When the brains of the mother rats were examined, researchers found fewer degenerating cells in the cingulate, frontal and parietal cortices , regions that receive considerable sensory input.

• 当研究人员检视这些母鼠的脑子时，发现在扣带、叶及顶叶等接收大量感觉输入的脑皮质区，较少出现退化萎缩的细胞。