“…They imply that language is a central function with expressive and receptive qualities, whereas we believe them to be two independently evolved functions that are joined by cultural contingencies. However, after Naming develops, listener and speaker repertoires become joined or integrated in what initially were developmentally independent repertoires (Greer, 2008;Greer & Keohane, 2005Greer & Ross, 2004;Greer & Speckman, 2009;Horne & Lowe, 1996).…”