My son is 9 and still can't read in his head. He says that he has no inner voice and doesn't think in words. His reading level is normal to above average for his age. Is it possible that he will never be able to read in his head? I don't know if how he thinks has anything to do with it. I have been researching this and only 26% of people have an inner voice, but everyone I ask says they have one. It's not a big problem accept he gets told off for whispering to himself. He also says everything he thinks and talks constantly . He has normal development though, and he understands social interaction. Does anyone else have experience of this?