Classi¿ cation of Regional Language Varieties 221Pierrehumbert, Janet B. 2002. Word-speci¿ c phonetics. In Carlos Gussenhoven and
Natasha Warner (eds), Laboratory Phonology VII. Berlin: Mouton de Gruyter,
101–140.
Pisoni, David B. 1973. Auditory and phonetic memory codes in the discrimination of
consonants and vowels. Perception and Psychophysics 13 (2): 253–260.
Pittam, Jeffery. 1994. Voice in social interaction. London: Sage.
Preston, Dennis R. 1993. Folk dialectology. In Dennis R. Preston (ed.), American dia-
lect research. Philadelphia: John Benjamins, 333–378.
Rakerd, Brad and Bartlomiej Plichta. 2003. More on perceptions of /a/ fronting. Paper
presented at New Ways of Analyzing Variation 32: Philadelphia, October 9–12.
Ryan, Ellen Bouchard and Howard Giles (eds). 1982. Attitudes towards language
variation. London: Edward Arnold.
Strand, Elizabeth A. 1999. Uncovering the role of gender stereotypes in speech per-
ception. Journal of Language and Social Psychology 18 (1): 86–100.
Stuart-Smith, Jane, Claire Timmins, and Gwilym Pryce. 2005. Explaining phono-
logical variation and change in an urban vernacular: Does television play a role?
Paper presented at New Ways of Analyzing Variation 34: New York, NY, October
20–23.
Tees, Richard C. and Janet F. Werker. 1984. Perceptual À exibility: Maintenance or
recovery of the ability to discriminate non-native speech sounds. Canadian Jour-
nal of Psychology 38 (4): 579–590.
Thomas, Erik R. 2001. An acoustic analysis of vowel variation in New World English.
Durham, NC: Duke University Press.