Abstract:
:This third paper in a series of three related developmental trajectories of bimanual object acquisition and non-differentiated bimanual manipulation (NDBM) to patterns of role-differentiated bimanual manipulation (RDBM) development to help identify the sequence of events that might predict (and potentially facilitate) the development of RDBM skill. Ninety infants were tested monthly from 6 to 14 months of age for object acquisition, and from 9 to 14 months for NDBM and RDBM. The results did not support the hypothesis proposing that the onset of RDBM would require decoupling of the hands in unimanual acquisition, but supported the prediction that coupling of the hands in bimanual acquisition would predict increasing expertise in the RDBM skill. The relation between the bimanual object acquisition and RDBM was found to be mediated by NDBM, which prompts the hypothesis that bimanual acquisition of objects facilitates the development of NDBM, which, in its turn, facilitates the development of the RDBM skill.
journal_name
Dev Psychobioljournal_title
Developmental psychobiologyauthors
Babik I,Michel GFdoi
10.1002/dev.21383subject
Has Abstractpub_date
2016-03-01 00:00:00pages
268-77issue
2eissn
0012-1630issn
1098-2302journal_volume
58pub_type
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