Abstract:
:It is clear that the ability to learn new speech contrasts changes over development, such that learning to categorize speech sounds as native speakers of a language do is more difficult in adulthood than it is earlier in development. There is also a wealth of data concerning changes in the perception of speech sounds during infancy, such that infants quite rapidly progress from language-general to more language-specific perceptual biases. It is often suggested that the perceptual narrowing observed during infancy plays a causal role in the loss of plasticity observed in adulthood, but the relationship between these two phenomena is complicated. Here I consider the relationship between changes in sensitivity to speech sound categorization over the first 2 years of life, when they appear to reorganize quite rapidly, to the "long tail" of development throughout childhood, in the context of understanding the sensitive period for speech perception.
journal_name
Dev Psychobioljournal_title
Developmental psychobiologyauthors
Zevin JDdoi
10.1002/dev.20611subject
Has Abstractpub_date
2012-09-01 00:00:00pages
632-42issue
6eissn
0012-1630issn
1098-2302journal_volume
54pub_type
杂志文章,评审abstract::To assess claims about developmental homologies, or devologies, longitudinal data are needed. Here, we illustrate this with the debate about the purported foundational role of neonatal imitation in children's social and cognitive development. Cross-sectional studies over the past 35 years have clarified neither the pr...
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