在之前的文章中讨论过的民间心理学和民间物理学的性别差异也表现出类似的模式。语言是民俗心理学的一个组成部分,女孩和妇女在语言理解和生产的许多基本特征上都有优势(见民俗心理学中的后性别差异)。由此产生的一个预测是,女孩的语言发展比男孩的语言发展更容易受到压力的影响。一个支持的例子是产前接触可卡因对语言能力的影响。例如,Malakoff等人(1999)研究了出生前暴露于自然环境中的2岁儿童的自然语言发展,发现与未暴露于自然环境中的儿童相比,儿童的发展滞后。关键的是,暴露在辐射下的儿童与同性同龄人之间的差距,女孩是男孩的3到6倍。作者得出结论,“暴露于可卡因的影响是由性别决定的,女孩比男孩更明显”(Malakoff et al., 1999, p. 173)。另一个例子是神经性厌食症患者,也就是营养不良的女性。这些女性在民间心理学(如解读肢体语言)方面表现出广泛的缺陷,而在其他领域(如民间物理学)表现出较小的缺陷,这些缺陷在她们恢复正常体重后就会恢复。
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