Heart rate variability as a potential indicator of positive valence system disturbance: A proof of concept investigation
Heart rate variability as a potential indicator of positive valence system disturbance: A proof of concept investigation
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DOI:
10.1016/j.ijpsycho.2015.08.005
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发表时间:
2015-11-01
影响因子:
3
通讯作者:
Murray, Greg
中科院分区:
文献类型:
--
作者:
Gruber, June;Mennin, Douglas S.;Murray, Greg
One promising avenue toward a better understanding of the pathophysiology of positive emotional disturbances is to examine high-frequency heart rate variability (HRV-HF), which has been implicated as a potential physiological index of disturbances in positive emotional functioning. To date, only a few psychopathology relevant studies have systematically quantified HRV-HF profiles using more ecologically valid methods in everyday life. Using an experience-sampling approach, the present study examined both mean levels and intra-individual variability of HRV-HF - as well as comparison measures of cardiovascular arousal, sympathetic activity, and gross somatic movement - in everyday life, using ambulatory psychophysiological measurement across a six-day consecutive period among a spectrum of community adult participants with varying degrees of positive valence system disturbance, including adults with bipolar I disorder (BD; n = 21), major depressive disorder (MDD; n = 17), and healthy non-psychiatric controls (CTL; n = 28). Groups did not differ in mean HRV-HF, but greater HRV-HF instability (i.e., intra-individual variation in HRV-HF) was found in the BD compared to both MDD and CTL groups. Subsequent analyses suggested that group differences in HRV-HF variability were largely accounted for by variations in clinician-rated manic symptoms. However, no association was found between HRV-HF variability and dimensional measures of positive affectivity. This work provides evidence consistent with a quadratic relationship between HRV-HF and positive emotional disturbance and represents a valuable step toward developing a more ecologically valid model of positive valence system disturbances and their underlying psychophysiological mechanisms within an RDoC framework. (C) 2015 Published by Elsevier B.V.