title: Estimating time-varying RSA to examine psychophysiological linkage of marital dyads.
abstract: One of the primary tenets of polyvagal theory dictates that parasympathetic influence on heart rate, often estimated by respiratory sinus arrhythmia (RSA), shifts rapidly in response to changing environmental demands. The current standard analytic approach of aggregating RSA estimates across time to arrive at one value fails to capture this dynamic property within individuals. By utilizing recent methodological developments that enable precise RSA estimates at smaller time intervals, we demonstrate the utility of computing time-varying RSA for assessing psychophysiological linkage (or synchrony) in husband-wife dyads using time-locked data collected in a naturalistic setting.
authors: Psychology Department, University of North Carolina, Chapel Hill, North Carolina, USA.
authors: Kathleen M
authors: KM
authors: Gates
authors: Department of Human Development and Family Studies, The Pennsylvania State University, State College, Pennsylvania, USA.
authors: Lisa M
authors: LM
authors: Gatzke-Kopp
authors: Department of Mathematical Statistics, Lund University, Lund, Sweden.
authors: Maria
authors: M
authors: Sandsten
authors: Psychology Department, The Pennsylvania State University, State College, Pennsylvania, USA.
authors: Alysia Y
authors: AY
authors: Blandon
mesh_terms: D000328:Adult; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage / Q000523:psychology*; D010275:Parasympathetic Nervous System / Q000502:physiology*; D065809:Respiratory Sinus Arrhythmia / Q000502:physiology*
keywords: Psychophysiological linkage; RSA linkage; Respiratory sinus arrhythmia; Time-varying RSA estimates