Not only could they not communicate, but they were left without a code to think in.
~ How Deaf People Think
This post is long overdue and thus it has been quite sometime since reading the article, but still something to think about. After reading this article, I realised that I had never quite thought of how one who has never heard sound would think in their mind. When random thoughts float around my mind, they are definitely quite literally a "voice" that is there blabbering away. It made sense that deaf people's inner "voice" would be how they normally communicate - sign language, but I still somehow find it mind boggling!
After reading the article, I thought to myself - what would I do if I did not have an inner voice? Would I still be able to think? I know this isn't the focus of the article, but the thought was probably triggered by the section about deaf people who were forced to communicate only via spoken language and therefore never really formed an inner voice. Luckily research has found that forcing deaf people to communicate exclusively with spoken language only is detrimental to their brain development.
It is good that with more knowledge people are (hopefully) not being forced to do something they are not naturally inclined to do. I for one cannot imagine not having an inner voice or some way to talk to myself and think in my head.