Predicting developmental changes in internalizing symptoms: examining the interplay between parenting and...

Area of Science:

• Developmental Psychology
• Neuroendocrinology
• Child Psychiatry

Background:

• Internalizing symptoms, such as anxiety and depression, often emerge during the transition to adolescence.
• Parenting styles and physiological stress responses, like hypothalamic-pituitary-adrenal (HPA) axis reactivity, are implicated in child mental health.
• Understanding the interplay between early parenting, HPA axis function, and internalizing symptoms is crucial for early intervention.

Purpose of the Study:

• To investigate if parenting and HPA axis reactivity in middle childhood predict increases in internalizing symptoms during the transition to adolescence.
• To determine if HPA axis reactivity mediates the relationship between parenting and internalizing symptoms.
• To explore the long-term impact of early parenting on the physiological stress response system and subsequent internalizing symptoms.

Main Methods:

• Longitudinal study of 65 children assessed at ages 5, 7, and 11.
• Parenting behaviors (maternal warmth, induction) assessed via parent report at ages 5 and 11.
• HPA axis reactivity measured at age 7 using a laboratory stress task (cortisol response).
• Internalizing symptoms assessed via teacher reports at ages 5 and 11.

Main Results:

• High maternal warmth at age 5 predicted lower internalizing symptoms at age 11.
• Maternal warmth and induction at age 5 were associated with lower HPA axis reactivity at age 7.
• Greater HPA axis reactivity at age 7 predicted increased internalizing symptoms from age 5 to 11.
• The protective effect of maternal warmth on internalizing symptoms was partially mediated by lower cortisol reactivity.

Conclusions:

• Early parenting behaviors, specifically maternal warmth, influence the development of the HPA axis stress response system.
• Lower HPA axis reactivity, fostered by positive parenting, may buffer against the development of internalizing symptoms in preadolescence.
• These findings highlight the critical role of early parent-child interactions in shaping physiological stress regulation and promoting long-term mental well-being.