Resolving multi-sensory conflict as we age: audio-visual integration and the role of normal and abnormal sensory decline. Australia has an ageing population. Even the healthiest older individuals undergo some deterioration of vision and hearing, however, these senses are almost invariably studied in isolation. The real world is multisensory. This project will enhance our knowledge of how ageing impacts on the interpretation of visual and auditory information regarding the timing and location of ....Resolving multi-sensory conflict as we age: audio-visual integration and the role of normal and abnormal sensory decline. Australia has an ageing population. Even the healthiest older individuals undergo some deterioration of vision and hearing, however, these senses are almost invariably studied in isolation. The real world is multisensory. This project will enhance our knowledge of how ageing impacts on the interpretation of visual and auditory information regarding the timing and location of objects; essential precursors to many real world tasks, for example: driving, interpreting speech, and hazard avoidance. This knowledge is essential for the optimisation of audio-visual environments for the elderly, and for the development of tools to improve performance in the presence of sensory decline due to age-related eye disease.Read moreRead less
Understanding the consequences of normal ageing on visual form perception. Australia has an ageing population. Within the elderly, vision is a key sense that contributes significantly to the maintenance of independence, mobility and participation in society. This project will enhance our knowledge of the impact of ageing on vision. The research findings are important to a variety of disciplines involved in planning for our ageing population; for example: the design of living/working spaces for t ....Understanding the consequences of normal ageing on visual form perception. Australia has an ageing population. Within the elderly, vision is a key sense that contributes significantly to the maintenance of independence, mobility and participation in society. This project will enhance our knowledge of the impact of ageing on vision. The research findings are important to a variety of disciplines involved in planning for our ageing population; for example: the design of living/working spaces for the elderly, information technology, and the design of technology to assist with independent living. This project will train students in visual psychophysics, continuing the strong international reputation and output of Australian scientists in this discipline.Read moreRead less
New, Efficient Tests That Map Both Central and Peripheral Vision. This project seeks to develop a new, combined approach for quantifying both central and peripheral vision with a single test. Current methods for testing far peripheral vision are not efficient and not fully automated. Yet peripheral vision is important for tasks involving navigation and hazard avoidance such as driving. The project intends to invent and test new approaches to sampling and measuring the spatial extent of vision. T ....New, Efficient Tests That Map Both Central and Peripheral Vision. This project seeks to develop a new, combined approach for quantifying both central and peripheral vision with a single test. Current methods for testing far peripheral vision are not efficient and not fully automated. Yet peripheral vision is important for tasks involving navigation and hazard avoidance such as driving. The project intends to invent and test new approaches to sampling and measuring the spatial extent of vision. The anticipated algorithms will be more accurate and efficient than current tests, will be suitable for older adults, and will enable ready assessment of vision for occupational tasks.Read moreRead less
Position perception, attention, object motion, and action. The research will achieve a deeper understanding of the neural processing of the visual perception of position, and of the associated behavioural limits. This will provide a foundation for the development of a range of technologies to assist disabled and elderly people. The results will help reveal the link between the perception of moving objects and the capacity for visually guided movement. This link will benefit areas such as enginee ....Position perception, attention, object motion, and action. The research will achieve a deeper understanding of the neural processing of the visual perception of position, and of the associated behavioural limits. This will provide a foundation for the development of a range of technologies to assist disabled and elderly people. The results will help reveal the link between the perception of moving objects and the capacity for visually guided movement. This link will benefit areas such as engineering of vehicles and road systems, and the design of telepresence systems. The first applications are likely to be in the rehabilitation of brain injury and the decline of mental function with age.Read moreRead less
"Evidence based" evaluation of treatment in ADHD. Attention deficit hyperactivity disorder (ADHD) is marked by limitations in diagnostic accuracy, psychobiological characterisation and assessment of treatment efficacy. A national consortium of scientists and clinicians is planning to address these issues using an assessment protocol recently developed by the Brain Resource Company Ltd, which involves integrated neuroscientific and psychometric measurement that taps many of the brain's informati ...."Evidence based" evaluation of treatment in ADHD. Attention deficit hyperactivity disorder (ADHD) is marked by limitations in diagnostic accuracy, psychobiological characterisation and assessment of treatment efficacy. A national consortium of scientists and clinicians is planning to address these issues using an assessment protocol recently developed by the Brain Resource Company Ltd, which involves integrated neuroscientific and psychometric measurement that taps many of the brain's information processing networks. Specifically, the aims of the project are to identify biological and cognitive markers that reflect ADHD in its untreated form, and markers that discriminate treatment effects relative to the pre treatment profile. The results from this study will be translated into a product that uses the protocol to provide a service able to profile ADHD more accurately and evaluate the effects of treatment.Read moreRead less
