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Lateral preferences among indian school children.

M Singh1, M Manjary, G Dellatolas

  • 1Ch. Charan Singh University, Meerut, India.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|June 8, 2001
PubMed
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Hand preference in Indian children shows lower left-handedness prevalence compared to French children. Handedness strength increases with age, and females exhibit greater lateralization in motor skills.

Area of Science:

  • Developmental Psychology
  • Human Motor Control
  • Cross-Cultural Studies

Background:

  • Hand preference (handedness) is a fundamental aspect of human motor control.
  • Previous research indicates significant cross-cultural variations in handedness prevalence.
  • Understanding laterality in children is crucial for developmental and neurological studies.

Purpose of the Study:

  • To investigate hand preference prevalence and characteristics in Indian children.
  • To compare findings with previous cross-cultural studies, particularly those from France.
  • To examine age and sex differences in various lateral preference measures and hand skills.

Main Methods:

  • Two studies were conducted with Indian children (ages 4-18).
  • Study 1: Observed hand preference for unimanual activities in 718 children (ages 4-11).

Related Experiment Videos

  • Study 2: Assessed handedness, footedness, eyedness, and hand skill in 400 schoolchildren (ages 6-18) using behavioral tasks.

    • Main Results:

    • Left-handedness prevalence was 3.2% in Study 1 and 4.2% in Study 2, significantly lower than French samples.
    • Preference strength, not direction, correlated with age; older children showed stronger preferences.
    • Females displayed higher right-sided preferences and greater lateralization in motor skills compared to males.

    Conclusions:

    • Indian children exhibit a distinct pattern of hand preference compared to Western populations.
    • Age and sex significantly influence the development and expression of lateral preferences and skills.
    • These findings contribute to understanding the neurobiological and cultural factors shaping human lateralization.