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Lenehan SM, Fogarty L, O’Connor C, Mathieson S, Boylan GB. The Architecture of Early Childhood Sleep Over the First Two Years. Matern Child Health J 2023; 27:226-250. [PMID: 36586054 PMCID: PMC9925493 DOI: 10.1007/s10995-022-03545-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2022] [Indexed: 01/01/2023]
Abstract
INTRODUCTION The architecture and function of sleep during infancy and early childhood has not been fully described in the scientific literature. The impact of early sleep disruption on cognitive and physical development is also under-studied. The aim of this review was to investigate early childhood sleep development over the first two years and its association with neurodevelopment. METHODS This review was conducted according to the 2009 PRISMA guidelines. Four databases (OVID Medline, Pubmed, CINAHL, and Web of Science) were searched according to predefined search terms. RESULTS Ninety-three studies with approximately 90,000 subjects from demographically diverse backgrounds were included in this review. Sleep is the predominant state at birth. There is an increase in NREM and a decrease in REM sleep during the first two years. Changes in sleep architecture occur in tandem with development. There are more studies exploring sleep and early infancy compared to mid and late infancy and early childhood. DISCUSSION Sleep is critical for memory, learning, and socio-emotional development. Future longitudinal studies in infants and young children should focus on sleep architecture at each month of life to establish the emergence of key characteristics, especially from 7-24 months of age, during periods of rapid neurodevelopmental progress.
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Affiliation(s)
| | - Leanna Fogarty
- INFANT Research Centre, University College Cork, Cork, Ireland
| | - Cathal O’Connor
- INFANT Research Centre, University College Cork, Cork, Ireland
| | - Sean Mathieson
- INFANT Research Centre, University College Cork, Cork, Ireland
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Sleep Patterns in Young Children with Congenital Heart Disease. J Pediatr 2023; 252:198-203.e2. [PMID: 36029823 DOI: 10.1016/j.jpeds.2022.08.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/15/2022] [Accepted: 08/19/2022] [Indexed: 10/15/2022]
Abstract
Sleep patterns of 419 toddlers with congenital heart disease were comparable with the normative population except for increased likelihood across the cohort of sleeping in parents' room and increased disrupted sleep in children aged 18-23 months. Disrupted sleep patterns were associated with lower maternal education and increased medical complexity.
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Sleep Difficulties in Infancy Are Associated with Symptoms of Inattention and Hyperactivity at the Age of 5 Years: A Longitudinal Study. J Dev Behav Pediatr 2019; 40:432-440. [PMID: 31166249 PMCID: PMC6738636 DOI: 10.1097/dbp.0000000000000684] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Sleep difficulties are associated with cognitive and behavioral problems in childhood. However, it is still unclear whether early sleep difficulties are related to later development. We studied whether parent-reported sleep duration, night awakenings, and parent-reported sleep problems in early childhood are associated with symptoms of inattention and hyperactivity at the age of 5 years. METHOD Our study is based on the Child-Sleep birth cohort initially comprising 1673 families, of which 713 were retained at the age of 5 years. We used the Brief Infant Sleep Questionnaire and the Infant Sleep Questionnaire, which were filled out by the parents when their child was 3, 8, and 24 months and 5 years old. Symptoms of inattention and hyperactivity at the age of 5 years were assessed using the Strengths and Difficulties Questionnaire and the Five-to-Fifteen questionnaire. RESULTS Sleep duration at the age of 3, 8, and 24 months was associated with inattentiveness at 5 years of age. Moreover, parent-reported sleep problems at the age of 24 months were related to both inattentive and hyperactive symptoms at the age of 5 years. Finally, at the age of 5 years, parent-reported sleep problems and night awakenings were associated with concurrent symptoms of inattention and hyperactivity. CONCLUSION Our findings suggest that certain sleep characteristics related to sleep quality and quantity in early childhood are associated with inattentiveness and hyperactivity at the age of 5 years. Interestingly, sleep duration in early childhood is consistently related to inattention at the age of 5 years.
