translation.en: Why would somebody -- and this person is perfectly lucid and intelligent in all other respects, but when he sees his mother, his delusion kicks in and says, it's not mother.
translation.zh: 为什么这个人完全清醒和理智, 在所有其它方面，但当他看见他母亲时， 他的错觉就出现，并说“这不是我母亲”。