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The role of context in the acquisition, extinction and reinstatement of fear. Behavioural studies have identified a role for context in the development, extinction and reactivation of fear memories. Although there has been significant progress in delineating the neural pathways for fear conditioning, less is known about the substrates that represent the context of conditioning. This project studies the neural substrates of the processes by which context controls the acquisition, extinction and r ....The role of context in the acquisition, extinction and reinstatement of fear. Behavioural studies have identified a role for context in the development, extinction and reactivation of fear memories. Although there has been significant progress in delineating the neural pathways for fear conditioning, less is known about the substrates that represent the context of conditioning. This project studies the neural substrates of the processes by which context controls the acquisition, extinction and reactivation of fear memories. Specifically, it examines the role of information flow between the dorsal subiculum and the accumbens nucleus in the processes by which rats learn about environmental context and the control exerted by such contexts on fear memories.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989703
Funder
Australian Research Council
Funding Amount
$500,000.00
Summary
Multiphoton microscope for cellular imaging in live animals. The proposed facility will for the first time allow scientists across Sydney to monitor cell function in intact brain and muscle tissues. The novel optical approach combines fluorescent markers with sophisticated microscopy. The presence of this facility will allow Australian scientists to design new approaches to fundamental biological questions concerning cellular function within the normal environment. In addition this facility wi ....Multiphoton microscope for cellular imaging in live animals. The proposed facility will for the first time allow scientists across Sydney to monitor cell function in intact brain and muscle tissues. The novel optical approach combines fluorescent markers with sophisticated microscopy. The presence of this facility will allow Australian scientists to design new approaches to fundamental biological questions concerning cellular function within the normal environment. In addition this facility will allow PhD and post-doctoral scientists to train and have access to a rapidly developing and cutting edge approach to biological problems.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453073
Funder
Australian Research Council
Funding Amount
$129,485.00
Summary
Establishment of a South Australian rTMS Facility. It is proposed to establish a South Australian Facility for rapid rate transcranial magnetic stimulation (TMS) which will be the only one in Australia. This Facility will provide enormous opportunities for collaborative cutting edge investigations into the role of the human cortical areas in a diverse range of tasks. For example, projects have been identified projects employing rTMS to study sensorimotor cortical plasticity, facilitate functiona ....Establishment of a South Australian rTMS Facility. It is proposed to establish a South Australian Facility for rapid rate transcranial magnetic stimulation (TMS) which will be the only one in Australia. This Facility will provide enormous opportunities for collaborative cutting edge investigations into the role of the human cortical areas in a diverse range of tasks. For example, projects have been identified projects employing rTMS to study sensorimotor cortical plasticity, facilitate functional recovery following stroke and investigate the mechanisms of savant behaviour. Provision of this Facility will provide further support for this productive and internationally renowned group of scientists to develop their research programs.Read moreRead less
Long-term memory systems and the human brain. Impairment of memory is a ubiquitous feature of human brain disease. A better understanding of memory processing in the brain is key to the development of better tests for the detection and monitoring of disease progression as well as the application of improved methods of rehabilitation for patients with acquired brain injury. This project will provide the catalyst for the development of a National Memory Disorders Research Centre that would be the ....Long-term memory systems and the human brain. Impairment of memory is a ubiquitous feature of human brain disease. A better understanding of memory processing in the brain is key to the development of better tests for the detection and monitoring of disease progression as well as the application of improved methods of rehabilitation for patients with acquired brain injury. This project will provide the catalyst for the development of a National Memory Disorders Research Centre that would be the focus for multidisciplinary cognitive neuroscience research. The ultimate aim would be the translation of basic neuroscience into effective tools that will impact the health outcome of the ageing population.Read moreRead less
Imaging supra- versus sub-threshold perception: Towards a neural 'signature' of conscious experience. This is the first study to combine spatial and temporal brain measures to test the prediction that 'conscious' (versus 'unconscious') emotion perception is distinguished by responses in cortical brain regions, and by later peaks in integrative brain activity. Two additional innovative features include the simultaneous measurement of arousal (as an independent index of responses to emotion, regar ....Imaging supra- versus sub-threshold perception: Towards a neural 'signature' of conscious experience. This is the first study to combine spatial and temporal brain measures to test the prediction that 'conscious' (versus 'unconscious') emotion perception is distinguished by responses in cortical brain regions, and by later peaks in integrative brain activity. Two additional innovative features include the simultaneous measurement of arousal (as an independent index of responses to emotion, regardless of conscious awareness), and the use of psychophysical methods to establish objective thresholds for 'unconscious' and 'conscious' perception. Elucidating the neural basis of conscious emotion perception is important to understanding the mechanisms of unique human experience, and disorders of stress and anxiety.Read moreRead less
