Ambridge's proposal cannot account for the most basic observations about phonological patterns in human languages. Outside of the earliest stages of phonological production by toddlers, the phonological systems of speakers/learners exhibit internal behaviours that point to the representation and processing of inter-related units ranging in size…

This dissertation examines the question of how phonological alternations are learnt. In constraint-based models of phonological learning, it is hypothesized that prior learning of phonotactics from the lexicon facilitates the learning of alternations. While this is an influential assumption, the empirical evidence for it is equivocal. In this…

This corpus-based study provides a baseline of complex word usage patterns in the spontaneous speech of English preschool children to ascertain the characteristics of their derivative vocabulary before literacy development affects language skills. Frequencies of suffixed derivatives produced by (N = 243) children aged 2-5 and their caregivers were…

This dissertation begins with the observation of a typological asymmetry within phonological patterns related to phonetic naturalness. Patterns that are rooted within existing tendencies of perception and/or production--in other words, patterns that are phonetically "natural"--are common in phonological typology and seen in a variety of…

Some of recently proposed phonotactic learners are tier-based bigram learners that restrict their hypothesis space to patterns between two segments that are adjacent at the tier level. This assumption is understandable considering that typologically frequent nonadjacent sound patterns are predominantly those that hold between two tier-adjacent…

Providing evidence for the universal tendencies of patterns in the world's languages can be difficult, as it is impossible to sample all possible languages, and linguistic samples are subject to interpretation. However, experimental techniques, such as artificial grammar learning paradigms, make it possible to uncover the psychological reality of…

Some syllables are louder, longer and stronger than other syllables at the lexical level. These prominent prosodic characteristics of certain syllables are captured by suprasegmental features including fundamental frequency, duration and intensity. A language like English uses fundamental frequency, duration and intensity to distinguish stressed…

Addresses the relationship between phonology and morphology, using the vowel alternations of Standard German Umlaut and Ablaut as relevant examples. The article analyzes Umlaut as a completely unified process of vowel fronting, whereas it argues that Ablaut is synchronically a totally unpredictable vowel change found in the paradigms of strong…

Measurement of the mutual intelligibility of dialects of a language is discussed. The focus is on several theoretical constructs in measurement, illustrated with data from an earlier study of the mutual intelligibility of 17 Chinese dialects. Measurement procedures are also explained. It is proposed that mutual intelligibility is based on the…

This article reviews recent research on phonological development and characteristics associated with different forms of delay. Language-delayed students are considered categorizable at 24 months as either "late talkers" with no major deviations from patterns of normal acquisition or disordered students whose developmental patterns are markedly…

A mother's interactions with her young daughter were studied with special emphasis placed upon the frequencies of linguistically instructional input and the strategies employed to provide this information. The girl was between 18 and 28 months old and her mean length of utterance (MIU) was between 1.5 and 4.3 morphemes. Only maternal input was…

An analysis of verbs in Tlingit, a U.S. Northwest Coast Indian language, begins with an overview of its situation and usage and of previous research. The second chapter sketches its phonological and syntactic characteristics. Subsequent chapters deal specifically with the verb. An analysis of verb categories distinguishes two groups: argumental…

Two studies of adult aphasia, focusing on phonological disturbances, are presented. In the first study, subjects were 15 adults wit moderate aphasia and five age-matched controls. A variety of speech production and speech perception tests were administered, including tests of syllable discrimination, auditive word-picture matching, articulation,…