Handedness in a Chinese population: biological, social, and pathological factors

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Science  17 Sep 1976:
Vol. 193, Issue 4258, pp. 1148-1150
DOI: 10.1126/science.986686


A questionnaire survey of 4143 Chinese was conducted. Social pressure for right-handed writing and eating was effective on these two target skills but showed little indirect influence on hand use in other activities. Neither primiparous birth nor birth to older mothers affected handedness. Twinning, however, seemed to be associated with both decreased right-handedness and lower intelligence.