A lateralized comparison of handedness and object proximity.
This study was motivated by the emerging hypothesis that right-handers are more strongly lateralized and perform better on various aspects of functional asymmetry than do left-handers. Right- and left-handers were observed for hand selection responses to a unimanual task of reaching for a small cube in positions of right- and left hemispace, prompting hemispheric decision-making related to hand dominance and attentional (visuospatial) stimuli. As predicted, left-handers did not respond with their preferred limb as consistently across positions as did right-handers. Additional inspection of the task suggests that being lateralized may not be a disadvantage in this context, and that environmental influence may play a significant role in hand selection for a particular motor event.
Gabbard
C
C
Texas A&M University, USA.
Iteya
M
M
Rabb
C
C
D000328:Adult; D001288:Attention; D003657:Decision Making; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009949:Orientation; D011597:Psychomotor Performance; D012931:Social Environment