking task, the Trier Social Stress Test – modified for children (TSST-M) or a control condition. Children in the TSST-M condition were randomly assigned to prepare for the public speaking task either with their parent (N = 59) or alone (N = 60), whereas 61 children were assigned to the control condition (no TSST-M). We found that parental education moderated the effect of condition on children's responses to acute stress. Children whose parents had lower levels of education exhibited reduced cortisol responses in the parent condition compared to the alone condition, showing a buffered pattern of reactivity. In contrast, children of parents with high levels of education displayed higher cortisol reactivity in the parent condition compared to the alone and control conditions. Parental education was also positively associated with higher levels of state anxiety within the parent condition. These results suggest that highly educated parents may emphasize performance over comfort, amplifying their children's state anxiety and cortisol responses to a public performance.


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