The critical period for second language pronunciation: is there such a thing?

This paper investigates the critical period hypothesis (CPH) for the acquisition of a second language sound system (phonology) in a naturalistic setting. Ten cases of successful late-starters with a native-like Hebrew pronunciation are presented in an effort to determine possible variables that may account for their exceptional accomplishment. The issue of CPH in relation to second language acquisition continues to be disputed among second language researchers.