Probing Anaesthetic Effects with New Functional Imaging Paradigms. This project seeks new insights into the effects of anaesthetics on brain function and repair. Anaesthesia is used in small-animal imaging to immobilise the animal, but in many cases the anaesthesia itself affects the neurophysiological parameters under study. It has also been shown that many anaesthetics enhance recovery after brain injury in small animals. This project plans to exploit a novel functional brain-imaging technique ....Probing Anaesthetic Effects with New Functional Imaging Paradigms. This project seeks new insights into the effects of anaesthetics on brain function and repair. Anaesthesia is used in small-animal imaging to immobilise the animal, but in many cases the anaesthesia itself affects the neurophysiological parameters under study. It has also been shown that many anaesthetics enhance recovery after brain injury in small animals. This project plans to exploit a novel functional brain-imaging technique for conscious animals to gain new insights into the effects of anaesthetics on brain function and recovery from injury. The knowledge gained is expected to improve knowledge of anaesthetic action, guide future anaesthetic use in small animal imaging to improve the accuracy of image-derived research data, and help to clarify how anaesthetics confer neuroprotective effects in brain injury.Read moreRead less
Quantification of whole brain structural connectivity and fibre densities. The project is intended to develop and improve accuracy in tools used to measure brain connections. Its overall aim is to produce definitive evidence of the biological accuracy of quantitative measures of brain structural connectivity as derived from diffusion magnetic resonance imaging (MRI). Discovery in the quantitative field of MRI research is important to worldwide efforts to identify the human ‘connectome’. The proj ....Quantification of whole brain structural connectivity and fibre densities. The project is intended to develop and improve accuracy in tools used to measure brain connections. Its overall aim is to produce definitive evidence of the biological accuracy of quantitative measures of brain structural connectivity as derived from diffusion magnetic resonance imaging (MRI). Discovery in the quantitative field of MRI research is important to worldwide efforts to identify the human ‘connectome’. The project plans to bring together novel diffusion MRI post-processing methods and state-of-the-art 3-D glass-brain histology techniques using mice. Investment in MRI research that specifically addresses methods to accurately measure structural brain connectivity may ultimately contribute to improving non-invasive imaging methods.Read moreRead less
ARC Centre of Excellence for Integrative Brain Function. The Centre of Excellence for Integrative Brain Function will address one of the greatest scientific challenges of the 21st century to understand how the brain works. We will investigate complex functions such as attention, prediction and decision-making, which require the coordination of information processing by many areas of the brain. This will require a highly collaborative approach involving neurobiologists, cognitive scientists, eng ....ARC Centre of Excellence for Integrative Brain Function. The Centre of Excellence for Integrative Brain Function will address one of the greatest scientific challenges of the 21st century to understand how the brain works. We will investigate complex functions such as attention, prediction and decision-making, which require the coordination of information processing by many areas of the brain. This will require a highly collaborative approach involving neurobiologists, cognitive scientists, engineers and physicists, allowing us to translate our discoveries into novel technologies for the social and economic benefit of all Australians. We will also train a new generation of multidisciplinary researchers, and contribute our expertise to a range of public education and awareness programs.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130101222
Funder
Australian Research Council
Funding Amount
$371,392.00
Summary
The development of novel magnetic resonance imaging methods to investigate brain structure and function. Magnetic resonance imaging (MRI) is a non-invasive method that has revolutionised neuroscience. The goal of this project is to develop state-of-the-art MRI analysis methods that reveal new information about brain structure and function. These novel neuroimaging tools will be instrumental in furthering our understanding of how the brain works.
Advanced magnetic resonance imaging methods for the characterisation of brain structure and function. Magnetic resonance imaging (MRI) is a non-invasive method that has revolutionised the development of neuroscience and neurology. The goal of this project is to develop advanced MRI methods for the study of brain structure and function which will be applied to the investigation of epilepsy and stroke.
