Do teething toys disrupt how babies learn language?

Scientific American featured the work of UBC cognitive scientist Alison Bruderer in an article on the link between our perception of speech and the brain areas that control mouth movements.

In an experiment, Bruderer found that teething toys that immobilized babies’ tongues also made them unable to perceive a difference in sounds. This result indicates that even infants who don’t yet talk use their tongue to figure out speech.