Performance on a mirror-drawing task by non-right-handers.
Left-, mixed-, and right-handed (each n = 10, N = 30) adolescent boys who were classified on the basis of a hand preference inventory performed a mirror-drawing task with a bilateral transfer of a skill paradigm. Participants' hand preference and the magnitude of bilateral transfer of skill were assessed in terms of errors committed and time taken to complete the mirror-drawing task. Mixed-handed participants exhibited significantly less habit interference for mirror drawing, and they performed the task significantly faster than the left-handers did; the group difference was not significant for the frequency of errors committed. These groups did not differ in terms of the magnitude of bilateral transfer of skill; the trend, however, showed that the transfer of skill was minimum in mixed-handers. These findings extend the theory that mixed-handed participants' inability to transfer motor skill from one hand to the other could be attributable to their lack of a clear pattern of lateralization. Their ability to perform well either at initial or later trials may be a function of less interference from their normal motor habits.
Bhushan
B
B
Banaras Hindu University, India.
Dwivedi
C B
CB
Mishra
R
R
Mandal
M K
MK
D000293:Adolescent; D004292:Dominance, Cerebral; D007839:Functional Laterality; D006801:Humans; D008297:Male; D011597:Psychomotor Performance; D014163:Transfer, Psychology