The basics of reading: How are letter-strings identified as words? In order for people to read effectively, the mental representation of each letter-string must be found in long-term memory. The aim of this project is to more fully understand the nature of proficient visual word recognition with a particular focus on the way in which the form of the word is mentally stored and retrieved during the act of reading. A range of issues will be examined from letter position coding through to how words ....The basics of reading: How are letter-strings identified as words? In order for people to read effectively, the mental representation of each letter-string must be found in long-term memory. The aim of this project is to more fully understand the nature of proficient visual word recognition with a particular focus on the way in which the form of the word is mentally stored and retrieved during the act of reading. A range of issues will be examined from letter position coding through to how words with a complex internal structure are processed, all framed within a unified model of word recognition. An understanding of the mechanisms underlying proficient adult reading is significant and beneficial in that it is expected to provide a framework for guiding both reading acquisition and reading improvement programs.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130100868
Funder
Australian Research Council
Funding Amount
$336,284.00
Summary
Neural mechanisms of inhibitory control of human speech in stutterers and non-stutterers. Stopping oneself from speaking is a crucial communication function. In people who stutter, a disorder of this function causes their debilitating speech problem. This project will use cutting edge neuroimaging techniques to reveal how the brain stops speech in stutterers and in fluent speakers.
Cracking the orthographic code: investigating early perceptual processes in reading. Current understanding of how human readers decode a string of letters into known words is inadequate. This project advances understanding of this early reading process, by combining computational modelling, behavioural and brain imaging approaches.
The flipside of noise: Does it benefit listening and learning? People with low attention capacity can experience improvements in cognitive function (eg memory) in the presence of external white noise. This project aims to determine the brain mechanisms for this improvement and how it affects oral language comprehension and verbal learning. In doing so, the research would change the prevailing view that noise is always detrimental to mental processes, and provide a theoretical framework for predi ....The flipside of noise: Does it benefit listening and learning? People with low attention capacity can experience improvements in cognitive function (eg memory) in the presence of external white noise. This project aims to determine the brain mechanisms for this improvement and how it affects oral language comprehension and verbal learning. In doing so, the research would change the prevailing view that noise is always detrimental to mental processes, and provide a theoretical framework for predicting how an individual’s cognitive capacity is affected by the presence of noise. It may support the development of methods to improve educational participation and outcomes for children, particularly those with lower attention, and for older adults.Read moreRead less
Beyond reading jumbled words: Bridging perception and language in the Noisy Channel model. Classic computational models of visual word recognition do not consider the noise present in early perceptual processes, and they cannot cope with “jubmled wrods”- words with distorted letter order, unlike skilled readers. Previous work has developed the Noisy Channel model which can recognise such words, modelled as an optimal Bayesian inference process operating on a noisy visual input where there is unc ....Beyond reading jumbled words: Bridging perception and language in the Noisy Channel model. Classic computational models of visual word recognition do not consider the noise present in early perceptual processes, and they cannot cope with “jubmled wrods”- words with distorted letter order, unlike skilled readers. Previous work has developed the Noisy Channel model which can recognise such words, modelled as an optimal Bayesian inference process operating on a noisy visual input where there is uncertainty in the identity and order of letters. In this project, using computational modeling and behavioural experiments, the scope of the Noisy Channel model will be extended to address the role of phonology in the early stages of reading. The outcome will be a better understanding of the link between visual perception and language.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
Cognitive and neural causes of language impairment in autism. Autism affects around 1 in 200 of the Australian population. The social costs of autism are huge, both for people with the disorder and for their relatives and carers. The cost to the Australian economy is estimated at $5-7 billion each year. The proposed research will lead to better understanding of the causes of autism, from brain structure and functioning through to cognitive mechanisms and symptoms. This will in turn inform geneti ....Cognitive and neural causes of language impairment in autism. Autism affects around 1 in 200 of the Australian population. The social costs of autism are huge, both for people with the disorder and for their relatives and carers. The cost to the Australian economy is estimated at $5-7 billion each year. The proposed research will lead to better understanding of the causes of autism, from brain structure and functioning through to cognitive mechanisms and symptoms. This will in turn inform genetic research. The comparison of autism and specific language impairment (SLI) will help determine whether remediation strategies for SLI are likely to be applicable to autism. The project will establish Macquarie University as Australia's first centre for neuro-cognitive autism research.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220100323
Funder
Australian Research Council
Funding Amount
$417,505.00
Summary
I can't find the word! Reading to maintain communication skills in ageing. This project aims to investigate why, as we age, we have trouble retrieving words when we speak but not when we read aloud. It takes the novel approach of systematically testing both reading and speaking in the same older adults. Through its innovative use of both behavioural research and computational modelling, it will generate new knowledge in spoken word production and reading, areas in which the project team have ack ....I can't find the word! Reading to maintain communication skills in ageing. This project aims to investigate why, as we age, we have trouble retrieving words when we speak but not when we read aloud. It takes the novel approach of systematically testing both reading and speaking in the same older adults. Through its innovative use of both behavioural research and computational modelling, it will generate new knowledge in spoken word production and reading, areas in which the project team have acknowledged expertise. This project will advance theories, achieving understanding of how ageing affects the cognitive systems involved in saying words and reading them aloud. By also investigating whether reading aloud can support word retrieval, it has potential future benefit for improved communication in older adults.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