A mathematical model relating neural activity to cerebral blood flow. An ageing population is increasingly prone to neurodegenerative disease and the associated mental impairment can severely disrupt the lives of both the sufferers and the carers. Non-invasive brain imaging techniques are used to both diagnose and supervise treatment of such disease, but at present a lack of understanding of the underlying physiology leaves these methods open to criticism. The construction of a detailed quanti ....A mathematical model relating neural activity to cerebral blood flow. An ageing population is increasingly prone to neurodegenerative disease and the associated mental impairment can severely disrupt the lives of both the sufferers and the carers. Non-invasive brain imaging techniques are used to both diagnose and supervise treatment of such disease, but at present a lack of understanding of the underlying physiology leaves these methods open to criticism. The construction of a detailed quantitative model of the basic processes underlying this imaging will enable precise interpretation of such brain scans and increase their usefulness both as a research and as a therapeutic tool.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101275
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Contribution of basal ganglia networks to the fine-tuning of action. This project aims to identify the changes occurring in specific brain circuits when new behaviours are learned. Our ability to perform efficient goal-directed actions involves a learning process in which separate movements are organised into sequences of action. This project aims to determine how this is encoded in the brain by mapping basal ganglia networks that are directly engaged during different stages of learning. This pr ....Contribution of basal ganglia networks to the fine-tuning of action. This project aims to identify the changes occurring in specific brain circuits when new behaviours are learned. Our ability to perform efficient goal-directed actions involves a learning process in which separate movements are organised into sequences of action. This project aims to determine how this is encoded in the brain by mapping basal ganglia networks that are directly engaged during different stages of learning. This project also seeks to identify specific neural circuits that are important for the refinement of action. The knowledge developed in this project is expected to support the development of training programs to instruct individuals in specialised tasks and may be used in the design of biologically inspired robots.Read moreRead less
Spatiotemporal signatures of learning in brain reward systems. Learning to strengthen behaviours that secure resources and warrant survival is one of the primary functions of the brain. This Project seeks to establish the rules that govern the integration of learning in brain reward systems by studying how neuronal circuits change their molecular signatures as animals assimilate new knowledge. These studies will combine novel experimental designs to investigate learning with multidisciplinary me ....Spatiotemporal signatures of learning in brain reward systems. Learning to strengthen behaviours that secure resources and warrant survival is one of the primary functions of the brain. This Project seeks to establish the rules that govern the integration of learning in brain reward systems by studying how neuronal circuits change their molecular signatures as animals assimilate new knowledge. These studies will combine novel experimental designs to investigate learning with multidisciplinary methods for mapping, recording and functionalising teaching signals in behaving mice. The outcomes will create a significant shift in our understanding of the neural bases that underlie reward learning, and will critically expand the field by providing a new model of learning integration in brain systems.Read moreRead less
Mechanisms of memory integration in brain systems. Learning from our interactions with the environment is one of the brain’s most important functions, yet how and where this process takes place at the neural network level has proven difficult to establish. This Project seeks to investigate how major neuromodulatory signals in the brain coordinate the encoding of reward-based learning in large ensembles of neurons. These studies will combine novel behavioural paradigms with the most recent neuros ....Mechanisms of memory integration in brain systems. Learning from our interactions with the environment is one of the brain’s most important functions, yet how and where this process takes place at the neural network level has proven difficult to establish. This Project seeks to investigate how major neuromodulatory signals in the brain coordinate the encoding of reward-based learning in large ensembles of neurons. These studies will combine novel behavioural paradigms with the most recent neuroscience techniques for functional mapping and manipulation of specific neural circuits in behaving mice. The outcomes of this research will lead to a significant shift in our understanding of the mechanisms underpinning the integration of learning in brain systems and its implications for behaviour.Read moreRead less
Role of shifting thalamostriatal networks in action refinement. This project aims to determine the changes occurring in specific brain circuits when automatic behaviours are established. Ability to acquire new skills depends on the dynamic reorganisation of particular neural networks across brain territories throughout training. This project seeks to investigate how the thalamus-to-striatum pathway, a neural circuit that is central to motor control, progressively adjusts its activity as animals ....Role of shifting thalamostriatal networks in action refinement. This project aims to determine the changes occurring in specific brain circuits when automatic behaviours are established. Ability to acquire new skills depends on the dynamic reorganisation of particular neural networks across brain territories throughout training. This project seeks to investigate how the thalamus-to-striatum pathway, a neural circuit that is central to motor control, progressively adjusts its activity as animals automatise their actions. The project will combine behavioural designs with the latest neuroscience techniques for tracing, functional mapping and manipulation of specific neural circuits in behaving mice. The outcomes of this project will lead to a better understanding of the mechanisms underpinning the refinement of action at the systems level, which is critical for performance and professional dexterity.Read moreRead less