scholarly journals How integrated are behavioral and endocrine stress response traits? A repeated measures approach to testing the stress-coping style model

2015 ◽  
Vol 5 (3) ◽  
pp. 618-633 ◽  
Author(s):  
Kay Boulton ◽  
Elsa Couto ◽  
Andrew J. Grimmer ◽  
Ryan L. Earley ◽  
Adelino V. M. Canario ◽  
...  
Keyword(s):  
Stress Response ◽  
Repeated Measures ◽  
Coping Style ◽  
Stress Coping ◽  
Endocrine Stress Response ◽  
Response Traits

scholarly journals Differences in stress reactivity between zebrafish with alternative stress coping styles

2019 ◽  
Vol 6 (5) ◽  
pp. 181797 ◽  
Author(s):  
Ryan Y. Wong ◽  
Jeffrey French ◽  
Jacalyn B. Russ
Keyword(s):  
Stress Response ◽  
Stress Reactivity ◽  
Coping Styles ◽  
Whole Body ◽  
Stress Coping ◽  
Time Points ◽  
Endocrine Stress Response ◽  
Depth Preference ◽  
Neuroendocrine Responses ◽  
Cortisol Levels

Animals experience stress in a variety of contexts and the behavioural and neuroendocrine responses to stress can vary among conspecifics. The responses across stressors often covary within an individual and are consistently different between individuals, which represent distinct stress coping styles (e.g. proactive and reactive). While studies have identified differences in peak glucocorticoid levels, less is known about how cortisol levels differ between stress coping styles at other time points of the glucocorticoid stress response. Here we quantified whole-body cortisol levels and stress-related behaviours (e.g. depth preference, movement) at time points representing the rise and recovery periods of the stress response in zebrafish lines selectively bred to display the proactive and reactive coping style. We found that cortisol levels and stress behaviours are significantly different between the lines, sexes and time points. Further, individuals from the reactive line showed significantly higher cortisol levels during the rising phase of the stress response compared with those from the proactive line. We also observed a significant correlation between individual variation of cortisol levels and depth preference but only in the reactive line. Our results show that differences in cortisol levels between the alternative stress coping styles extend to the rising phase of the endocrine stress response and that cortisol levels may explain variation in depth preferences in the reactive line. Differences in the timing and duration of cortisol levels may influence immediate behavioural displays and longer lasting neuromolecular mechanisms that modulate future responses.

Endocrine stress response and myocardial outcome under balanced anesthesia with sevoflurane or TIVA with propofol in patients undergoing CABG

2007 ◽  
Vol 44 (3) ◽  
pp. 166-177 ◽  
Author(s):  
M. Winterhalter ◽  
H. A. Adams ◽  
T. Engels ◽  
N. Rahe-Meyer ◽  
J. Zuk ◽  
...  
Keyword(s):  
Stress Response ◽  
Endocrine Stress Response ◽  
Balanced Anesthesia

scholarly journals Npas4a expression in the teleost forebrain is associated with stress coping style differences in fear learning

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Matthew R. Baker ◽  
Ryan Y. Wong
Keyword(s):  
Neural Plasticity ◽  
Coping Style ◽  
Molecular Mechanisms ◽  
Conditioned Fear ◽  
Coping Styles ◽  
Brain Regions ◽  
Contextual Fear Conditioning ◽  
Fear Learning ◽  
Stress Coping ◽  
Contextual Fear

AbstractLearning to anticipate potentially dangerous contexts is an adaptive behavioral response to coping with stressors. An animal’s stress coping style (e.g. proactive–reactive axis) is known to influence how it encodes salient events. However, the neural and molecular mechanisms underlying these stress coping style differences in learning are unknown. Further, while a number of neuroplasticity-related genes have been associated with alternative stress coping styles, it is unclear if these genes may bias the development of conditioned behavioral responses to stressful stimuli, and if so, which brain regions are involved. Here, we trained adult zebrafish to associate a naturally aversive olfactory cue with a given context. Next, we investigated if expression of two neural plasticity and neurotransmission-related genes (npas4a and gabbr1a) were associated with the contextual fear conditioning differences between proactive and reactive stress coping styles. Reactive zebrafish developed a stronger conditioned fear response and showed significantly higher npas4a expression in the medial and lateral zones of the dorsal telencephalon (Dm, Dl), and the supracommissural nucleus of the ventral telencephalon (Vs). Our findings suggest that the expression of activity-dependent genes like npas4a may be differentially expressed across several interconnected forebrain regions in response to fearful stimuli and promote biases in fear learning among different stress coping styles.

Habitat type influences endocrine stress response in the degu (Octodon degus)

2013 ◽  
Vol 186 ◽  
pp. 136-144 ◽  
Author(s):  
Carolyn M. Bauer ◽  
Nicholas K. Skaff ◽  
Andrew B. Bernard ◽  
Jessica M. Trevino ◽  
Jacqueline M. Ho ◽  
...  
Keyword(s):  
Stress Response ◽  
Habitat Type ◽  
Octodon Degus ◽  
Endocrine Stress Response
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