In adults, substantial and consistent sex differences during mental rotation favouring men are obtained as long as certain methodological boundary conditions are met. In recent years, a number of studies using different stimuli and experimental approaches investigated sex differences in mental rotation in infants with inconclusive results. The goal of the present study was to examine on the basis of a sufficient statistical power (a) whether infants aged 6 month are able to use mental rotation in a preferential looking task after familiarization with simple 2‐D stimuli; (b) whether there were sex differences present, and (c) whether the results depend on inducing an expectation about the orientation of the upcoming stimulus.

中文翻译：

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二维精神旋转任务中的婴儿看时间

在成年人中，只要满足一定的方法论边界条件，在男性偏爱的心理旋转过程中，就会获得实质性和一致的性别差异。近年来，许多使用不同刺激和实验方法的研究调查了婴儿心理旋转中的性别差异，但结论尚无定论。本研究的目的是在足够的统计能力的基础上进行检查（a）熟悉简单的二维刺激后，6个月大的婴儿是否能够在优先任务中使用智力旋转；（b）是否存在性别差异，以及（c）结果是否取决于对即将到来的刺激方向的期望。