Behaviour of large networks of neurons in a functioning organ: a realistic computer-based model of the enteric nervous system. The organisation of the gut nervous system is well understood, but how nerve cells cooperate to control gut movements and secretions are matters of conjecture. We will test these conjectures by simulating the behaviour of the gut nervous system using an anatomically and physiologically realistic computer model to predict the way the gut responds to specific stimuli and t ....Behaviour of large networks of neurons in a functioning organ: a realistic computer-based model of the enteric nervous system. The organisation of the gut nervous system is well understood, but how nerve cells cooperate to control gut movements and secretions are matters of conjecture. We will test these conjectures by simulating the behaviour of the gut nervous system using an anatomically and physiologically realistic computer model to predict the way the gut responds to specific stimuli and test these predictions using novel methods for recording gut movements and nervous activity. This will provide the first complete description of how a mammalian nervous system generates complex behaviours and will provide substantial pointers to how other nervous systems achieve similar tasks.Read moreRead less
Emergence of robust, stable structures via computation within natural networks. An ever-increasing challenge for modern society is the sheer complexity of vast infrastructures. Unexpected, and sometimes catastrophic, behaviour often emerges from interactions between elements of large systems. As a result, highly complex systems such as the Internet, international finance markets, and power grids are highly susceptible to costly problems such as cascading failures, inefficiency, and critical sens ....Emergence of robust, stable structures via computation within natural networks. An ever-increasing challenge for modern society is the sheer complexity of vast infrastructures. Unexpected, and sometimes catastrophic, behaviour often emerges from interactions between elements of large systems. As a result, highly complex systems such as the Internet, international finance markets, and power grids are highly susceptible to costly problems such as cascading failures, inefficiency, and critical sensitivity. High-tech industries, such as biotechnology and information networking, also face problems in coordinating swarms of interacting agents. This project will contribute to solving such problems by identifying and adapting solutions from nature.Read moreRead less
Dual phase evolution in networks. A grand challenge for modern society is the sheer complexity of vast networks arising from organizations and infrastructures. Unexpected, sometimes catastrophic, behaviour often emerges from interactions within such systems. As a result, the Internet, financial markets, power grids and other vital infrastructures are susceptible to costly problems such as cascading failures, inefficiency, and unpredictability. High-tech industries, such as biotechnology and info ....Dual phase evolution in networks. A grand challenge for modern society is the sheer complexity of vast networks arising from organizations and infrastructures. Unexpected, sometimes catastrophic, behaviour often emerges from interactions within such systems. As a result, the Internet, financial markets, power grids and other vital infrastructures are susceptible to costly problems such as cascading failures, inefficiency, and unpredictability. High-tech industries, such as biotechnology and information networking, face problems in coordinating networks of interacting agents. This project will expand the horizon of complex systems by deriving the design principles underpinning stable and resilient network structures and validate these principles on real world networks.Read moreRead less
Target detection in visual clutter. The interdisciplinary nature of the project will offer a stimulating environment for training a postdoctoral worker in the hot topic of computational neuroscience. While computationally expensive solutions to moving target detection in clutter have been implemented using conventional engineering, this project will offer insight into the efficiency of the biological brain (with benefit of millions of years of evolution towards compact, economical and optimal so ....Target detection in visual clutter. The interdisciplinary nature of the project will offer a stimulating environment for training a postdoctoral worker in the hot topic of computational neuroscience. While computationally expensive solutions to moving target detection in clutter have been implemented using conventional engineering, this project will offer insight into the efficiency of the biological brain (with benefit of millions of years of evolution towards compact, economical and optimal solutions). The results will assist development of efficient artificial intelligence. It will also assist our ongoing collaborations with defence partners to develop and apply algorithms in artificial vision systems. Read moreRead less
3D analysis of facial features for proof of identity across Australia's ethnically diverse population. The forensic sciences concerned with establishing Human identity play a vital role in safeguarding Australia. Certainty in Human identification is required by police and intelligence agencies because knowing the identity of perpetrators (or potential perpetrators) of crime allows effective preventative intervention. This is particularly important during surveillance operations and in the contex ....3D analysis of facial features for proof of identity across Australia's ethnically diverse population. The forensic sciences concerned with establishing Human identity play a vital role in safeguarding Australia. Certainty in Human identification is required by police and intelligence agencies because knowing the identity of perpetrators (or potential perpetrators) of crime allows effective preventative intervention. This is particularly important during surveillance operations and in the context of border protection. When crime has already been committed, the identification of victims and perpetrators is important for the exoneration of the innocent and successful prosecution of the guilty. The full utilisation of 3D morphometric analysis of faces will provide criteria robust enough for legal proof of identity. Read moreRead less
