Palmer, Ali; Raby, K. Lee (University of Utah)
Faculty Advisor: Raby, Lee (College of Social & Behavioral Sciences, Developmental Psychology)
This study explores the relationship between maternal sensitivity and physiological reactivity in children across time. Maternal sensitivity is the appropriate response of a caregiver to their child's needs, while physiological reactivity describes the body's response to stressors. Physiological reactivity in this case is measured by Respiratory Sinus Arrhythmia (RSA), a measure of parasympathetic nervous system activity. Previous studies show a relationship between parental sensitivity and RSA during the same procedure; however, this relationship across time has yet to be explored. It was expected that maternal sensitivity would be associated with lower physiological reactivity to stress, or a lower RSA value. This relationship is plausible based on research about sensitive caregiving predicting attachment behavior later on.
Women were recruited during pregnancy for this study beginning in October 2018 through University of Utah associated clinics, flyers, brochures, and social media posts (Lin, et al., 2019). They then have the opportunity to continue through the study with visits at successive time points: a prenatal visit, a birth visit, a visit when the child is 7 months old, and a visit when the child is 18 months old. Data coded for maternal sensitivity was collected at 7 months during the Still Face Paradigm, a commonly used procedure for assessing infant reactivity. RSA data showing physiological reactivity was collected at 18 months during the Strange Situation Procedure, widely accepted as a measure of attachment security in infants.
Establishing the existence of the relationship between these two variables is an important first step toward helping children in less than ideal situations. This could lead to a greater knowledge of how to develop interventions, for example, with children or adolescents struggling with issues related to heightened physiological activity. Understanding these biological patterns could help them handle high levels of physiological reactivity in a productive way.