Women who are pregnant often report feeling a little fuzzy, a little dim and more forgetful than usual, but medical research has produced mixed data to support the so-called “baby brain” phenomenon.
孕妇常会觉得有些迷糊,较怀孕之前健忘不少,而针对这样的“孕傻”现象,医学研究给出了有多重数据支持的解释。
Now a study that used functional magnetic resonance imaging (fMRI) confirms that mothers lose brain volume when they’re pregnant, adding to the debate.
最近,一项研究借助功能性磁共振成像,证实了孕妇的大脑会缩水,由此引发一场热议。
The authors of the new study, which was published in Nature Neuroscience, suspect the reductions they’ve detected may be a side-effect of “synaptic pruning,” which also happens to humans at age three and again during adolescence.
这项全新的研究被刊登在《自然神经学》杂志上,其研究团队猜想该现象是由“神经元剪切”导致的副作用 — 一般来说,人类会在三岁时经历第一次“神经元剪切”,怀孕时经历第二次。
In pregnant women, they speculate, the gray matter shrinkage may function as a similar kind of decluttering, but one that would optimize a woman’s ability to sense what’s going on for other people, what their moods are, and when the emotional weather is shifting.
研究人员推测,孕妇的灰质萎缩现象有点类似于“清理内存”,实际上会有助于她们去感知他人的状态与情绪的变化。
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