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Direct linkWest, Kelsey L.; Iverson, Jana M. – Developmental Science, 2021
Learning to walk allows infants to travel faster and farther and explore more of their environments. In turn, walking may have a cascading effect on infants' communication and subsequent responses from caregivers. We tested for an "inflection point"--a dramatic shift in the developmental progression--in infant communication and caregiver…
Descriptors: Infants, Infant Behavior, Physical Mobility, Caregiver Child Relationship
Northrup, Jessie B.; Iverson, Jana M. – Developmental Psychology, 2020
Early mother-infant coordinated interactions play a critical role in infant development. The present study describes the development of the dyadic coordination of vocalization and gaze behavior between mothers and infants over the first year of life. In addition to describing developmental trajectories of behavior, the study contributes to our…
Descriptors: Parent Child Relationship, Mothers, Infants, Child Development
Heymann, Perrine; Northrup, Jessie B.; West, Kelsey L.; Parladé, Meaghan V.; Leezenbaum, Nina B.; Iverson, Jana M. – International Journal of Language & Communication Disorders, 2018
Background: Research indicates that social communicative behaviours develop atypically during the second year in Autism Spectrum Disorder (ASD). This study evaluated whether these behaviours also differed in the extent to which they were coordinated across modalities. Aims: To measure joint attention behaviours (e.g., gaze shifts, gestures),…
Descriptors: Infants, Siblings, Children, Autism
LeBarton, Eve Sauer; Iverson, Jana M. – International Journal of Language & Communication Disorders, 2016
Background: Nonverbal communication deficits are characteristic of autism spectrum disorder (ASD) and have been reported in some later-born siblings of children with ASD (heightened-risk (HR) children). However, little work has investigated gesture as a function of language ability, which varies greatly in this population. Aims: This longitudinal…
Descriptors: Toddlers, Autism, Sibling Relationship, Nonverbal Communication
Koterba, Erin A.; Leezenbaum, Nina B.; Iverson, Jana M. – Autism: The International Journal of Research and Practice, 2014
During the first year of life, infants spend substantial amounts of time exploring objects they encounter in their daily environments. Perceptuo-motor information gained through these experiences provides a foundation for later developmental advances in cognition and language. This study aims to examine developmental trajectories of visual, oral,…
Descriptors: Infants, Autism, At Risk Persons, Pervasive Developmental Disorders
Fagan, Mary K.; Iverson, Jana M. – Infancy, 2007
Although vocalization and mouthing are behaviors frequently performed by infants, little is known about the characteristics of vocalizations that occur with objects, hands, or fingers in infants' mouths. The purpose of this research was to investigate characteristics of vocalizations associated with mouthing in 6 to 9-month-old infants during play…
Descriptors: Phonetics, Infants, Infant Behavior, Language Acquisition
