The evaluation of 'deviant articulation' (that of young children, speech defective persons, aphasics, second-language learners) has usually consisted of two activities: transcription of the speech being evaluated, and comparison of the transcription against some 'standard' set of 'target' sounds. Any transcription is a description of a speaker's…

This paper reports on a study in which twenty young adults were tested for their ability to accurately reproduce the articulatory and prosodic features of three non-Indo-European languages in which they had received instruction. The first of two basic goals of this research was to test, at the purely phonetic level, the "critical period for…