Wiring the retina for human vision - a single-cell behavioural approach. This project aims to combine optical and behavioural methods to explore how colour information is channelled from individual cone photoreceptors through the living human retina, to the brain. By non-invasively stimulating either a single cell or specific arrangements of cells, the project aims to contribute fundamental knowledge about how the retina is wired to inform our exquisite sense of colour and spatial vision. This u ....Wiring the retina for human vision - a single-cell behavioural approach. This project aims to combine optical and behavioural methods to explore how colour information is channelled from individual cone photoreceptors through the living human retina, to the brain. By non-invasively stimulating either a single cell or specific arrangements of cells, the project aims to contribute fundamental knowledge about how the retina is wired to inform our exquisite sense of colour and spatial vision. This understanding has consequences across a range of disciplines, including artificial vision systems such as driverless cars, retinal disease, and the processing of information through neuronal connections in general.Read moreRead less
The impact of female sex hormones on neurodevelopment. This project aims to characterise the contribution of sex hormones to the development of emotional brain circuits in female adolescents. Puberty is associated with profound changes in emotional behaviours in females, but we know little about the underlying brain mechanisms. In particular, research has neglected to consider the role of the sex hormones for which changes are a defining feature of female puberty (eg, oestradiol). This work will ....The impact of female sex hormones on neurodevelopment. This project aims to characterise the contribution of sex hormones to the development of emotional brain circuits in female adolescents. Puberty is associated with profound changes in emotional behaviours in females, but we know little about the underlying brain mechanisms. In particular, research has neglected to consider the role of the sex hormones for which changes are a defining feature of female puberty (eg, oestradiol). This work will be the first to comprehensively advance our understanding of the unique role of sex hormones in shaping the adolescent female brain. It will provide critical understanding of how individual differences in hormonal factors increase risk for emotional problems in females, and inform treatment strategies.Read moreRead less
The psychobiology of forgetting: Opioid receptors and inhibitory constraints on storage of long-term memory. This project has four main national benefits. First, it addresses a fundamental scientific and practical issue: the psychobiology of forgetting. Second, it will provide important insights into variations in memory functioning across the lifespan. A significant challenge facing Australia is understanding, and where possible alleviating, the decline in mental function that occurs with age. ....The psychobiology of forgetting: Opioid receptors and inhibitory constraints on storage of long-term memory. This project has four main national benefits. First, it addresses a fundamental scientific and practical issue: the psychobiology of forgetting. Second, it will provide important insights into variations in memory functioning across the lifespan. A significant challenge facing Australia is understanding, and where possible alleviating, the decline in mental function that occurs with age. This project may help identify targets to alleviate age-related impairments in memory. Third, this project will contribute to Australia's international reputation in behavioural neuroscience. Fourth, this project will provide outstanding training opportunities for Australian undergraduate and postgraduate research students in behavioural neuroscience.Read moreRead less
Models of adolescent drug use and its consequences. Recent concerns surround the impact of drug abuse - particularly binge drinking, inhalant abuse and cannabis use - on the mental health of adolescents. Early drug use is associated with mental health problems although the mechanisms involved are not well characterised. The present proposal aims to use animal models to characterise substance abuse that occurs during the adolescent period and to investigate its effects on brain and behaviour. Inc ....Models of adolescent drug use and its consequences. Recent concerns surround the impact of drug abuse - particularly binge drinking, inhalant abuse and cannabis use - on the mental health of adolescents. Early drug use is associated with mental health problems although the mechanisms involved are not well characterised. The present proposal aims to use animal models to characterise substance abuse that occurs during the adolescent period and to investigate its effects on brain and behaviour. Increasing our knowledge of the causes and consequences of adolescent drug abuse will improve Australia's ability to confront this problem and to develop early interventions and treatments that minimise associated harms.Read moreRead less
Human visual determination of shape. Visual coding of shape is central to our ability to interact with objects effectively. The visual system contains processes that are specific to particular shapes and this work aims to determine how those processes are used by the system in visual analysis. The work will advance theoretical understanding, and will contribute to the training of the next generation of researchers but also has the potential to provide information that enables display designers ....Human visual determination of shape. Visual coding of shape is central to our ability to interact with objects effectively. The visual system contains processes that are specific to particular shapes and this work aims to determine how those processes are used by the system in visual analysis. The work will advance theoretical understanding, and will contribute to the training of the next generation of researchers but also has the potential to provide information that enables display designers to determine the most efficient way to detect and present pattern information. This may lead to simplified methods for creating objects that are equally effective in conveying information and more rapid scene analysis. Read moreRead less