Great question! Consulting the interwebs I found on a ‘Caption Call’ service website the following in relation to hearing an ‘inner voice’Just out of curiosity, I wonder what people who are born deaf hear in their mind when they think?
If they’ve ever heard their voice, deaf people may have a “speaking” internal monologue, but it’s also possible that this internal monologue may be present without a “voice.” When asked, most deaf people report that they don’t hear a voice at all. Instead, they see the words in their head through sign language.
The article goes on to state that people born deaf have never heard a voice and their response to the inner voice question is ‘no’.