Intracortical inhibition evaluated by paired-pulse TMS during choice and simple reaction time tasks. The research will investigate the neurophysiological processes responsible for the selection and initiation of movement in response to an external stimulus. Slowness in the initiation and execution of movement is a common feature of 'neurological aging', neurodegenerative disease, and brain injury. Understanding the brain mechanisms involved in response selection and movement initiation will pro ....Intracortical inhibition evaluated by paired-pulse TMS during choice and simple reaction time tasks. The research will investigate the neurophysiological processes responsible for the selection and initiation of movement in response to an external stimulus. Slowness in the initiation and execution of movement is a common feature of 'neurological aging', neurodegenerative disease, and brain injury. Understanding the brain mechanisms involved in response selection and movement initiation will provide information for the development of specific intervention techniques to improve motor function in these groups.Read moreRead less
Neural correlates of performance trade-offs and interference in dual-task performance. Our daily lives are characterised by our ability to produce and sustain a wide range of different movement patterns and to deliberately change patterns as the situation demands. In this project we seek to understand the relationship between brain processes, attentional demands, and the control and learning of coordinated behaviour. A further aim will be to examine how this relationship may be altered as a re ....Neural correlates of performance trade-offs and interference in dual-task performance. Our daily lives are characterised by our ability to produce and sustain a wide range of different movement patterns and to deliberately change patterns as the situation demands. In this project we seek to understand the relationship between brain processes, attentional demands, and the control and learning of coordinated behaviour. A further aim will be to examine how this relationship may be altered as a result of aging, degenerative disease, or brain damage. This research will provide a foundation upon which rehabilitation strategies can be developed for the movement impaired.Read moreRead less
Children's difficulties in learning to read: Causes and consequences of poor letter-sound knowledge. This research will identify the causes and treatments of reading impairment in children. This will help the Government counter the effects of poor reading instruction in Australian schools (see the National Inquiry into the Teaching of Literacy). The outcomes will reveal how struggling readers should be taught in classrooms, and which treatments should be covered by the Reading Assistance Voucher ....Children's difficulties in learning to read: Causes and consequences of poor letter-sound knowledge. This research will identify the causes and treatments of reading impairment in children. This will help the Government counter the effects of poor reading instruction in Australian schools (see the National Inquiry into the Teaching of Literacy). The outcomes will reveal how struggling readers should be taught in classrooms, and which treatments should be covered by the Reading Assistance Voucher programme. Treating reading impairment in children will reduce the number of teenagers who attempt suicide, drop out of school, or abuse drugs to try and escape the failure that accompanies poor reading ability.Read moreRead less
How does Motor Cortex Excitability Influence Internal Model Retention. Each year 40,000 Australians suffer from stroke with many survivors left with problems that limit limb function. With reduced duration of hospital care, the opportunities for retraining in the period immediate following stroke are rapidly diminishing. Effective and efficient strategies of rehabilitation that will maximise the level of recovery following stroke will result in benefits expressed in terms of enhanced quality of ....How does Motor Cortex Excitability Influence Internal Model Retention. Each year 40,000 Australians suffer from stroke with many survivors left with problems that limit limb function. With reduced duration of hospital care, the opportunities for retraining in the period immediate following stroke are rapidly diminishing. Effective and efficient strategies of rehabilitation that will maximise the level of recovery following stroke will result in benefits expressed in terms of enhanced quality of life and functional life-span, as well as significantly reduced costs of health care. In understanding the fundamental principles underlying the stability and adaptability of movement coordination, this research is likely to make a significant contribution to the design of programs for rehabilitation of the upper limb.Read moreRead less
The development of feedforward mechanisms of motor control: The role of efference copy in motor skill development. Our work provides preliminary evidence that deficits in efference copy (or feedforward planning) underlie impaired motor skill development in children (or Developmental Coordination Disorder - DCD). The aim of this project is to advance our understanding of normal and abnormal motor development by examining this hypothesis in a large sample, longitudinally. We will examine variati ....The development of feedforward mechanisms of motor control: The role of efference copy in motor skill development. Our work provides preliminary evidence that deficits in efference copy (or feedforward planning) underlie impaired motor skill development in children (or Developmental Coordination Disorder - DCD). The aim of this project is to advance our understanding of normal and abnormal motor development by examining this hypothesis in a large sample, longitudinally. We will examine variations in the presentation of clumsiness, cognitive deficit(s) in different subtypes, and changes in presentation with age. We predict that deficits in efference copy will explain departures from normal motor skill development in most children. We also predict that imagery training will ameliorate the deficit.Read moreRead less