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Atun-Einy O, Scher A. Sleep disruption and motor development: Does pulling-to-stand impacts sleep-wake regulation? Infant Behav Dev 2015; 42:36-44. [PMID: 26704990 DOI: 10.1016/j.infbeh.2015.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 10/02/2015] [Accepted: 11/26/2015] [Indexed: 10/22/2022]
Abstract
During the second half of the 1st year, periods of increased sleep disruption have been documented alongside overall improvement in sleep-wake regulation. The objective of the present research was to test if pulling-to-stand (PTS), a milestone typically achieved during the latter part of the 1st year, co-occurs with a period of disrupted sleep. In a longitudinal design, 20 healthy infants were followed-up, from 7 to 11-12 months, at 3-week intervals. Each measurement consisted of filmed motor observations and sleep recordings (actigraphy), both conducted at home. It was found that among early achievers of PTS (by 8 months), the milestone was time-linked to a period of disrupted sleep. The results point to the significance of timing in the interplay between domains of development, and highlight the importance of considering both chronological and developmental metrics in studying changes in sleep-wake regulation.
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Affiliation(s)
- Osnat Atun-Einy
- Department of Physical Therapy, University of Haifa, Haifa, Mount Carmel 31905 Israel
| | - Anat Scher
- Department of Counseling and Human Development, University of Haifa, Haifa, Mount Carmel 31905, Israel.
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De Marcas GS, Soffer-Dudek N, Dollberg S, Bar-Haim Y, Sadeh A. Reactivity and sleep in infants: a longitudinal objective assessment. Monogr Soc Res Child Dev 2015; 80:49-69. [PMID: 25704735 DOI: 10.1111/mono.12144] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sleep patterns and temperament in the first year of life are closely related. However, research utilizing objective, rather than subjective measurements of sleep and temperament is scarce and results are inconsistent. In addition, a relative lack of longitudinal data prevents inference of causality between the two constructs. In this study, infant sleep was objectively assessed among 95 infants at 3, 6, and 12 months-of-age with an actigraph in the home setting. Reactivity to sound, light, and touch, a specific aspect of temperament, was behaviorally assessed at 3 and 6 months, both during sleep (at home) and during waking (at the laboratory). Expected maturational trends were recorded in sleep, with a temporal increase in sleep efficiency and percent of motionless sleep. Quadratic (i.e., inverse U shape) relations were found, especially among girls, when predicting change in sleep by reactivity thresholds, suggesting that both hyposensitive and hypersensitive infants are at risk for poor sleep quality. These are the first research findings suggesting that low reactivity in infancy might be associated with compromised sleep quality. The observed nonlinear effects may account for null or inconsistent results in previous studies that explored only linear associations between temperament and sleep. Future studies should address both extremes of the temperament continuum when exploring relations with sleep patterns.
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Scher A, Cohen D. Sleep as a mirror of developmental transitions in infancy: the case of crawling. Monogr Soc Res Child Dev 2015; 80:70-88. [PMID: 25704736 DOI: 10.1111/mono.12145] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The associations between the onset of crawling and changes in sleep were examined in 28 infants who were followed from 5 to 11 months-of-age. Motor development and sleep (actigraphy) were assessed at 2- to 3-week intervals. Along with the overall improvement in sleep consolidation, periods of increased long wake episodes were also manifested; the rise in sleep disruption was temporally linked to crawling onset. The results of the study highlight the dynamic interrelations between domains of development, indicate that emerging motor skills may involve periods of disrupted sleep, and point to the moderating effect of age. Clarifying the factors involved in the interplay between developmental milestones and sleep remains a challenge for future research.
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Affiliation(s)
- Anat Scher
- Department of Counseling and Human Development, University of Haifa, Haifa, Israel
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Coulombe JA, Reid GJ. What do preschool-aged children do when they wake at night: toward an understanding of night-waking behaviors among community children. Behav Sleep Med 2014; 12:89-105. [PMID: 23480020 DOI: 10.1080/15402002.2013.764527] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Little is known about behaviors displayed by preschoolers during night-waking. Mothers (N = 203) of community preschoolers completed the Children's Night-waking Behavior Scale and measures of night-waking, co-sleeping, and daytime behavior. Approximately 1/2 of wakings involved calling out, getting out of bed, and requests for comfort; 1/4 involved activity, fear, or instrumental requests. Specific associations between night-waking behaviors, night-waking, and bedtime and daytime behaviors were observed; associations were not consistent across child gender and age. For example, comfort requests were associated with mothers' perceptions of sleep as problematic in 4- and 5-year-old children only (ρ = .42); activity requests were associated with hyperactivity for boys only (r = .36). Understanding night-waking requires consideration of factors beyond parenting, such as children's behavior, age, and gender.
