Development of Role-Differentiated Bimanual Manipulation during the Infant's First Year
Development of Role-Differentiated Bimanual Manipulation during the Infant's First Year
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DOI:
10.1002/dev.20428
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发表时间:
2010-03-01
影响因子:
2.2
通讯作者:
Michel, George F.
中科院分区:
文献类型:
--
作者:
Kimmerle, Marliese;Ferre, Claudio L.;Michel, George F.
Role-differentiated bimaimal manipulation (RDBM) is a complementary movement of both hands that requires differentiation between actions of the hands. Previous research showed that RDBM can be observed in infants as early, as 7 mouths. However: RDBM could be considered a skill only when its frequency, duration, and use is appropriate for the type of manual task, and there is some evidence of intentionally in use. Twenty-four normally developing infants were studied longitudinally of 7. 9, 11, and 13 months to assess the frequency and duration of five clearly, different types of RDBM with three "single-part" and three "two-parts" toys as they emerge during development. Also, the sentences of actions that lead to RDBM were examined for evidence of "intentionally". The results show that although the each type of RDBM appears early in infancy. RDBM only to exhibit the characters of a skill by 13 months. Moreover; the type of toy influences not only the likelihood of eliciting role differentiation, but also the type of RDBM behavior and the organization of the sequence of actions that lead to RDBM. Some useful criteria for defining an bit nit sensorimotor skill are provided in discussion. (C) 2009 Wiley Periodicals. Inc. Dev Psychobiol 52: 168-180, 2010.