Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-35789
La Marca, R; Waldvogel, P; Thörn, H; Tripod, M; Wirtz, P H; Pruessner, J C; Ehlert, U (2011). Association between Cold Face Test-induced vagal inhibition and cortisol response to acute stress. Psychophysiology, 48(3):420-429.
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Low vagal function is related to several disorders. One possible underlying mechanism linking the vagus nerve and disorders is the HPA axis. Thirty-three healthy male subjects participated in a stress task, while heart rate (HR), respiratory sinus arrhythmia (RSA), salivary cortisol, and mood were assessed. Vagal function was determined using baseline, stress-induced inhibition, and Cold Face Test (CFT)-induced stimulation. The stress task induced a significant increase in cortisol and HR, a decrease in RSA, and a worsening of mood. A linear regression model with the time from CFT onset until maximum bradycardia as the independent variable explained 17.9% of the total variance in cortisol in response to the stressor (mood: 36.5%). The results indicate that a faster CFT response is associated with reduced cortisol increase and enhanced mood after acute stress. Our data support an inverse relationship between vagal function and the HPA axis.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||06 Faculty of Arts > Institute of Psychology|
|Deposited On:||02 Nov 2010 12:33|
|Last Modified:||27 Nov 2013 19:40|
|Citations:||Web of Science®|
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