title: The influence of a hand preference for acquiring objects on the development of a hand preference for unimanual manipulation from 6 to 14 months.
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).
authors.affiliation: Center for Developmental Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States; Department of Psychology, University of North Carolina at Greensboro, Greensboro, NC, United States. Electronic address: jmcampb2@uncg.edu.
authors.forename: Julie M
authors.initials: JM
authors.lastname: Campbell
authors.affiliation: Department of Psychology, University of North Carolina at Greensboro, Greensboro, NC, United States.
authors.forename: Emily C
authors.initials: EC
authors.lastname: Marcinowski
authors.affiliation: Department of Physical Therapy, University of Delaware, Newark, DE, United States.
authors.forename: Iryna
authors.initials: I
authors.lastname: Babik
authors.affiliation: Center for Developmental Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States; Department of Psychology, University of North Carolina at Greensboro, Greensboro, NC, United States.
authors.forename: George F
authors.initials: GF
authors.lastname: Michel
mesh_terms: D000375:Aging / Q000523:psychology; D002657:Child Development; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D018737:Hand Strength; D006801:Humans; D007223:Infant; D008124:Locomotion; D008137:Longitudinal Studies; D008297:Male; D011597:Psychomotor Performance; D012727:Sex Characteristics
keywords: Infant handedness; Lateralization; Longitudinal; Unimanual manipulation
references.citation: Br J Psychol. 2000 Feb;91 ( Pt 1):21-39
references.pmid: 10717769
references.citation: Dev Psychol. 2014 Mar;50(3):809-14
references.pmid: 23855258
references.citation: J Genet Psychol. 1966 Jun;108(2d Half):337-45
references.pmid: 5961989
references.citation: Br J Psychol. 1972 Aug;63(3):343-58
references.pmid: 4199291
references.citation: Cortex. 1975 Sep;11(3):230-8
references.pmid: 1204363
references.citation: Percept Mot Skills. 1977 Dec;45(3 Pt 2):1041-2
references.pmid: 604877
references.citation: Cortex. 1989 Jun;25(2):289-304
references.pmid: 2758854
references.citation: Behav Genet. 1992 Mar;22(2):163-76
references.pmid: 1596256
references.citation: J Genet Psychol. 1949 Dec;75(2):197-220
references.pmid: 15409766
references.citation: Artif Life. 2005 Winter-Spring;11(1-2):13-29
references.pmid: 15811218
references.citation: Dev Psychobiol. 2008 Jul;50(5):519-29
references.pmid: 18551469
references.citation: Dev Psychobiol. 2010 Mar;52(2):168-80
references.pmid: 20127887
references.citation: Infant Behav Dev. 2010 Dec;33(4):492-502
references.pmid: 20619463
references.citation: Infant Behav Dev. 2012 Apr;35(2):205-14
references.pmid: 22297129
references.citation: Infant Behav Dev. 2013 Apr;36(2):181-8
references.pmid: 23454419
references.citation: Child Dev. 2013 May-Jun;84(3):810-6
references.pmid: 23106197
references.citation: Laterality. 2013;18(5):576-93
references.pmid: 23231501
references.citation: Child Dev. 2014 Jan-Feb;85(1):294-307
references.pmid: 23638971
references.citation: Dev Psychol. 2014 Feb;50(2):349-59
references.pmid: 23772820
references.citation: Dev Psychobiol. 2003 Dec;43(4):328-34
references.pmid: 15027416