Reaching experience increases face preference in 3-month-old infants
Klaus Libertus,Amy Needham +1 more
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TLDR
It is reported that active, self-produced reaching experiences also increase infants' spontaneous orienting towards faces, while passive experiences do not affect orienting behavior.Abstract:
The developing infant learns about the physical and the social world by engaging with objects and with people. In the study reported here, we investigated the relationship between infants’ interactions with the physical and the social world. Three-month-old infants were trained for 2 weeks and experienced either actively manipulating objects themselves or passively having objects touched to their hands. Following active or passive experiences, spontaneous orienting towards faces and objects was compared between the trained groups and untrained 3- and 5-month-olds. It is known that the onset of reaching behavior increases infants’ interest in objects. However, we report that active, self-produced reaching experiences also increase infants’ spontaneous orienting towards faces, while passive experiences do not affect orienting behavior. Regression analyses provide evidence for a link between manual engagement and the development of orienting towards faces. Implications of orienting towards faces for the development of triadic interactions, joint attention, and social cognition in general are discussed.read more
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‘What’ Is Happening in the Dorsal Visual Pathway
TL;DR: The evidence implicating dorsal object representations is reviewed, and an account of the anatomical organization, functional contributions, and origins of these representations in the service of perception is proposed.
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Disruption of functional organization within the primary motor cortex in children with autism
Mary Beth Nebel,Suresh Joel,Suresh Joel,John Muschelli,John Muschelli,Anita D. Barber,Anita D. Barber,Brian Caffo,James J. Pekar,James J. Pekar,Stewart H. Mostofsky,Stewart H. Mostofsky +11 more
TL;DR: Qualitative comparison of the M1 parcellation for children with ASD with that of younger and older TD children suggests that these organizational differences, with a lack of differentiation between lower limb/trunk regions and upper limb/hand regions, may be due, at least in part, to a delay in functional specialization within the motor cortex.
Journal ArticleDOI
From faces to hands: Changing visual input in the first two years.
TL;DR: The first report of the visual frequency of faces and hands in the everyday scenes available to infants is provided and the orderliness of the shift from faces to hands suggests a principled transition in the contents of visual experiences.
Journal ArticleDOI
Review: The impact of motor development on typical and atypical social cognition and language: a systematic review
TL;DR: A systematic search for papers investigating the relationship between motor and social skills was conducted, including research in typical development and in Developmental Coordination Disorder, Autism Spectrum Disorders and Specific Language Impairment.
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Limited fine motor and grasping skills in 6-month-old infants at high risk for autism.
Klaus Libertus,Klaus Libertus,Kelly A. Sheperd,Kelly A. Sheperd,Samuel W. Ross,Rebecca Landa,Rebecca Landa +6 more
TL;DR: Investigation of motor skills among 6-month-olds at increased risk (high risk) for ASD found high-risk infants exhibited less mature object manipulation in a highly structured (MSEL) context and reduced grasping activity in an unstructured (free-play) context.
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