14th International Congress of Phonetic Sciences (ICPhS-14)

San Francisco, CA, USA
August 1-7, 1999

Representational Specificity of Lexical Form in the Production and Perception of Spoken Words

Paul A. Luce, Jan Charles-Luce, Conor McLennan

University at Buffalo, Buffalo, NY, USA

We examined the specificity and abstractness of formbased lexical representations of spoken words. Using a repetition-priming paradigm, we attempted to determine if flapped intervocalic alveolar stops in American English are mapped onto underlying representations of /t/ and /d/ or if flaps have an independent representational status. Subjects shadowed spoken words in two blocks of trials. Stimuli in the first block served as primes and those in the second block as targets. Primes and targets consisted of flapped and carefully articulated bisyllabic words. We measured shadowing times to target words in the second block as a function of prime type. We also examined subjects' productions of the targets. In particular, we measured vowel duration as a correlate of voicing. The shadowing time results provide evidence for underlying perceptual representations. The analysis of subjects' productions indicate that underlying representations subserving speech production can be primed to accentuate the surface realization of underlying /t/ and /d/.

Full Paper

Bibliographic reference.  Luce, Paul A. / Charles-Luce, Jan / McLennan, Conor (1999): "Representational specificity of lexical form in the production and perception of spoken words", In ICPhS-14, 1889-1892.