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Affiliation(s)
- J Aimée Coulombe
- a Department of Psychology , The University of Western Ontario , London , Ontario , Canada
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Atun-Einy O, Cohen D, Samuel M, Scher A. Season of birth, crawling onset, and motor development in 7-month-old infants. J Reprod Infant Psychol 2013. [DOI: 10.1080/02646838.2013.826347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Atun-Einy O, Berger SE, Ducz J, Sher A. Strength of Infants' Bimanual Reaching Patterns is Related to the Onset of Upright Locomotion. INFANCY 2013. [DOI: 10.1111/infa.12030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Sarah E. Berger
- Department of Psychology; The College of Staten Island; The Graduate Center of the City University of New York
- Department of Psychology; The Graduate Center of the City University of New York
| | - Jennifer Ducz
- Department of Psychology; The Graduate Center of the City University of New York
| | - Anat Sher
- Department of Counseling and Human Development; University of Haifa
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Atun-Einy O, Berger SE, Scher A. Assessing motivation to move and its relationship to motor development in infancy. Infant Behav Dev 2013; 36:457-69. [DOI: 10.1016/j.infbeh.2013.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 12/16/2012] [Accepted: 03/18/2013] [Indexed: 10/26/2022]
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Hayes MJ, McCoy SK, Fukumizu M, Wellman JD, Dipietro JA. Temperament and Sleep-Wake Behaviors from Infancy to Toddlerhood. INFANT AND CHILD DEVELOPMENT 2011; 20:495-508. [PMID: 22003317 PMCID: PMC3190304 DOI: 10.1002/icd.720] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Sleep-wake behaviors and temperament were examined longitudinally for trait stability and relationship to behavioral state regulation from infancy to early childhood. Subjects were 120 low-risk, full-term infants from a middle class sample. At 6 weeks, parents completed 3 consecutive days of the Baby's Day Diary which measures sleep, wake, fuss, feed and cry states and the Infant Characteristics Questionnaire. At 16 months, parents assessed sleep behaviors with the Sleep Habits Inventory and temperament with the Toddler Symptom Checklist. At 24 months, parents repeated 3 days of the Baby's Day Diary. Structural Equation Modeling was used to examine cross-age hypotheses for sleep-wake and temperament associations. From early infancy to toddlerhood, sleep-wake behaviors and irritable temperament were notably stable but independent in this cohort.
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Atun-Einy O, Berger SE, Scher A. Pulling to stand: common trajectories and individual differences in development. Dev Psychobiol 2011; 54:187-98. [PMID: 21815138 DOI: 10.1002/dev.20593] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 07/06/2011] [Indexed: 11/07/2022]
Abstract
This longitudinal study of 27 infants examined the development of pulling-to-stand (PTS). In general, infants began PTS using a two-leg strategy and transitioned to a half-kneel strategy. As a group, infants showed no preference for either strategy at the onset of PTS, switching between strategies until half-kneeling became the dominant pattern about 1 month after the onset of PTS. Examination of individual developmental trajectories revealed variability in age at PTS onset, time between PTS onset and half-kneel strategy onset, duration of the two-leg strategy as the dominant pattern, time until the half-kneel strategy became the dominant pattern, shape of the transition between strategies (gradual vs. abrupt), and timing of PTS relative to onset of other motor milestones. We discuss variation in developmental trajectory in terms of adaptive behavior during the acquisition of new skills and as a process shaped by infants' unique experiences prior to and during the acquisition period.
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Affiliation(s)
- Osnat Atun-Einy
- Department of Counseling and Human Development, Faculty of Education, University of Haifa, Haifa, Israel
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Abstract
Pediatric sleep disorders are common, affecting approximately 25% to 40% of children and adolescents. Although there are several different types of sleep disorders that affect youth, each disorder can have a significant impact on daytime functioning and development, including learning, growth, behavior, and emotion regulation. Researchers are only beginning to uncover the interaction between sleep and psychiatric disorders in children and adolescents, including depression, attention-deficit/hyperactivity disorder, and autism. This article reviews normal sleep and sleep disorders in children and adolescents, the assessment of sleep in pediatric populations, common pediatric sleep disorders, and sleep in children who have common psychiatric disorders.
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Affiliation(s)
- Lisa J Meltzer
- Division of Pulmonary Medicine, The Children's Hospital of Philadelphia and University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
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