Stevenson J, Batten N, Cherner M
Department of Psychology, University of Surrey, Guildford, U.K.
J Child Psychol Psychiatry. 1992 Sep;33(6):977-85. doi: 10.1111/j.1469-7610.1992.tb00919.x.
A sample of 175 same sex dizygotic pairs and 144 monozygotic twin pairs aged between 8:00 and 18:00 completed the Fear Survey Schedule for Children--Revised. The heritabilities were significant for Fear of the Unknown (h2 = 0.46, p less than 0.001), Fear of Injury and Small Animals (h2 = 0.46, p less than 0.001), Fear of Danger (h2 = 0.34, p less than 0.001) and for Total Fear Score (h2 = 0.29, p less than 0.001). Multiple regression was used to estimate the heritability of extreme fearfulness (h2g). For each of the fear factors the values of h2g were of similar magnitude to those of h2 suggesting that there is no evidence of greater genetic influences at more extreme levels of fearfulness.
175对8至18岁的同性异卵双胞胎和144对同卵双胞胎完成了儿童恐惧调查表修订版。未知恐惧（h2 = 0.46，p < 0.001）、受伤和小动物恐惧（h2 = 0.46，p < 0.001）、危险恐惧（h2 = 0.34，p < 0.001）以及总恐惧得分（h2 = 0.29，p < 0.001）的遗传力均显著。采用多元回归估计极度恐惧的遗传力（h2g）。对于每个恐惧因素，h2g的值与h2的值大小相似，这表明没有证据表明在更极端的恐惧水平上存在更大的遗传影响。
