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Hand preference in homosexual men.

P Satz1, E N Miller, O Selnes

  • 1UCLA Neuropsychiatric Institute.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|June 1, 1991
PubMed
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This study found no link between left-handedness and immune function in homosexual men. However, left-handers showed more outliers on neuropsychological tests, regardless of HIV status.

Area of Science:

  • Neuroscience
  • Immunology
  • Psychology

Background:

  • Hand preference distribution is generally consistent across populations.
  • Previous hypotheses suggested links between homosexuality, handedness, and autoimmune disorders.

Purpose of the Study:

  • To examine hand preference distribution in homosexual men.
  • To investigate the relationship between hand preference, immune function, and neuropsychological performance.
  • To test hypotheses linking homosexuality, handedness, and autoimmune disorders.

Main Methods:

  • Analysis of hand preference and neuropsychological test data from 993 homosexual men (HIV-negative, HIV-positive, and AIDS diagnoses).
  • Assessment of immune system parameters (CD4 counts) and self-reported allergies.

Related Experiment Videos

  • Comparison of left-handers and right-handers across different HIV statuses.

    • Main Results:

    • Left-handedness prevalence (13.1-14.5%) was similar to the general population.
    • No significant differences in CD4 counts or allergy prevalence between left- and right-handers.
    • Left-handers exhibited more outliers on neuropsychological measures than right-handers, irrespective of HIV status.

    Conclusions:

    • The study did not support a link between homosexuality, handedness, and autoimmune disorders.
    • Findings suggest potential differences in neuropsychological functioning between left- and right-handers, independent of HIV status.
    • Results are discussed in the context of pathological left-handedness models.