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A Home-Based Longitudinal Study of Vocalization Behaviors across Infants at Low and Elevated Risk of Autism
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DeVeney, Shari L.; Kyvelidou, Anastasia; Mather, Paris – Autism & Developmental Language Impairments, 2021
Background and Aims: The purpose of this exploratory study was to expand existing literature on prelinguistic vocalizations by reporting results of the first home-based longitudinal study examining a wide variety of behaviors and characteristics, including early vocalizations, across infants at low and elevated risk of autism spectrum disorder…
Descriptors: Autism Spectrum Disorders, Infants, Child Development, At Risk Persons
Night Awakening in Infancy: Developmental Stability and Longitudinal Associations with Psychomotor Development
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Mäkelä, Tiina E.; Peltola, Mikko J.; Nieminen, Pirkko; Paavonen, E. Juulia; Saarenpää-Heikkilä, Outi; Paunio, Tiina; Kylliäinen, Anneli – Developmental Psychology, 2018
Fragmented sleep is common in infancy. Although night awakening is known to decrease with age, in some infants night awakening is more persistent and continues into older ages. However, the influence of fragmented sleep on development is poorly known. In the present study, the longitudinal relationship between fragmented sleep and psychomotor…
Descriptors: Infants, Correlation, Psychomotor Skills, Sleep
The Role of Siblings in the Development of Imitation.
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Barr, Rachel – 1999
This study examined the development of imitation under naturalistic conditions. Participating were 320 parents, who provided diary records of imitation by their 12-, 15-, and 18-month-old infants over a 7-day period. Approximately half of the infants were first-borns and half had older siblings. The findings indicated that infants of all ages…
Descriptors: Age Differences, Behavior Development, Diaries, Foreign Countries
It's Not What You Know, It's Who You Know: Older Siblings Facilitate Imitation during Infancy.
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Barr, Rachel; Hayne, Harlene – International Journal of Early Years Education, 2003
Investigated effects of older siblings on imitation by 12-, 15-, and 18-month-olds. Found that all age groups acquired one to two new behaviors per day through imitation. Older infants imitated more multi-step sequences and substituted more objects during reenactment than younger. Compared to infants without siblings, infants with siblings…
Descriptors: Age Differences, Comparative Analysis, Cross Sectional Studies, Early Experience
Verbal and Nonverbal Components of a Two Year Old's Social Interaction with Multiaged Partners.
Price, Susan E. – 1984
The primary purpose of this study was to describe the linguistic behavior exhibited by a female subject (age 2 years, 4 months) during naturally occurring social interaction with children of different ages. Verbal and nonverbal behavior were studied; of additional interest were variables influencing the emergence of linguistic behavior. Data were…
Descriptors: Age Differences, Case Studies, Communication Research, Communication (Thought Transfer)
Social Behavior of Young Siblings in the Family Context: Differences between Same-Sex and Different-Sex Dyads.
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Dunn, Judy; Kendrick, Carol – Child Development, 1981
Individual differences in the social behavior of young siblings were studied in 40 sibling pairs observed at home, when the second child was 8 months old and 14 months old. Differences between same-sex and different-sex sibling pairs were marked by the second observation. More positive social behavior characterized same-sex pairs; more negative…
Descriptors: Age Differences, Family (Sociological Unit), Foreign Countries, Individual Differences