HomeHealth articlesbody painHow Are Pain Experiences and Gene Activity in the Brain Related to Children and Parents?

Can Mom’s Love Ease Infant’s Pain, Change Gene Activity in the Baby Brain?

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A mother’s love is comforting and transformative, shaping the infants’ genes and brain in ways that foster health and resilience.

Medically reviewed by

Dr. Faisal Abdul Karim Malim

Published At February 27, 2024
Reviewed AtFebruary 27, 2024

Introduction:

Extensive research has explored the emotional bond between a mother and her infant. Babies are born reliant on adults for survival, yet they possess traits that naturally attract caregiving. Establishing a meaningful connection with the mother is crucial for the child’s development, contributing to self-esteem, trust in others, and a sense of competence. The quality of this relationship hinges on the alignment of the infant’s needs, the mother’s provision of nurturing experiences, and the emotional cues as their primary means of communication, making emotional exchanges their ‘first intricate language.’ The concept of emotional availability aims to assess how both mother and infant are attuned and capable of responding to each other’s emotional signals. Additionally, since emotional bonds evolve, it is vital to adopt a developmental perspective to comprehend the processes influencing different paths to positive or negative outcomes.

What Is the Association Between the Parents Behavior and the Baby’s Development and Pain?

Recent research has begun to uncover connections between parental behaviors and children’s experiences of pain. These intergenerational pain relationships have been observed both in laboratory and clinical settings. Studies have indicated that children dealing with chronic pain are likelier to have parents who also experience chronic pain, and parents with chronic pain tend to report heightened sensitivity to pain in their children. These relationships likely stem from a combination of factors, including the parent’s history of pain, psychological well-being, and family dynamics.

In various studies involving chronic pain conditions such as juvenile arthritis and parental pain history, there have been associations between the severity of a parent’s current bodily pain and the level of pain experienced by their child. Research has also found links between child fibromyalgia and multiple chronic pain conditions in parents, as well as child-mother abdominal pain and child-parent headaches and migraines.

Laboratory investigations have shown that parental behavior can have differing effects on boys and girls regarding their pain responses. For example, one study found a connection between maternal behavior and girls’ responses to cold pressor pain but not in boys. Another study revealed significant gender differences in how family pain history relates to pain episodes and sensitivity to experimental thermal pain, with females showing stronger associations.

Despite these findings, sex-specific family relationships have not received much attention in pediatric pain studies. It appears that females are more sensitive to familial pain models than males. There is also a suggestion that mothers may play a role in their daughters’ pain experiences, while fathers may have a greater impact on their sons’ pain experiences.

The early postnatal period is critical for an infant’s development, particularly regarding emotional and cognitive growth. Research has consistently highlighted the significance of the mother-infant interaction during this period. Bowlby’s social attachment theory emphasizes the pivotal role of the mother as the primary social influence mediating the impact of the external environment on the infant. Maternal interactions during this early phase can induce lasting changes in the infant’s brain, which affect how they respond to their environment throughout their life.

These enduring effects of early-life experiences can be advantageous in adapting to real-life situations. They exhibit two sides: positive early maternal care is linked to resilience against affective disorders, while adverse conditions during infancy, like poverty, maternal substance abuse, or depression, are associated with reduced maternal care and increased vulnerability to mental health issues across the lifespan. Such early-life circumstances have also been connected to cognitive decline in later life. Studies on institutionally reared children further highlight the link between impoverished care and cognitive and emotional deficits, which can somewhat be reversed through fostering.

While these findings underscore the strong connection between early maternal interaction and cognitive function and resilience or vulnerability to mood disorders, establishing causality in human studies is challenging. Some reports are retrospective, while prospective longitudinal studies must consider the influence of genetic factors on early-life experiences and predispositions of affective disorders like depression.

Can a Mother’s Love Ease an Infant’s Pain?

Research findings suggest that Skin-to-Skin contact (SSC) between a mother and her child positively impacts their relationship during infancy and continues to benefit them into middle childhood. The release of oxytocin, a hormone and neuropeptide, during SSC is believed to mediate these effects.

During SSC, the baby, wearing only a diaper, is placed on the mother’s bare chest to ensure direct skin-to-skin contact. This contact promotes the release of oxytocin in both the mother and the infant. Oxytocin is associated with feelings of calmness, bonding, and stress reduction. The physical contact and the sound of the mother’s heartbeat mimic sensations the infant experiences before birth, further reducing pain and stress.

SSC offers various advantages for an infant’s post-birth neuro-physical adjustments. Previous studies have demonstrated that newborns, whether premature or full-term, who experience SSC with their mothers exhibit better and more stable physiological functioning compared to those who do not. SSC helps regulate the newborn’s temperature, heart rate, respiration, and gastrointestinal adaptation. Furthermore, SSC infants sleep better, cry less, and display reduced pain reactions during routine hospital procedures.

While the effects of SSC on newborns’ physiological adjustments are well-documented, its influence on the mother, the infant after the newborn period, and the ongoing mother-child relationships has received less research attention. An infancy study tracked mothers and their full-term infants for the first three months of the infants’ lives, examining how SSC during the first month influenced maternal depressive symptoms, physiological stress, mothers’ ability to maintain breastfeeding, and infants’ responsiveness to their mothers.

Oxytocin’s Role: Oxytocin, a hormone and neurotransmitter, plays a significant role in developing the mother-infant relationship. It is produced in the hypothalamus and released into the bloodstream and the brain, triggering coordinated responses. Oxytocin helps reduce stress by lowering activity in the hypothalamic-pituitary-adrenal axis, leading to decreased cortisol levels. It also shifts the autonomic nervous system activity from the sympathetic to the parasympathetic part, promoting a sense of calmness. External administration of oxytocin has been found to enhance positive social interactions and reduce stress.

Gentle sensory stimulations, particularly in the chest area, can stimulate oxytocin release, leading to similar positive reactions. Oxytocin levels increase with touch, gentle pressure, and warmth during skin-to-skin contact (SSC) and breastfeeding. In SSC, the rise in oxytocin in one individual of the pair influences an increase in the other, creating synchronized responses that foster social connectedness.

Mother’s affectionate behaviors, such as gazing, touching, and using facial and vocal expressions, are influenced by a combination of physiological, psychological, and social factors that affect infants’ responsiveness to their mothers. The close physical contact between the mother and infant during SSC helps mothers recognize and become familiar with their infants’ emotional cues while making infants more attentive to their mothers’ social cues. Mothers sensitive to their infants’ emotional signals tend to interact more positively with their babies, leading to greater engagement. This sensitivity of mothers to their infants and vice versa is further enhanced by oxytocin, contributing to the development of the mother-infant relationship as a psycho-biological process.

Conclusion:

The nurturing love and care mothers provide profoundly impact infants, extending beyond mere emotional support. Scientific studies suggest that maternal love can alleviate an infant’s pain and even lead to changes in gene activity within the brain. This demonstrates the powerful influence of the mother-infant bond on the child’s well-being and development.

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Dr. Faisal Abdul Karim Malim
Dr. Faisal Abdul Karim Malim

Pediatrics

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