Abstract
We investigated whether vagal tone, as assessed by heart rate variability (HRV), moderates the neural correlates of immune and physiological responses to acute stress. Participants with low and high baseline HRV underwent a reversal learning task as an acute stressor. Natural killer cells, norepinephrine, and adrenocorticotropic hormone in peripheral blood changed with acute stress in the high HRV group only. Activity in the prefrontal cortex and striatum correlated with the immune and physiological indices in the high HRV group. High vagal tone may reflect more flexible top-down brain regulation of immune and physiological activity.
Original language | English |
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Pages (from-to) | 28-36 |
Number of pages | 9 |
Journal | Journal of Neuroimmunology |
Volume | 260 |
Issue number | 1-2 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
Bibliographical note
Funding Information:This study was supported by a Health and Labor Sciences Research Grant on Research on Occupational Safety and Health from the Japan Ministry of Health, Labour, and Welfare (no. H17-RODO-5 ), and a Grant-in-Aid for Scientific Research on Innovative Areas (Research in a Proposed Research Area) 2010 (no. 4102-21119003 ) from the Ministry of Education, Culture, Sports, Science and Technology, Japan . The authors thank Dr. Tokiko Isowa, Ms. Naho Ichikawa, Dr. Kenta Kimura, Dr. Makoto Miyakoshi, Dr. Noriaki Kanayama, and Dr. Hiroki Murakami for technical supports.
Keywords
- Heart rate variability
- Natural killer cells
- Neuroimmunomodulation
- Positron emission tomography
- Vagus nerve
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology
- Neurology
- Clinical Neurology