The Conformity between Handedness and Footedness among Iranian Nations

This research was provided to determine the conformity of laterality indices in 2316 participants (5265 females, and 3177 males) with mean age 23 years and 6 months Iranian among nations. Participants were selected by multistage randomized sampling method. They were asked to complete the items of Edinburgh handedness inventory (Oldfield, 1970), the revised version of Waterloo footedness questionnaire (Elias, Bryden, and Bulman- Fleming, 1988). Descriptive data analysis revealed that there were 78/6 %, 6 %, 15/4 % for right, both, and left handedness in-turn. These distributions were 66/8 %, 21/8 %, 11/4 % for right, both, and left footedness. Moreover, A strong correlation were found between handedness and footedness(r= 0/75, p< 0/05). The agreement between right-handedness and right-footedness was 94/9, for being ambidextrous was 16/5, and for left-handedness and left-footedness was 88/3. The Phi coefficient for this agreement was calculated 0/79(p< 0/05), that serve a good conformity between these laterality indices. One of the neuropsychological explanations is that one of the brain hemispheres is considered for the control of a behavior which its dominancy is represented by different preferences for using body structures such as hand or foot. Their motor and sensory functions rigorously are under the influence of that dominant hemisphere. In general, Lateralization has different distribution among Iranian nations and it is less in comparison to other countries.