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Hand and foot preference in two cultures.

Miriam Ittyerah1

  • 1Department of Psychology, University of Delhi , Delhi , India.

Laterality
|February 8, 2019
PubMed
Summary

Hand and foot preferences show distinct lateralization patterns, with hands being more right-lateralized than feet. These limb lateralization differences persist across cultures, suggesting unique neurobiological underpinnings for upper and lower limb dominance.

Area of Science:

  • Neuroscience
  • Human Motor Control
  • Behavioral Science

Background:

  • Limb preference, or handedness and footedness, is a fundamental aspect of human motor behavior.
  • Previous research has explored hand preference, but less is known about the patterns and consistency of foot preference across diverse populations.
  • Understanding limb lateralization is crucial for insights into brain organization and motor control.

Purpose of the Study:

  • To investigate and compare hand and foot preferences in adult populations from India and France.
  • To examine the degree of lateralization for upper versus lower limbs.
  • To determine if cultural or geographical factors influence limb preference patterns.

Main Methods:

  • Adult participants from India and France completed hand and foot preference questionnaires.
Keywords:
Hand and foot preferenceculturegeographical locationlateralization

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  • Questionnaires used a scale assessing preference from extreme left to extreme right, including no preference.
  • Laterality index was calculated to quantify hand and foot preferences.

    • Main Results:

    • Both Indian and French participants exhibited stronger right-lateralization for hand actions.
    • Foot preferences were less right-lateralized, showing a wider distribution from extreme right preference to no preference.
    • Consistent trends in hand and foot lateralization were observed even with smaller sample sizes compared to hand preferences alone.

    Conclusions:

    • A significant difference exists in the lateralization patterns between upper (hands) and lower (feet) limbs.
    • This difference in limb lateralization is consistent across different cultures and geographical locations.
    • Further research is needed to elucidate the underlying reasons for the reduced lateralization observed in lower limbs compared to upper limbs.