General   (General discussion, talk about anything.)

That is a very well thought out point, tom.

A number of neurological syndromes exist in which cognition is demonstrable, but the person cannot put any of it into language. There are two particular areas of brain needed for language processing, and they can become effectively disconnected.

You could ask if someone whose primary or only language was sign language, needed visual images of their signs in order to think, and clearly they do not.