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. 2018 Jul;129:67-75.
doi: 10.1016/j.ijpsycho.2018.04.008. Epub 2018 Apr 19.

Psychopathology, Everyday Behaviors, and Autonomic Activity in Daily Life: An Ambulatory Impedance Cardiography Study of Depression, Anxiety, and Hypomanic Traits

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Free PMC article

Psychopathology, Everyday Behaviors, and Autonomic Activity in Daily Life: An Ambulatory Impedance Cardiography Study of Depression, Anxiety, and Hypomanic Traits

Sarah H Sperry et al. Int J Psychophysiol. .
Free PMC article

Abstract

Discrepancies regarding the link between autonomic nervous system (ANS) activity and psychopathology may be due in part to inconsistent measurement of non-psychological factors, including eating, drinking, activity, posture, and interacting with others. Rather than sources of noise, behaviors like being active and being with others may be the behavioral pathways that connect psychopathology symptoms to autonomic activity. The present study examined whether behaviors mediate the association of depression, anxiety, and hypomanic traits with ANS by using experience sampling methodology and ambulatory impedance cardiography. Participants (n = 49) completed measures of affect and one day of experience sampling and ambulatory impedance cardiography. The association of hypomanic traits with heart rate variability and heart rate was mediated by physical activity, and social activity mediated the association of depressive symptoms and respiration. These results highlight the importance of considering the pathways between psychopathology and ANS and the mediating role that everyday behaviors play.

Keywords: Ambulatory assessment; Ambulatory psychophysiology; Experience sampling methodology; Heart rate variability; Impedance cardiography; PEP; RMSSD.

Figures

Figure 1.
Figure 1.
Mediation model for hypomanic personality, physical activity, and RMSSD. Note. The regression coefficients are standardized; 95% confidence intervals are in brackets.
Figure 2.
Figure 2.
Mediation model for hypomanic personality, physical activity, and HR. Note. The regression coefficients are standardized; 95% confidence intervals are in brackets.
Figure 3.
Figure 3.
Mediation model for depression, social activity, and respiration rate. Note. The regression coefficients are standardized; 95% confidence intervals are in brackets.

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