Experimental manipulation of maternal proximity during short sequences of sleep and infant calming response

From co-regulation to self-regulation: Maternal soothing strategies and self-efficacy in relation to maternal reports of infant regulation at 3 and 7 months

This study, conducted in Germany, examines the role of maternal soothing strategies to explain the association of maternal self-efficacy with infant regulation (crying and sleeping behavior). Questionnaire data of 150 mothers, living in Germany, with mixed ethnic and educational backgrounds were collected when infants were 3 and 7 months old. Two types of maternal soothing strategies were distinguished: close soothing, involving close physical and emotional contact, and distant soothing, involving physical and emotional distancing from the infant. A cross-sectional SEM at 3 months indicated that maternal self-efficacy is associated with reported infant regulation through distant soothing strategies. Low maternal self-efficacy was associated with frequent maternal use of distant soothing, which in turn was related to reported infant regulation problems, that is, non-soothability and greater crying frequency. Frequent use of close soothing was associated with reported infant sleeping behavior, that is, frequent night-time awakenings. A longitudinal SEM further indicated that the effects of close soothing persisted at least until the infants' age of 7 months. The study showed how low maternal self-efficacy, increased use of distant soothing, and reported early infant regulation problems are intertwined and that, due to their persisting positive effect on infant soothability, close soothing better supports infant development.

Integrative Individuation: An Alternative To The Separation-Individuation Model

An alternative to Mahler's separation-individuation model of child development is presented to explain differences in the development and experience of a sense of self in Indian culture and other cultures where the Western sense of individual selfhood is not seen as the goal of maturity and adulthood. In the absence of such a formulation, called here integrative individuation, the familial and relational experience of people from non-Western cultures is often misunderstood and pathologized by clinicians. Features of this non-Western sense of self include looser boundaries, different relational priorities, and greater tolerance regarding personal space. Though these differences have been commented on by scholars, a detailed developmental model has not previously been formulated.

Evidence Base for 2022 Updated Recommendations for a Safe Infant Sleeping Environment to Reduce the Risk of Sleep-Related Infant Deaths

Every year in the United States, approximately 3500 infants die of sleep-related infant deaths, including sudden infant death syndrome (SIDS) (International Statistical Classification of Diseases and Related Health Problems 10th Revision [ICD-10] R95), ill-defined deaths (ICD-10 R99), and accidental suffocation and strangulation in bed (ICD-10 W75). After a substantial decline in sleep-related deaths in the 1990s, the overall death rate attributable to sleep-related infant deaths have remained stagnant since 2000, and disparities persist. The triple risk model proposes that SIDS occurs when an infant with intrinsic vulnerability (often manifested by impaired arousal, cardiorespiratory, and/or autonomic responses) undergoes an exogenous trigger event (eg, exposure to an unsafe sleeping environment) during a critical developmental period. The American Academy of Pediatrics recommends a safe sleep environment to reduce the risk of all sleep-related deaths. This includes supine positioning; use of a firm, noninclined sleep surface; room sharing without bed sharing; and avoidance of soft bedding and overheating. Additional recommendations for SIDS risk reduction include human milk feeding; avoidance of exposure to nicotine, alcohol, marijuana, opioids, and illicit drugs; routine immunization; and use of a pacifier. New recommendations are presented regarding noninclined sleep surfaces, short-term emergency sleep locations, use of cardboard boxes as a sleep location, bed sharing, substance use, home cardiorespiratory monitors, and tummy time. In addition, additional information to assist parents, physicians, and nonphysician clinicians in assessing the risk of specific bed-sharing situations is included. The recommendations and strength of evidence for each recommendation are published in the accompanying policy statement, which is included in this issue.

Validation of an Instrument Assessing Certified Nurse Midwives' Attitudes toward Breastsleeping

To date, attitudes towards breastsleeping among certified nurse-midwives caring for post-partum women are not well known. This study describes the validation procedures of two instruments assessing the attitudes of certified nurse-midwives (CNMs) towards breastsleeping. These tools were validated using an 18-item survey administered to a convenience sample of certified nurse-midwives. Participating CNMs were recruited for anonymous participation in an online survey in September-November of 2019. Factor analysis and parallel analysis each revealed a two-factor solution, suggesting that there were two main concepts representing the attitudes of certified nurse-midwives towards breastsleeping; breastsleeping safety and breastfeeding experience. Statistically significant differences for mean breastsleeping safety scores were noted by age group, place of practice, and US geographical region. This article is protected by copyright. All rights reserved.

