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
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
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
An investigation of limb dynamics as a constraint on human motor learning. Everyday we use our limbs to interact with a variety of objects. These objects have various mechanical characteristics (dynamics), which require the human motor system to provide appropriate control. This project seeks to understand how the brain, in both normal and disease states, learns new limb dynamics as we interact with a novel mechanical environmental. Repetitive brain stimulation will be used to selectively block ....An investigation of limb dynamics as a constraint on human motor learning. Everyday we use our limbs to interact with a variety of objects. These objects have various mechanical characteristics (dynamics), which require the human motor system to provide appropriate control. This project seeks to understand how the brain, in both normal and disease states, learns new limb dynamics as we interact with a novel mechanical environmental. Repetitive brain stimulation will be used to selectively block the contribution of various cortical regions during the learning of a new motor skill and later, the recall of that skill. This will allow us to determine definitively which areas are critical to motor skill acquisition.Read moreRead less
Discrimination learning in humans: Associative and attentional mechanisms. This project offers three major benefits: (1) Australian researchers excel in cognitive neuroscience, learning and psychopharmacology, areas based largely on animal models of human cognition. This project contributes to these areas by specifying the relationship between animal learning and human cognition; (2) the project enhances Australia's international reputation in these areas via its collaboration with a scientist ....Discrimination learning in humans: Associative and attentional mechanisms. This project offers three major benefits: (1) Australian researchers excel in cognitive neuroscience, learning and psychopharmacology, areas based largely on animal models of human cognition. This project contributes to these areas by specifying the relationship between animal learning and human cognition; (2) the project enhances Australia's international reputation in these areas via its collaboration with a scientist of Geoff Hall's stature; it also offers students outstanding research training and international exposure; (3) given Chris Mitchell's industry experience and the relevance of this work to advertising/marketing, this project will generate knowledge relevant to, and possible future collaborations with, Australian industries.Read moreRead less
The Development of Creative Thinking Ability in TAFE Design Students. The aim is to develop an instructional framework as a conceptual basis for instruction aimed at TAFE design student use of imagery in creative thinking. The research addresses the challenges of recent post-compulsory education initiatives, which include a more specific focus on the development of creative problem-solving skills, but provide little guidance on instructional strategies. The research will synthesise the framewo ....The Development of Creative Thinking Ability in TAFE Design Students. The aim is to develop an instructional framework as a conceptual basis for instruction aimed at TAFE design student use of imagery in creative thinking. The research addresses the challenges of recent post-compulsory education initiatives, which include a more specific focus on the development of creative problem-solving skills, but provide little guidance on instructional strategies. The research will synthesise the framework from theories about cognitive processes, creative problem-solving and the use of mental imagery; and the results of an imagery training program and creative problem-solving interventions. The outcome will be an instructional framework for guiding the development of student creative thinking in design-based courses in TAFE.Read moreRead less
Evaluating models of category learning that use general feature-based representations. Three competing models of human category learning will be evaluated by comparing their behaviour to human performance on an experimental task where each model makes qualitatively different predictions. A series of theoretical and algorithmic advances will be undertaken to ensure each of the category learning models uses the same feature-based representation. Because the three models propose very different lear ....Evaluating models of category learning that use general feature-based representations. Three competing models of human category learning will be evaluated by comparing their behaviour to human performance on an experimental task where each model makes qualitatively different predictions. A series of theoretical and algorithmic advances will be undertaken to ensure each of the category learning models uses the same feature-based representation. Because the three models propose very different learning processes, their comparison will give insight into the basic cognitive process of categorisation. The algorithms for generating feature representations and modelling human category learning will also have potential for application in data visualisation and information handling systems.Read moreRead less
Psychological User Profiling in the Telecommunications Industry. Recording user behaviour allows businesses to learn about their customers. This is particularly important in telecommunications, since the core business involves a large number of users who vary considerably from one another. This project combines psychological insights with modern statistical methods to develop a psychologically plausible user profiling framework, accounting for the idiosyncratic usage patterns of customers, and t ....Psychological User Profiling in the Telecommunications Industry. Recording user behaviour allows businesses to learn about their customers. This is particularly important in telecommunications, since the core business involves a large number of users who vary considerably from one another. This project combines psychological insights with modern statistical methods to develop a psychologically plausible user profiling framework, accounting for the idiosyncratic usage patterns of customers, and the way in which they change over time. The profiles will be tied to marketing prospects through interviews and surveys. Applied benefits include the ability to predict, understand and act upon user behaviour. The project also adds substantially to theories of memory, individual differences and decision-making.Read moreRead less