Development of rapid, online motor control in children. Movement is the primary means by which young children develop understanding of the world. The studies described in this project will provide important insights into the development of movement skill in children and the underlying causes of motor impairment. In particular we aim to understand how thought and action are coordinated in children, supporting the ability to perform more efficient movements. Hence, our work will inform the traini ....Development of rapid, online motor control in children. Movement is the primary means by which young children develop understanding of the world. The studies described in this project will provide important insights into the development of movement skill in children and the underlying causes of motor impairment. In particular we aim to understand how thought and action are coordinated in children, supporting the ability to perform more efficient movements. Hence, our work will inform the training and practice of movement educators and physical therapists, transcending some of the myths of clinical theory. This work will have important implications for identifying and training children at risk for motor impairment. Read moreRead less
Facilitatory and inhibitory mechanisms during interlimb coordination in young and older adults. The project seeks to understand how people coordinate their limbs and the factors which limit and enhance this capacity. This is of critical importance because coordination is a dominant deficit in aging and in patients suffering brain insult and neurodegenerative diseases. Disruption of this capacity compromises individual work productivity, mobility and independence. Proficient motor functioning is ....Facilitatory and inhibitory mechanisms during interlimb coordination in young and older adults. The project seeks to understand how people coordinate their limbs and the factors which limit and enhance this capacity. This is of critical importance because coordination is a dominant deficit in aging and in patients suffering brain insult and neurodegenerative diseases. Disruption of this capacity compromises individual work productivity, mobility and independence. Proficient motor functioning is an important lifestyle factor as humans age and deficits in coordinated muscle activity will increase the risk of falls which are the leading cause of injury in elderly adults. Identification of changes in brain processes involved in interlimb coordination will allow for the development of strategies to improve motor functions in the aged.Read moreRead less
Interlimb coordination dynamics in stroke. Everyday we use our limbs in a coordinated manner. However, for a person who has suffered a stroke resulting in weakness on one side of the body even the simplest interlimb coordination tasks are difficult to perform. This project will examine interlimb coordination in persons who have suffered a stroke and explore whether the coupling between limbs can be exploited to promote fuctional recovery of an impaired limb. In particular, the research seeks to ....Interlimb coordination dynamics in stroke. Everyday we use our limbs in a coordinated manner. However, for a person who has suffered a stroke resulting in weakness on one side of the body even the simplest interlimb coordination tasks are difficult to perform. This project will examine interlimb coordination in persons who have suffered a stroke and explore whether the coupling between limbs can be exploited to promote fuctional recovery of an impaired limb. In particular, the research seeks to identify the critical components underlying the effectiveness of an intervention involving the pratice of actions bilaterally and simultaneously.Read moreRead less
Captions for the Deaf and Hearing Impaired: Availability versus Accessibility. The availability of educational, informational and recreational services for deaf and hearing-impaired people has been dramatically facilitated by (i) increased television captioning due to the 2001 introduction of the Television Broadcasting Services Act; and (ii) trial introduction of real-time captioning in educational settings. These innovations must be matched by equally innovative ways of increasing the accessib ....Captions for the Deaf and Hearing Impaired: Availability versus Accessibility. The availability of educational, informational and recreational services for deaf and hearing-impaired people has been dramatically facilitated by (i) increased television captioning due to the 2001 introduction of the Television Broadcasting Services Act; and (ii) trial introduction of real-time captioning in educational settings. These innovations must be matched by equally innovative ways of increasing the accessibility of captions, which is currently limited by English literacy, caption speed, and caption reduction techniques. Here, systematic manipulation of these factors in experiments on television captioning with adults and educational captioning with children will determine how resources might best be directed to improving caption accessibility.Read moreRead less
Emotion in voice matters: Advancing a neural model of auditory emotion perception. Accurate perception of emotion in others is fundamental for positive social relationships, and speaking is the most common source of information from which a person will infer emotional intent. This project capitalises on recent advances in brain imaging technologies to develop a neural theory of vocal emotion perception that integrates research across neuro-cognitive, affective, and language disciplines. This wi ....Emotion in voice matters: Advancing a neural model of auditory emotion perception. Accurate perception of emotion in others is fundamental for positive social relationships, and speaking is the most common source of information from which a person will infer emotional intent. This project capitalises on recent advances in brain imaging technologies to develop a neural theory of vocal emotion perception that integrates research across neuro-cognitive, affective, and language disciplines. This will put Australia at the forefront of an important emerging research field 'social neuroscience', raising our international profile in this area. Findings will provide the theoretical knowledge that is currently lacking in the development of targeted remediation programs for individuals suffering from social communication problems.Read moreRead less