Using complexity science to understand the role of co-sleeping (bedsharing) in mother-infant co-regulatory processes

Human infants spend most of their time sleeping, but over the first few years of life their sleep becomes regulated to coincide more closely with adult sleep (Galland et al., 2012; Paavonen et al., 2020). Evidence shows that co-sleeping played a role in the evolution of infant sleep regulation, as it is part of an ancient behavioral complex representing the biopsychosocial microenvironment in which human infants co-evolved with their mothers through millions of years of human history (Ball, 2003; McKenna 1986, 1990). This paper is a conceptual, interdisciplinary, integration of the literature on mother-infant co-sleeping and other mother-infant co-regulatory processes from an evolutionary (biological) perspective, using complexity science. Viewing the mother-infant dyad as a "complex adaptive system" (CAS) shows how the CAS fits assumptions of regulatory processes and reveals the role of the CAS in the ontogeny of mother-infant co-regulation of physiological (thermoregulation, breathing, circadian rhythm coordination, nighttime synchrony, and heart rate variability) and socioemotional (attachment and cortisol activity) development.

Reasons mothers bedshare: A review of its effects on infant behavior and development

Bedsharing is controversial for nighttime caregiving in the U.S. today, as in most of the West. However, from the standpoint of evolutionary pediatrics, anthropology, and cultural psychology, bedsharing is not controversial at all, representing the context for human infant evolution and conferring a host of physiological benefits to the infant as well as the mother. In an effort to understand the rise in Western bedsharing in recent decades (and following Ball, 2002; McKenna & Volpe, 2007), Salm Ward (2015) systematically reviewed the literature on mother-infant bedsharing and identified ten reasons why mothers choose to bedshare: (1) breastfeeding, (2) comforting for mother or infant, (3) better/more sleep for infant or parent, (4) monitoring, (5) bonding/ attachment, (6) environmental reasons, (7) crying, (8) cultural or familial traditions, (9) disagree with danger, and (10) maternal instinct. The current paper offers the "review behind the review," highlighting the scientific evidence behind the reasons mothers give for their decision to bedshare, focusing on how mothers' decisions about infant sleep location influence infant behavior and development.

Breastfeeding in Incarcerated Settings in the United States: A National Survey of Frequency and Policies

Objectives: To assess the existence of prison and jail policies and practices that allow incarcerated women to breastfeed while in custody, and prevalence of women in custody who pumped human milk for their infants. Methods: We surveyed 22 state prison systems and 6 county jails from 2016 to 2017 about policies related to breastfeeding and other programs for pregnant and parenting women in custody. In addition, 11 prisons and 5 jails reported 6 months of monthly, prospective data on the number of women pumping human milk, as well as information on placement of infants born to women in custody. Results: Eleven prisons and five jails had policies that supported the practice of expressed milk, either through pumping or breastfeeding. Over 6 months at these sites that allowed lactation, there were 207 women who gave birth in the prisons and an average of 8 women/month who pumped human milk; at the jails, there were 67 women who gave birth and an average of 6 women/month who pumped human milk. Most infants born to women in custody were placed in the care of a family member. Conclusions: Breastfeeding and the provision of human milk are critical public health issues. Our data show inconsistent implementation of policies and practices supportive of breastfeeding in prisons and jails. However, there are institutions in the United States that are supportive of incarcerated women's breastfeeding and lactation needs. Further research is needed to identify the barriers and facilitators associated with implementing supportive breastfeeding policies and practices in the carceral system.

The impact of co-sleeping less than 6 months on children's anxiety, oral habits, and malocclusion in a Spanish sample between 2 and 5 years old: a cross-sectional study

OBJECTIVES

Families often use co-sleeping to mitigate potential physiological and emotional effects on infants. The purpose of this study was to investigate whether the early termination of co-sleeping is associated with high levels of anxiety, non-nutritive sucking habits for self-comfort, and increased malocclusion.

METHODS

A cross-sectional study was performed on the parents of 215 children [aged 2-5 years (3.94 ± 0.89)], who were divided according to the duration of co-sleeping (≤6 months or >6 months). The parents completed a questionnaire about co-sleeping, sucking, breastfeeding habits, and anxiety. Finally, a clinical examination was carried out to diagnose malocclusion according to the World Health Organization (WHO) index, and the aesthetic component of the Index of Orthodontic Treatment Need (IOTN-AC) was recorded.

RESULTS

Children that co-slept for 6 months or less had an increased incidence of pacifier use (P < 0.05), finger sucking (P < 0.01), and atypical swallowing (P < 0.05). Lower anxiety levels were found in the group with a longer duration of co-sleeping (P < 0.01). In the assessment of malocclusions, the group that co-slept for ≤6 months had higher IOTN scores (P < 0.01) and WHO indices (P < 0.05); in addition, there were differences in anterior open bite (P < 0.05), posterior crossbite (P < 0.01), skeletal Class II (P < 0.01), canine Class II (P < 0.05), and overjet (P < 0.05).

CONCLUSION

A co-sleeping duration of >6 months appears to be a protective factor associated with less anxiety, fewer negative sucking habits, and a decreased incidence of malocclusions in co-sleeping children.