Abstract:
:Our study compared means-end exploration in infants at risk (AR) for autism and typically developing (TD) infants using a nested box paradigm. Sixteen AR and 16 TD infants were observed at 9, 12, and 15 months with follow-up at 18 and 24 months. We collected video data on three tasks involving retrieval of a small toy by opening (a) an opaque box, (b) a transparent box, and (c) two nested boxes. Dependent variables included hand bias, time to completion, bilateral hand use, problem-solving strategies used, and tester assistance required. There were no group differences in terms of hand biases. Compared to TD infants, AR infants had lower bilateral hand use, poor problem solving skills, and required greater assistance. Both groups demonstrated age-related improvements in motor and cognitive skills. Means-end exploration provides a window into the bilateral coordination and motor planning/problem-solving abilities of young infants at risk for autism. Lastly, object retrieval tasks could serve as important learning contexts for at-risk infants.
journal_name
Dev Psychobioljournal_title
Developmental psychobiologyauthors
Srinivasan SM,Bhat ANdoi
10.1002/dev.21810subject
Has Abstractpub_date
2019-03-01 00:00:00pages
203-215issue
2eissn
0012-1630issn
1098-2302journal_volume
61pub_type
杂志文章abstract::It is a general rule that milk conveys chemosensory cues that are attractive to mammalian neonates. This study investigated whether compositional fluctuations in milk along lactation induce variations in newborn mouse pups' (Mus musculus, strain BALB/c) attraction to milk odor. Pups differing in suckling experience we...
journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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