Elisa Nuevo Vallin: Is sign language universal? Here’s the answer | INTELLIGENT WORLD TODAY | Scoop.it
Sign languages are independent of spoken languages and follow their own paths of development. For example, although the hearing people of Spain and Argentina (or Chile, Costa Rica, México…) share the same spoken language, the Spanish Sign language (LSE) and Argentine Sign Language (LSA) are quite different and mutually unintelligible.