Spanish is one of the most widely spoken languages in the world. Quechua is the largest indigenous language family to constitute the first language (L1) of second language (L2) Spanish speakers. Despite sheer number of speakers and typologically interesting contrasts, Quechua-Spanish second language acquisition is a nearly untapped research area,…

Psycholinguistic and neurological examination of the use of duality of patterning as a primary criterion for determining if a system is a (signed or spoken) language revealed the existence of duality in processes that facilitate language acquisition. (27 references) (Author/CB)