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An Examination of Cardiac Vagal Control Indices and Cognitive Stress Appraisal in Cigarette Smokers

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Abstract

Identifying factors that influence how individuals who smoke cigarettes respond to stress is important as stress is a risk factor for smoking and its maintenance. This study examined the modulatory role of cardiac vagal control (CVC), a physiological correlate of self-regulation, on cognitive stress appraisal processes of adults who smoke. Sixty daily cigarette smokers were randomized to receive positive or negative feedback during a modified Trier Social Stress Test. Pre- and post-task stress appraisals were assessed and resting and reactivity CVC measures were computed. Moderated regression models assessed if the relation between feedback condition and post-task stress appraisal varied as a function of CVC. We hypothesized that participants receiving negative feedback would report greater post-task stress appraisal compared to participants receiving positive feedback, and the strength of the effect of both feedback groups would be greater at higher levels of CVC. All models showed significant main effects of feedback condition (b =  − 0.42, p = 0.01; b =  − 0.45, p = 0.01) on post-task stress appraisal: participants receiving negative feedback reported greater post-task stress appraisal. No significant main or interactive effects of CVC and feedback condition on post-task stress appraisal were observed. This study demonstrates that stress appraisals of daily cigarette smokers are sensitive to social feedback, but are not moderated by individual differences in CVC. Future investigations are needed to clarify whether this finding is explained by smoking-specific impairments in CVC as well as the distinct and interactive effects of physiological and psychological processes implicated in stress and smoking risk.

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Notes

  1. Although the samples’ average respiration rate for the baseline and dot-tracking recording periods were not significantly correlated with either CVC at rest or CVC reactivity, respectively, we ran additional analyses that included each respiration rate variable as an additional covariate. This decision was based on past work showing the effects of respiration rate and lnHF values (Shaffer & Ginsberg, 2017) Across all re-computed models, the average respiration rate variables had no significant effect on post-task stress appraisal (all ps > 0.05). As such, we did not covary for respiration rate in our final models given the current analyses were already slightly underpowered.

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Funding

This work was funded by the National Institute on Drug Abuse (R03 DA041556-01A1) awarded to the last author.

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Contributions

Authors TML, DEM, and WBM developed the original study design and acquired funding to support data collection. Authors HRB, DEM, WBM and TML contributed to the literature review and manuscript preparation. Authors HRB and TML completed statistical analyses. All authors have contributed to and approved the final manuscript.

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Correspondence to Hannah R. Brinkman.

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The authors have no relevant financial or non-financial interests to disclose.

Ethical Approval

All study procedures were reviewed and approved by the Rutgers University Institutional Review Board and adhere to the tenets of the Declaration of Helsinki.

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Informed consent was obtained from all individual participants included in this study.

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Brinkman, H.R., McCarthy, D.E., Mendes, W.B. et al. An Examination of Cardiac Vagal Control Indices and Cognitive Stress Appraisal in Cigarette Smokers. Appl Psychophysiol Biofeedback 48, 97–107 (2023). https://doi.org/10.1007/s10484-022-09556-0

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  • DOI: https://doi.org/10.1007/s10484-022-09556-0

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