title: Socio-demographic influences on language structure and change: Not all learners are the same.
abstract: The Now-or-Never bottleneck has important consequence for understanding why languages have the structures they do. However, not addressed by C&C is that the bottleneck may interact with who is doing the learning: While some languages are mostly learned by infants, others have a large share of adult learners. We argue that such socio-demographic differences extend and qualify C&C's thesis.
authors: Cognitive and Information Sciences, University of California, Merced, Merced, CA 95343. tbergmann@ucmerced.edu http://www.tillbergmann.com
authors: Till
authors: T
authors: Bergmann
authors: Cognitive and Information Sciences, University of California, Merced, Merced, CA 95343.  rdale@ucmerced.edu http://cognaction.org/rick/
authors: Rick
authors: R
authors: Dale
authors: Department of Psychology, University of Wisconsin-Madison, Madison, WI 53706. glupyan@gmail.com http://sapir.psych.wisc.edu/
authors: Gary
authors: G
authors: Lupyan
mesh_terms: D003710:Demography; D034462:Dissent and Disputes; D006801:Humans; D007802:Language; D007804:Language Development; D007858:Learning