Assembly of neural circuits during development. This program aims to understand how nerve cells wire up accurately during development. Specifically, the program will determine how neuronal connections are established in the retina to produce a sensory structure essential for vision. The program will also generate innovative tools for watching in live animals, the making and breaking of connections during normal and abnormal development. Discoveries will not only significantly increase our knowle ....Assembly of neural circuits during development. This program aims to understand how nerve cells wire up accurately during development. Specifically, the program will determine how neuronal connections are established in the retina to produce a sensory structure essential for vision. The program will also generate innovative tools for watching in live animals, the making and breaking of connections during normal and abnormal development. Discoveries will not only significantly increase our knowledge base of how the nervous system develops or degenerates, but the results will provide crucial information for future studies based on genetic approaches, drug therapies and bioengineering technology to repair the injured nervous system.Read moreRead less
Topological Approaches for Three Dimensional Graph Drawing. Human analysis of huge quantities of relational data in biotechnology, web engineering, social networks, and computer networks requires visualization. In recent years, three-dimensional visualisation has promised to give new insights into such abstract data. However the past ten years of visualization research has had very little impact on the industry; visualization software providers have not adopted visualization methods developed b ....Topological Approaches for Three Dimensional Graph Drawing. Human analysis of huge quantities of relational data in biotechnology, web engineering, social networks, and computer networks requires visualization. In recent years, three-dimensional visualisation has promised to give new insights into such abstract data. However the past ten years of visualization research has had very little impact on the industry; visualization software providers have not adopted visualization methods developed by academics. We hypothesise that current 3D relational visualization methods fail because they do not pay attention to the human perception of topology. In this project we will leverage mathematical topology to construct new methods for the 3D visualization of relational data.
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New Methods for Interactive Visualization of Large Microarray Data Sets. This project will investigate methods for visualising graphs produced by AI-based analysis of real-world biological data. These new visualisation methods will assist biologists to develop new DNA Microarray experiments, the source of raw data for visualisation. Data from new enhanced experiments, plus background knowledge from integrated public databases will produce richer data for visualisation, thus creating a positive f ....New Methods for Interactive Visualization of Large Microarray Data Sets. This project will investigate methods for visualising graphs produced by AI-based analysis of real-world biological data. These new visualisation methods will assist biologists to develop new DNA Microarray experiments, the source of raw data for visualisation. Data from new enhanced experiments, plus background knowledge from integrated public databases will produce richer data for visualisation, thus creating a positive feedback loop in the course of research into both topics.Read moreRead less
Specialized glial cells within the hippocampus of the brain regulate important morphological events in embryonic development. Memories of past experiences, and our ability to learn new information, is processed in a region of the brain called the hippocampus. In order for this to occur, the cells that make up the hippocampus must form correctly during embryonic development. This proposal investigates the cellular and molecular mechanisms regulating hippocampal formation. The national benefit of ....Specialized glial cells within the hippocampus of the brain regulate important morphological events in embryonic development. Memories of past experiences, and our ability to learn new information, is processed in a region of the brain called the hippocampus. In order for this to occur, the cells that make up the hippocampus must form correctly during embryonic development. This proposal investigates the cellular and molecular mechanisms regulating hippocampal formation. The national benefit of this work is to provide basic knowledge about the processes that underlie correct brain formation and function, and to understand what processes are disrupted when the brain fails to function correctly. Such disruptions lead to mental retardation and learning difficulties, and in the aged, an inability to form and store new memories, as occurs in dementia.Read moreRead less
Investigating the mechanisms of flavonoid actions on glycine receptors. The research to be conducted in this project will use state-of-the-art electrophysiological and molecular biological approaches to carefully characterise the actions of certain flavonoid compounds on the glycine-receptor channel. These compounds have recently been reported to act as modulators of ligand-gated ion channels, proteins integral to brain function and disease. However, no-one has studied in any detail the mechan ....Investigating the mechanisms of flavonoid actions on glycine receptors. The research to be conducted in this project will use state-of-the-art electrophysiological and molecular biological approaches to carefully characterise the actions of certain flavonoid compounds on the glycine-receptor channel. These compounds have recently been reported to act as modulators of ligand-gated ion channels, proteins integral to brain function and disease. However, no-one has studied in any detail the mechanisms by which these compounds act. By discovering their site and mechanisms of action we will further our understanding of these important proteins and their modulation, maintain Australia's significant expertise in this field and provide leads for future development of drugs with potential therapeutic value.Read moreRead less