terms for baby talk

[Anat Ninio]

Dear Matthew,

I use "input language", for example in the publication below:

Ninio, A. (1986).  The direct mapping of function to form in children's 
early language.  /Journal of Psycholinguistic Research/, /15,/ 559 
(Abstr­act).

It can be downloaded from my homepage, the link is:  
micro5.mscc.huji.ac.il/~msninio/Direct-mapping.doc

I found this by searching Google for

"input language" children

which gave *28,600 *sites, and many other references.

Good luck,

Anat