In the study, researchers scanned the brains of women who had never conceived before, and again after they gave birth for the first time.

在这项研究中，研究人员扫描了从未怀过孕的女性的大脑，然后在她们第一次生育后再次进行扫描。

The results were remarkable: loss of gray matter in several brain areas involved in a process called social cognition or "theory of mind," the ability to register and consider how other people perceive things.

结果很明显：有几个脑部区域中的灰质减少了，这些区域涉及"社会认知"或"心理理论"过程，指的是注意和考虑他人如何感知事物的能力。

It's possibile the loss is "part of the brain's program for dealing with the future," said Paul Thompson, a neuroscientist at the University of Southern California who was not involved in the study.

这种减少可能是"处理未来的大脑程序的一部分，"没有参与这项研究的南加州大学神经科学家保罗·汤普森说。

The study strongly leans toward this possibility. Hormone surges in pregnancy might cause "pruning or cellular adaptation that is helpful," he said, streamlining certain brain areas to be more efficient at mothering skills "from nurturing to extra vigilance to teaching."

该研究强烈倾向于这种可能性。他说，怀孕期间的激素激增可能会导致一些"有用的削减和细胞适应"，从而简化脑部的某些区域，提高母亲"从提供营养到保持警惕到教育"等各方面的技能。

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