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Baby boys may show spatial supremacy

Male superiority on mental rotation tasks may develop within a few months after birth

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12:36pm, November 25, 2008

The gender gap in spatial abilities — charted for more than 30 years — emerges within the first few months of life, years earlier than previously thought, psychologists report.

Males typically outperform females on spatial-ability tests by age 4, especially on tasks that require mental rotation of objects perceived as three-dimensional. Yet,
two studies of 3- to 5-month-olds, both published in the November Psychological Science, conclude that a substantially greater proportion of boys than girls distinguish a block arrangement from its mirror image, after having first seen the block arrangement rotated. Babies who prefer looking at the mirror image

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