Processing of social communication calls in primate auditory cortex. This research will advance our understanding of the brain mechanisms involved in perception of sound. This will help to understand disorders of speech and hearing following brain damage and may assist in efforts to develop better hearing aids, as well as other speech recognition technologies. In addition, we will develop a primate for studying processing of sound in the brain that will be useful in future research to develop ....Processing of social communication calls in primate auditory cortex. This research will advance our understanding of the brain mechanisms involved in perception of sound. This will help to understand disorders of speech and hearing following brain damage and may assist in efforts to develop better hearing aids, as well as other speech recognition technologies. In addition, we will develop a primate for studying processing of sound in the brain that will be useful in future research to develop improved cochlear implants.Read moreRead less
Complexity in a mesoscopic model of brain dynamics. Research into how the brain work remains at the frontier of human knowledge. We possess only the vaguest idea how the brain is able to generate memories, perceptions and behaviour. This research proposal concerns new approaches aimed at bridging this gap in our understanding by developing and studying detailed theories of the brain's electrical activity. The outcomes of this work will not only suggest improved diagnostic methods and treatments ....Complexity in a mesoscopic model of brain dynamics. Research into how the brain work remains at the frontier of human knowledge. We possess only the vaguest idea how the brain is able to generate memories, perceptions and behaviour. This research proposal concerns new approaches aimed at bridging this gap in our understanding by developing and studying detailed theories of the brain's electrical activity. The outcomes of this work will not only suggest improved diagnostic methods and treatments but contribute vital knowledge about how to control and predict the behaviour of complex systems.Read moreRead less
Special Research Initiatives - Grant ID: SR0354800
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Brain and Behaviour Network. The Brain and Behaviour Network is concerned with understanding the underlying mechanisms which determine how we behave. It encompasses many disciplines including anthropology, education, ethology, neurology, neuroscience, philosophy and psychology. The Network will bring these disciplines together to create a forum to discuss and integrate the knowledge into a framework for understanding the mechanisms of behaviour and to stimulate cross-disciplinary research. The f ....Brain and Behaviour Network. The Brain and Behaviour Network is concerned with understanding the underlying mechanisms which determine how we behave. It encompasses many disciplines including anthropology, education, ethology, neurology, neuroscience, philosophy and psychology. The Network will bring these disciplines together to create a forum to discuss and integrate the knowledge into a framework for understanding the mechanisms of behaviour and to stimulate cross-disciplinary research. The framework of knowledge will lead to a greater understanding of how we behave and will improve knowledge in areas which have a major behavioural component, such as in human development and education, psychological well-being, psychiatric problems and ageing.Read moreRead less
Brain lateralization: its function, evolution, development and change with ageing. Brain research is undoubtedly one of the key research fields today. This project involves highly innovative research at the highest international level, keeping Australia at the forefront of research on brain lateralization, a very important field of brain research in humans and animals (co-founded by the applicant). This project 1) investigates dynamic changes of the developing, mature and ageing brain for vital ....Brain lateralization: its function, evolution, development and change with ageing. Brain research is undoubtedly one of the key research fields today. This project involves highly innovative research at the highest international level, keeping Australia at the forefront of research on brain lateralization, a very important field of brain research in humans and animals (co-founded by the applicant). This project 1) investigates dynamic changes of the developing, mature and ageing brain for vital functions using animal models, thus contributing importantly to our understanding of normal functions of the human brain, including some forms of mental dysfunction and also ageing; 2) trains postgraduate students at the highest standards and 3) maintains important collaboration with colleagues in Europe. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0452971
Funder
Australian Research Council
Funding Amount
$102,900.00
Summary
Optical imaging of brain activity: Studies of the neural basis of sensory perception, plasticity and behaviour. Basic to the understanding of the brain is to know how the overall architecture of the nervous system relates to its function. We propose to study this by directly visualising the regions that are functionally active in the living brains of animals, down to resolution limits of less than 100 micrometres. Such "optical imaging" will be done by recording light reflected from the surfac ....Optical imaging of brain activity: Studies of the neural basis of sensory perception, plasticity and behaviour. Basic to the understanding of the brain is to know how the overall architecture of the nervous system relates to its function. We propose to study this by directly visualising the regions that are functionally active in the living brains of animals, down to resolution limits of less than 100 micrometres. Such "optical imaging" will be done by recording light reflected from the surface of the brain, which in turn depends upon activity-dependent intrinsic signals (eg. degree of oxygenation of haemoglobin). These signals will be recorded by a special camera and amplified using the requested system.Read moreRead less