Related Experiment Video
Updated: Aug 5, 2026
09:39
The Trier Social Stress Test Protocol for Inducing Psychological Stress
Published on: October 19, 2011
Temperament and hypothalamic-pituitary-adrenal axis function in healthy adults
Audrey R Tyrka1, Andrea F Mello, Marcelo F Mello
1Mood Disorders Research Program and Laboratory for Clinical Neuroscience, Butler Hospital, 345 Blackstone Road, Providence, RI 02906, USA. audrey_tyrka@brown.edu
Psychoneuroendocrinology
|August 16, 2006
Summary
Novelty seeking temperament is linked to lower cortisol levels, suggesting a connection between personality traits and the stress response system. This may offer insights into mood and anxiety disorders.
Area of Science:
- Neuroscience
- Psychiatry
- Endocrinology
Background:
- Behavioral inhibition and neuroticism are associated with mood and anxiety disorders.
- Hypothalamic-pituitary-adrenal (HPA) axis hyperactivity is observed in depression and inhibited temperaments.
- Previous research linked HPA hyperactivity to neuroticism in adults.
Purpose of the Study:
- To investigate the association between temperament and hypothalamic-pituitary-adrenal (HPA) axis function in healthy adults.
- To explore how personality traits relate to the body's stress response system.
Main Methods:
- Thirty-one healthy adults participated.
- Temperament was assessed using the Tridimensional Personality Questionnaire (TPQ).
- Hypothalamic-pituitary-adrenal (HPA) axis function was evaluated using the dexamethasone/corticotropin-releasing hormone (Dex/CRH) test.
Main Results:
- Novelty Seeking temperament showed an inverse relationship with plasma cortisol levels during the Dex/CRH test.
- Harm Avoidance and Reward Dependence temperament traits were not significantly associated with cortisol responses.
- These associations remained significant after controlling for psychiatric symptoms and history of stress or maltreatment.
Conclusions:
- Findings support previous reports linking specific temperament factors to HPA axis hyperactivity.
- Further research is needed to confirm these results and explore the role of HPA axis dysfunction in personality-related mood and anxiety disorders.
More Related Videos
Related Concept Videos
01:37Hypothalamic-Pituitary Axis
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
01:17Anatomy of the Adrenal Glands
The adrenal or supra-renal glands, situated above the kidneys and aligned with the twelfth rib, are paired pyramid-shaped structures crucial for the body's stress response. During stress, these glands secrete hormones vital for adaptive physiological reactions.
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
01:31Hormones of the Adrenal Glands
Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
01:27Adrenal Gland Disorders
Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
01:24Physiological Foundation of Stress
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
Role of the Sympathetic Nervous System
Adrenaline triggers the...
01:19Cushing Syndrome II: Pathophysiology
Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...