A meta-analysis of heart rate variability and neuroimaging studies: implications for heart rate variability as a marker of stress and health.

Authors:
Julian F Thayer
Julian F Thayer
The Ohio State University
United States
Mats Fredrikson
Mats Fredrikson
Uppsala University
Sweden
John J Sollers
John J Sollers
National Institute on Aging
United States
Tor D Wager
Tor D Wager
Columbia University
United States

Neurosci Biobehav Rev 2012 Feb 8;36(2):747-56. Epub 2011 Dec 8.

Department of Psychology, The Ohio State University, 1835 Neil Avenue, Columbus, OH 43210, USA.

The intimate connection between the brain and the heart was enunciated by Claude Bernard over 150 years ago. In our neurovisceral integration model we have tried to build on this pioneering work. In the present paper we further elaborate our model and update it with recent results. Specifically, we performed a meta-analysis of recent neuroimaging studies on the relationship between heart rate variability and regional cerebral blood flow. We identified a number of regions, including the amygdala and ventromedial prefrontal cortex, in which significant associations across studies were found. We further propose that the default response to uncertainty is the threat response and may be related to the well known negativity bias. Heart rate variability may provide an index of how strongly 'top-down' appraisals, mediated by cortical-subcortical pathways, shape brainstem activity and autonomic responses in the body. If the default response to uncertainty is the threat response, as we propose here, contextual information represented in 'appraisal' systems may be necessary to overcome this bias during daily life. Thus, HRV may serve as a proxy for 'vertical integration' of the brain mechanisms that guide flexible control over behavior with peripheral physiology, and as such provides an important window into understanding stress and health.

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http://kinova.nu/index_htm_files/implications-for-heart-rate
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http://dx.doi.org/10.1016/j.neubiorev.2011.11.009DOI Listing

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February 2012
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