An Acoustic – Phonetic Study of Internal Open Juncture

Lehiste, Ilse

doi:10.1159/000258062

Cited by 110 publications

(125 citation statements)

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“…Lehiste (1960) and Nakatani and Dukes (1977) both note that word boundaries are much better marked at the allophonic than at the phonemic level. However, they provide no formal architecture for managing allophones in relation to hierarchical prosodic structure.…”

Section: Bootstrapping Confluencementioning

confidence: 99%

Phonetic Diversity, Statistical Learning, and Acquisition of Phonology

2003

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In learning to perceive and produce speech, children master complex language-specific patterns. Daunting language-specific variation is found both in the segmental domain and in the domain of prosody and intonation. This article reviews the challenges posed by results in phonetic typology and sociolinguistics for the theory of language acquisition. It argues that categories are initiated bottom-up from statistical modesin use of the phonetic space, and sketches how exemplar theory can be used to model the updating of categories once they are initiated. It also argues that bottom-upinitiation of categories is successful thanks to the perceptionproduction loop operating in the speech community. The behavior of this loop means that the superficial statistical properties of speech available to the infant indirectly reflect the contrastiveness and discriminability of categories in the adult grammar. The article also argues that the developing system is refined using internal feedback from type statistics over the lexicon, once the lexicon is well-developed. The application of type statistics to a system initiated with surface statistics does not cause a fundamental reorganization of the system. Instead, it exploits confluences across levels of representation which characterize human language and make bootstrapping possible.

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Section: Bootstrapping Confluencementioning

confidence: 99%

Phonetic Diversity, Statistical Learning, and Acquisition of Phonology

2003

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“…Once again, there is empirical evidence that adult listeners take advantage of such phonotactic patterns in segmenting and recognizing words (McQueen, 1998;Vitevitch & Luce, 1999). Finally, another source of information in the acoustic signal that potentially cues word boundaries resides in the positioning of certain allophones (Bolinger & Gerstman, 1957;Church, 1987;Hockett, 1955, Lehiste, 1960. Allophones of a given phoneme are often restricted with respect to their position within words.…”

Section: Introductionmentioning

confidence: 99%

Lexical viability constraints on speech segmentation by infants

Johnson

Jusczyk

Cutler

et al. 2003

Cognitive Psychology

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The Possible Word Constraint limits the number of lexical candidates considered in speech recognition by stipulating that input should be parsed into a string of lexically viable chunks. For instance, an isolated single consonant is not a feasible word candidate. Any segmentation containing such a chunk is disfavored. Five experiments using the head-turn preference procedure investigated whether, like adults, 12-month-olds observe this constraint in word recognition. In Experiments 1 and 2, infants were familiarized with target words (e.g., rush), then tested on lists of non-

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“…At the prelexical level, a variety of cues have been proposed, allowing segmentation through the use of acoustic cues to word onsets (Lehiste, 1960;Nakatani & Dukes, 1977) or from knowledge of statistical regularities of lexical items (such as distributional regularity, phonotactics, or metrical stress; see Brent & Cartwright, 1996;Cairns, Shillcock, Chater, & Levy, 1997;Cutler & Norris, 1988). However, because not all words can be segmented in this way, accounts of spoken word recognition also incorporate mechanisms by which lexical identification can contribute to speech segmentation.…”

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confidence: 99%