title: Emotion suppression moderates the quadratic association between RSA and executive function.
abstract: There is uncertainty about whether respiratory sinus arrhythmia (RSA), a cardiac marker of adaptive emotion regulation, is involved in relatively low or high executive function performance. In the present study, we investigated (a) whether RSA during rest and tasks predict both relatively low and high executive function within a larger quadratic association among the two variables, and (b) the extent to which this quadratic trend was moderated by individual differences in emotion regulation. To achieve these aims, a sample of ethnically and socioeconomically diverse women self-reported reappraisal and emotion suppression. They next experienced a 2-min resting period during which electrocardiogram (ECG) was continually assessed. In the next phase, the women completed an array of executive function and nonexecutive cognitive tasks while ECG was measured throughout. As anticipated, resting RSA showed a quadratic association with executive function that was strongest for high suppression. These results suggest that relatively high resting RSA may predict poor executive function ability when emotion regulation consumes executive control resources needed for ongoing cognitive performance.
authors.affiliation: Department of Psychology, Virginia Tech, Blacksburg, Virginia, USA.
authors.forename: Derek P
authors.initials: DP
authors.lastname: Spangler
authors.affiliation: Department of Psychology, Virginia Tech, Blacksburg, Virginia, USA.
authors.forename: Martha Ann
authors.initials: MA
authors.lastname: Bell
authors.affiliation: Department of Psychology, Virginia Tech, Blacksburg, Virginia, USA.
authors.forename: Kirby
authors.initials: K
authors.lastname: Deater-Deckard
mesh_terms: D000328:Adult; D004562:Electrocardiography; D004644:Emotions / Q000502:physiology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D009483:Neuropsychological Tests; D011340:Problem Solving / Q000502:physiology; D065809:Respiratory Sinus Arrhythmia / Q000502:physiology*
keywords: Emotion suppression; Executive function; Respiratory sinus arrhythmia