Developmental trajectory of tongue control for speech with real-time MRI. This project aims to evaluate the developmental trajectory of tongue control during speech, relating dynamic 3D vocal tract modelling to the acoustic signal. By optimising real-time MRI technology to capture and model articulatory movements, the project expects to accelerate understanding of how tongue control for speech is developed, mastered, and perturbed by factors such as rapid growth and foreign accent. Expected outc ....Developmental trajectory of tongue control for speech with real-time MRI. This project aims to evaluate the developmental trajectory of tongue control during speech, relating dynamic 3D vocal tract modelling to the acoustic signal. By optimising real-time MRI technology to capture and model articulatory movements, the project expects to accelerate understanding of how tongue control for speech is developed, mastered, and perturbed by factors such as rapid growth and foreign accent. Expected outcome is a new understanding of how different speakers' vocal tracts change and how speech is reshaped, informed by real physiological data. Significant benefits will be realised through refined methods and theory development for diverse fields e.g. linguistics, speech science, and automatic speech recognition/synthesis. Read moreRead less
Investigation of the component distributions of pause duration in spontaneous speech: Constraints for models of language production. We have discovered that the distribution of pause durations in spontaneous speech of individual speakers can be decomposed into at least two log-normal distributions. Our project will investigate this finding and provide a foundation for new research relevant to language production models. This will be achieved by determining the semantic, lexical, psycholinguistic ....Investigation of the component distributions of pause duration in spontaneous speech: Constraints for models of language production. We have discovered that the distribution of pause durations in spontaneous speech of individual speakers can be decomposed into at least two log-normal distributions. Our project will investigate this finding and provide a foundation for new research relevant to language production models. This will be achieved by determining the semantic, lexical, psycholinguistic, physiological, and acoustic concomitants of each component distribution and by investigating the impact of selected variables on the shape and location of each. The project has important implications for models of language production and applied problems involving automatic speech recognition, forensic speaker identification, and human communication disorders.Read moreRead less
You came TO DIE?! Perceptual adaptation to regional accents as a new lens on the puzzle of spoken word recognition. Investigating Australian, New Zealand and UK listeners adaptation to each others accents will reveal how we achieve stable word recognition via flexible adjustment to pronunciation differences. Results will inform word recognition theory and illuminate why unfamiliar accents are difficult for language learners and automatic speech recognisers.
Incremental syntactic parsing and coreference resolution. As computers become smaller, keyboards and screens become increasingly impractical. We'd like to be able to talk to our computers, but they'd have to understand what we say. This project will develop a computational model that tracks which things are talked about and identifies 'who did what to whom' in text or speech.
Discovery Early Career Researcher Award - Grant ID: DE120101289
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
How we know who is talking: talker-distinctiveness in speech timing. The goal of the project is to understand the cognitive mechanisms that underpin the human ability to recognise both words and talkers in speech. The project will produce a pan-Australian model of speech timing and employ it to predict how easily talkers can recognise each other.
Explaining the native-language listening advantage by charting neural response and perceptual adaptation across languages – but within individuals. Listening to the native language is easier than listening to a second language. This advantage is especially clear in recognising voices and in listening in noise. Identifying talkers was recently shown to involve rapid perceptual adjustment to their speech sounds, and successful listening in noise to involve adjustment of word recognition processes. ....Explaining the native-language listening advantage by charting neural response and perceptual adaptation across languages – but within individuals. Listening to the native language is easier than listening to a second language. This advantage is especially clear in recognising voices and in listening in noise. Identifying talkers was recently shown to involve rapid perceptual adjustment to their speech sounds, and successful listening in noise to involve adjustment of word recognition processes. This project tests the prediction that listeners more efficiently deploy each type of adjustment in the native than in a second language, by comparing native with second language phonetic and lexical processing within individuals. Further, a novel fMRI method in which target brain regions are defined functionally in each subject will identify the neural basis of the native listening advantage.Read moreRead less
Special Research Initiatives - Grant ID: SR0354750
Funder
Australian Research Council
Funding Amount
$20,000.00
Summary
Developmental disorders of language: Causes and treatments. Disorders in the production and comprehension of spoken and written language affect 15% of children and if untreated persist through adulthood. They are powerfully influenced by genetics, but are uniquely dependent on learning. This initiative aims to create a network unique in the world by uniting researchers with expertise in research from infancy through adulthood, in diagnosis and in treatment, in spoken and written production and c ....Developmental disorders of language: Causes and treatments. Disorders in the production and comprehension of spoken and written language affect 15% of children and if untreated persist through adulthood. They are powerfully influenced by genetics, but are uniquely dependent on learning. This initiative aims to create a network unique in the world by uniting researchers with expertise in research from infancy through adulthood, in diagnosis and in treatment, in spoken and written production and comprehension, and in both cognitive and molecular genetic research. A network of research-oriented clinics for the treatment of these disorders will also be established.Read moreRead less
An MEG (brain imaging) system to study cognitive processing in children. This project introduces the world's first brain imaging system to study cognitive processing in children, using magnetoencephalography (MEG). MEG offers precise measurement of brain activities using a non-invasive, non-contact method. MEG is an ideal brain imaging device for use with children and with special clinical populations. It promises to be valuable (a) for the identification of cortical functions of the human brain ....An MEG (brain imaging) system to study cognitive processing in children. This project introduces the world's first brain imaging system to study cognitive processing in children, using magnetoencephalography (MEG). MEG offers precise measurement of brain activities using a non-invasive, non-contact method. MEG is an ideal brain imaging device for use with children and with special clinical populations. It promises to be valuable (a) for the identification of cortical functions of the human brain prior to surgery, (b) for the diagnosis of loci for developmental and acquired brain disorders, (c) in determining pharmaceutical effects on children, and (d) in the assessment of recovery of sensory and cognitive functions following brain injury. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100318
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Solving the puzzle of complex speech sounds. Speech sounds that fall into the 'l' and 'r' family of consonants ('liquids') are amongst the most difficult to master, both for children learning their first language and for learners of a second. This is because liquids are highly complex and require finely tuned, and language specific, coordination of articulatory gestures. The details of this complexity remain poorly understood, posing significant challenges for remediation of speech errors and fo ....Solving the puzzle of complex speech sounds. Speech sounds that fall into the 'l' and 'r' family of consonants ('liquids') are amongst the most difficult to master, both for children learning their first language and for learners of a second. This is because liquids are highly complex and require finely tuned, and language specific, coordination of articulatory gestures. The details of this complexity remain poorly understood, posing significant challenges for remediation of speech errors and for effective pedagogy in language learning. This project aims to use state-of-the-art articulatory methods to examine liquids in four typologically distinct languages of increasing importance in modern Australian society to lay essential foundations for future work on remediation and instruction.Read moreRead less
Learning to read: Representations and mechanisms underlying orthographic learning. In literate societies, the ability to read is one of the most important skills an individual ever learns. There are now a number of precisely specified computational models of reading that explain detailed aspects of skilled reading behaviour. However, these models do not incorporate changes in reading ability over time - in particular, they do not explain how the ability to read is acquired. This project aims ....Learning to read: Representations and mechanisms underlying orthographic learning. In literate societies, the ability to read is one of the most important skills an individual ever learns. There are now a number of precisely specified computational models of reading that explain detailed aspects of skilled reading behaviour. However, these models do not incorporate changes in reading ability over time - in particular, they do not explain how the ability to read is acquired. This project aims to understand the learning mechanisms that give rise to skilled reading. Developing detailed models of the process of learning to read will greatly facilitate the early identification and treatment of children with reading difficulties.Read moreRead less