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Published on: October 18, 2024
Mental rotation in human infants: a sex difference
David S Moore1, Scott P Johnson
1Pitzer College and Claremont Graduate University, Los Angeles, CA 91711,USA. dmoore@pitzer.edu
Abstract:
A sex difference on mental-rotation tasks has been demonstrated repeatedly, but not in children less than 4 years of age. To demonstrate mental rotation in human infants, we habituated 5-month-old infants to an object revolving through a 240 degrees angle. In successive test trials, infants saw the habituation object or its mirror image revolving through a previously unseen 120 degrees angle. Only the male infants appeared to recognize the familiar object from the new perspective, a feat requiring mental rotation. These data provide evidence for a sex difference in mental rotation of an object through three-dimensional space, consistently seen in adult populations.
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