@article{ref1,
title="Behavioural genetics of early childhood: fears, restlessness, motion sickness and enuresis",
journal="Acta geneticae medicae et gemellologiae",
year="1984",
author="Abe, Kiyoko and Oda, N. and Hatta, H.",
volume="33",
number="2",
pages="303-306",
abstract="Seventy-nine pairs of same-sex twins were examined at the age of three years at a municipal clinic and their mothers were interviewed to assess the twins' current and past behaviours. The zygosity was determined after the interview by fingerprints and/or bloodtyping in the majority of cases. The following significant differences in concordance between monozygotic and dizygotic twins were found: fear of strangers during observation at the clinic; marked fear of strangers in the first year of life; whether or not the child was startled by sudden noises during infancy; whether or not the child was able to sleep alone at three years without a parent sitting nearby; susceptibility to motion sickness; nocturnal enuresis; short attention span or restlessness during the test.<p /><p>Language: en</p>",
language="en",
issn="0001-5660",
doi="",
url="http://dx.doi.org/"
}