Relationships Between Handedness and a Number of Biological Attributes -Analysis on the Basis of Questionnaire to Female Students-

Abstract

The questionnaires on handedness and a number of biological attributes were asked to 1, 964 Japanese female students to explore the relationships between them. Most items analysed were found to have no relationships to handednes but strong relationships were found between handedness and the ability of physical exercise, the cardio-pulmonary function, the occurrence of urticaria and the thickness of body hair. Ambilaterals were superior to dextrals or sinistrals in the abilities of physical exercise and the cardio-pulmonary function. The inclination to left-handedness was prominent in females whose body hair was thin. The significant linear regression was found for the proportion of dextrals on the frequency of urticaria and on the difference between the number of clockwise hair whorls and that of counterclockwise hair whorls.