liè / nǎo / rén / shǒu / shù / hòu / ， / dà / nǎo / liǎng / bàn / qiú / de / xìn / xī / wú / fǎ / zhèng / cháng / jiāo / huàn / 。

裂脑人手术后，大脑两半球的信息无法正常交换。

After the commissurotomy, information between the two brain hemispheres can no longer be exchanged normally.