Psychoneuroendocrinology 2007 Jun 11;32(5):565-74. Epub 2007 May 11.
Department of Psychology, Clinical Psychology and Psychotherapy, University of Zurich, Binzmuhlestrasse 14/Box 26, CH-8050 Zurich, Switzerland.
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Psychoneuroendocrinology 2004 Jan;29(1):83-98
Department of Behavioural Sciences, Swiss Federal Institute of Technology (ETH), Turnerstr. 1, CH-8092, Zürich, Switzerland.
Data from five independent studies were reanalyzed in order to investigate the impact of age and gender on HPA axis responses to an acute psychosocial laboratory stress task. The total sample consisted of 102 healthy subjects with 30 older adults (mean age: 67.3 y), 41 young adults (mean age: 23. Read More
Biol Psychiatry 2003 Dec;54(12):1389-98
Department of Clinical Psychology, University of Zürich, Zürich, Switzerland.
Background: The presence of social support has been associated with decreased stress responsiveness. Recent animal studies suggest that the neuropeptide oxytocin is implicated both in prosocial behavior and in the central nervous control of neuroendocrine responses to stress. This study was designed to determine the effects of social support and oxytocin on cortisol, mood, and anxiety responses to psychosocial stress in humans. Read More
J Neuroendocrinol 2006 Jul;18(7):494-503
Department of Neurology and Neurosurgery, Department of Psychiatry, McGill University, Douglas Hospital Research Centre, Montreal, Canada.
Rat studies show that hypothalamic-pituitary-adrenal (HPA) responsiveness to physical and emotional stressors is attenuated during lactation, although situations evoking pup endangerment can supersede this phenomenon. In the human population, blunted cortisol responses are seen in primiparous breastfeeding compared to bottlefeeding mothers following physical stress, but not after psychosocial stress. It is currently unknown whether stressor salience (child-related versus nonrelated stressor) has a differential effect on cortisol reactivity as a function of infant feeding choice and whether HPA responses to stress could be modified by parity. Read More
Psychoneuroendocrinology 2004 Sep;29(8):983-92
Department of Behavioral Sciences, Swiss Federal Institute of Technology (ETH), Turnerstr. 1, CH-8092 Zürich, Switzerland.
There is evidence showing that HPA axis responses to pharmacological provocation depend on time of day with larger cortisol responses in the afternoon and evening compared to the morning hours. However, it is still unknown whether HPA axis responses to psychological stress are affected by time of day and whether they can be assessed with equal reliability in the morning and afternoon, respectively. The present reanalysis is based on five independent studies conducted in the same laboratory by and. Read More