Tacana Tracey, Speck Bailey, Isenhour Jennifer, Conradt Elisabeth, Crowell Sheila E, Raby K Lee
Department of Psychology, University of Utah.
Department of Psychiatry and Behavioral Sciences, Duke University.
Infant Child Dev. 2024 Nov-Dec;33(6). doi: 10.1002/icd.2545. Epub 2024 Oct 1.
This study examined whether parental sensitivity during distressing and non-distressing mother-infant interactions predicts changes in young children's respiratory sinus arrhythmia (RSA) activity. Baseline RSA levels were collected from 83 children (49% female, 51% male) when children were 7 and 18 months old. Children's RSA reactivity and RSA recovery during the Still-Face paradigm were collected when children were 7 months and during the Strange Situation procedure at 18 months. Controlling for stability of RSA activity over time, maternal sensitivity during distressing interactions at 7 months predicted changes in children's baseline RSA levels (β = -.30) and children's RSA recovery (β = .25). Young children who experienced higher levels of sensitivity at 7 months had lower resting RSA levels and exhibited greater RSA recovery at 18 months. These results suggest that changes in young children's RSA activity are meaningfully related to their early caregiving experiences.
本研究考察了在痛苦和非痛苦的母婴互动中父母的敏感性是否能预测幼儿呼吸性窦性心律不齐（RSA）活动的变化。在儿童7个月和18个月大时，收集了83名儿童（49%为女性，51%为男性）的RSA基线水平。在儿童7个月大时的静脸范式以及18个月大时的陌生情境程序中，收集了儿童的RSA反应性和RSA恢复情况。在控制了RSA活动随时间的稳定性后，7个月大时痛苦互动中母亲的敏感性可预测儿童基线RSA水平的变化（β = -0.30）以及儿童的RSA恢复情况（β = 0.25）。在7个月大时经历更高敏感性水平的幼儿，其静息RSA水平较低，且在18个月大时表现出更大的RSA恢复。这些结果表明，幼儿RSA活动的变化与其早期的养育经历有显著关联。
