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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Campbell, Julie M. Marcinowski, Emily C. Babik, Iryna Michel, George F. |
| Description | Author Affiliation: Campbell JM ( Center for Developmental Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States); Marcinowski EC ( Department of Psychology, University of North Carolina at Greensboro, Greensboro, NC, United States.); Babik I ( Department of Physical Therapy, University of Delaware, Newark, DE, United States.); Michel GF ( Center for Developmental Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States) |
| Abstract | Development of hand preferences for unimanual manipulation of objects was explored in 90 infants (57 males) tested monthly from 6 to 14 months. From a larger sample of 380 infants, 30 infants with a consistent left hand preference for acquiring objects were matched for sex and development of locomotion skills with 30 infants with a consistent right hand preference for acquisition and 30 with no preference. Although frequency of unimanual manipulations increased during 6-14 month period, infants with a hand preference for acquisition did more object manipulations than those without a preference for acquisition. Multilevel modeling of unimanual manipulation trajectories for the three hand-preference groups revealed that hand preferences for unimanual manipulation become more distinctive with age, and the preference is predicted by the hand preference for object acquisition. Infants with a right and left hand preference for object acquisition develop a right and left (respectively) hand preference for unimanual manipulation. However, the majority of infants at each month do not exhibit hand preferences for unimanual manipulation that are unlikely to occur by chance, even by 14 months. The results are consistent with a cascading theory of handedness development in which early preferences (i.e., for acquisition) are transferred to later developing preferences (i.e., for unimanual manipulation). |
| File Format | HTM / HTML |
| ISSN | 01636383 |
| e-ISSN | 19348800 |
| DOI | 10.1016/j.infbeh.2015.02.013 |
| Journal | Infant Behavior and Development |
| Volume Number | 39 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-05-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Behavioral Sciences Discipline Pediatrics Functional Laterality Physiology Aging Psychology Child Development Hand Strength Infant Locomotion Longitudinal Studies Psychomotor Performance Sex Characteristics Research Support, N.i.h., Extramural |
| Content Type | Text |
| Resource Type | Article |
| Subject | Developmental and Educational Psychology |
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