Contrary to popular belief, language is not limited to speech. In a recent study published in the journal PNAS, Northeastern University Prof. Iris Berent reveals that people also apply the rules of their spoken language to sign language.
Humans favor speech as the primary means of linguistic communication. Spoken languages are so common many think language and speech are one and the same. But the prevalence of sign languages suggests otherwise. Not only can Deaf communities generate language using manual gestures, but their languages share some of their design and neural mechanisms with spoken languages. New research by Northeastern University’s Prof. Iris Berent further underscores the flexibility of human language and its robustness across both spoken and signed channels of communication.