A description and analysis of domain theory is outlined and evaluated to highlight the difficulties of using domain theory as a basis for research into variability in interlanguage. (34 references) (VWL)

Argues that evolution of the phonological systems of natural languages and the typology of distinctive features is based on perceptual discontinuities of the auditory system. It is suggested that neonates rely on these innate sensitivities for acquisition of sound systems and that some phonological variation in early child phonology results from…

Applies two tests--local acceptability and international intelligibility--to four varieties of Nigerian English. Only one variety passes both tests, one that is associated with the most highly educated or sophisticated Nigerian speakers of the language and is intelligible internationally. (JP)