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Hand preference in Italian students.

M Pia Viggiano1, P Borelli, M Vannucci

  • 1Dipartimento di Psicologia, Università degli Studi di Firenze, Italy. mpviggiano@psico.unifi.it

Laterality
|October 30, 2004
PubMed
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This study found a higher prevalence of left-handedness (7.9%) among Italian university students than previously reported. Regional differences in left-handedness were also observed, suggesting social and cultural influences.

Area of Science:

  • Neuroscience
  • Psychology
  • Sociology

Background:

  • Handedness, the preference for using one hand over the other, is a complex trait influenced by genetic and environmental factors.
  • Previous research on handedness in Italian populations has indicated varying prevalence rates.

Purpose of the Study:

  • To investigate the prevalence of left-handedness among Italian university undergraduates.
  • To explore the relationship between left-handedness and demographic factors such as sex, university faculty, and geographic origin.
  • To examine the influence of handedness pressure on left-handedness incidence.

Main Methods:

  • A large sample of 2326 Italian undergraduates completed the Italian revised version of the Edinburgh Handedness Inventory.
  • Data on sex, university faculty, geographic origin, and handedness pressure were collected.

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  • Statistical analyses were performed to determine prevalence rates and significant associations.

    • Main Results:

    • A higher proportion of left-handedness (7.9%) was observed compared to previous Italian studies.
    • Significant differences in left-handedness incidence were found across Southern, Central, and Northern Italian regions.
    • Associations between left-handedness and demographic factors were explored, with regional variations noted.

    Conclusions:

    • The findings suggest a potentially increasing trend or a higher prevalence of left-handedness in contemporary Italian university students.
    • Geographic origin appears to be a significant factor influencing left-handedness rates within Italy.
    • Social and cultural factors likely play a role in shaping handedness patterns.