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Related Experiment Videos

Laterality, sexual orientation, and immune system functioning: is there a relationship?

D F Halpern1, M Cass

  • 1Department of Psychology, California State University, San Bernardino 92407.

The International Journal of Neuroscience
|August 1, 1994
PubMed
Summary

Laterality, or handedness, and sexual orientation show a link, particularly increased left-sidedness in homosexual men. However, laterality does not predict immune system disorders in this group.

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Area of Science:

  • Neuroscience
  • Human Sexuality
  • Immunology

Background:

  • Recent research explores links between laterality (handedness), sexual orientation, and immune function.
  • Inconsistent findings in previous studies highlight the need for further investigation.
  • This study addresses inconsistencies and explores these relationships in a specific cohort.

Purpose of the Study:

  • To investigate the relationship between laterality, sexual orientation, and immune system functioning.
  • To clarify inconsistencies in existing literature regarding these variables.
  • To examine if laterality can predict immune disorder susceptibility in homosexual men.

Main Methods:

  • Analysis of data focusing on laterality, sexual orientation (homosexual, bisexual, heterosexual), and immune system status.

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  • Statistical examination of correlations between these factors.
  • Specific focus on a sample of HIV-positive males.

    • Main Results:

    • A positive association was found between left-sided laterality and homosexuality in the studied sample of HIV-positive males.
    • No significant association was observed between immune system disorders and either laterality or sexual orientation.
    • Laterality did not differentiate homosexual men based on susceptibility to immune disorders.

    Conclusions:

    • Increased left-sidedness appears more prevalent in homosexual men as a group.
    • Laterality is not a reliable indicator for differentiating susceptibility to immune disorders among homosexual men.
    • Further research is warranted to fully understand the complex interplay of these factors.