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Handedness not a Function of Birth Order

Abstract

IT has been suggested1 on the basis of a survey of 648 university students (95 left handed = 14.7%) that handedness is a function of birth order and that left handedness may be caused by neurological insults associated with prenatal or birth trauma. I here report a similar survey of 974 university students (141 left handed =14.5%).

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References

  1. Bakan, P., Nature, 229, 195 (1971).

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  2. Hecaen, H., and De Ajuriaguerra, J., Left-handedness: Manual Superiority and Cerebral Dominance (Grune and Stratton, New York and London, 1964).

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  3. Rife, D. C., Human Biol., 22, 137 (1950).

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HUBBARD, J. Handedness not a Function of Birth Order. Nature 232, 276–277 (1971). https://doi.org/10.1038/232276a0

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