Development of Role-Differentiated Bimanual Manipulation in Infancy: Part 2. Hand Preferences for Object Acquisition and RDBM—Continuity or Discontinuity?

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
George F. Michel, Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
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Abstract: This second paper in a series of three investigated the development of hand preference for role-differentiated bimanual manipulation (RDBM) relative to the infant’s hand preference for object acquisition and to the infant’s hand-use for acquiring the objects used to assess RDBM. The same 90 infants (30 with a right preference, 30 with a left preference, and 30 with no preference to acquire objects) from the ?rst paper were tested from 9 to14 months for hand preference for acquiring those objects used to assess RDBM and for a hand preference for RDBM. Multilevel analysis revealed that infants with a hand preference for acquiring objects decreased in their use of the preferred hand for object acquisition during the 11 to 14 month interval, which coincided with the development of a hand preference for RDBM. These results are discussed in relation to the cascade theory of hand preference development. Copyright 2015 Wiley Periodicals, Inc. Dev Psychobiol 58:257–267, 2016.

Additional Information

Developmental Psychobiology, 58(2), 257-267
Language: English
Date: 2018
bimanual manipulation, reaching, hand preference, development, infancy

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