Guest guest Posted December 18, 2002 Report Share Posted December 18, 2002 Dear list, Let me introduce myself. I am the parent of two children with autism, one 2.5 and the other 4 yrs. I have 2-3 questions but I will post them in different emails. Our older son is now able to sign for many items and he often has some type of vocal approximation with that sign. I read something about putting the sign on extinction. Could anyone explain that more. Thanks so much! Quote Link to comment Share on other sites More sharing options...
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