Am I Normal?habits
I silently mouth the words as I read them
Subvocalisation — the silent internal voicing of text during reading — is almost universal. Visible lip movement is a less common extension of this. Speed-reading courses try to eliminate it, but research shows that subvocalisation actually aids comprehension, particularly for complex material. Attempting to suppress it while maintaining full understanding is very difficult.
Have you ever done this?
Be honest — have you ever done this?
Related fact
EEG studies show that even people who don't move their lips still have measurable electromyographic activity in the larynx when reading — evidence that the voice is running silently in everyone.