The brains of these children develop abnormally: their cerebral cortex is slightly smaller than usual, and a 2008 study in mice showed that cells in the cerebellum are also atypical.

• 这些儿童的大脑发育异常：他们的大脑皮层比通常的稍微小些，而且一项2008年对老鼠的研究表明其小脑中的细胞也是反常的。