Investigating the role of Zona Incerta RXFP3+ cells in learning and memory. Learning and memory are fundamental to human and animal behaviour. We identified a specific population of cells in the zona incerta of the brain, where activation inhibits expression of memory, and facilitates the acquisition of new learning. Aside from our observations, nothing is currently known about the anatomy and function of these cells. This project aims to map how they connect to the rest of the brain, to observe ....Investigating the role of Zona Incerta RXFP3+ cells in learning and memory. Learning and memory are fundamental to human and animal behaviour. We identified a specific population of cells in the zona incerta of the brain, where activation inhibits expression of memory, and facilitates the acquisition of new learning. Aside from our observations, nothing is currently known about the anatomy and function of these cells. This project aims to map how they connect to the rest of the brain, to observe how these connections are recruited during learning and memory, and then to test their function experimentally. The outcomes will extend the known neural circuitry that controls learning by defining how and where these unexplored pathways fit within it; thus advancing knowledge regarding neural regulation of behaviour.
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Flexible models and methods for cognitive model-based decision-making. This project aims to apply mathematical decision models to important questions of basic and applied science. Advances will be pursued through an interdisciplinary effort, combining recent developments in econometric and statistical methods, cognitive science and computing. The expected outcomes will bring a proven and powerful approach to a new range of questions investigating psychological aspects of choices about health c ....Flexible models and methods for cognitive model-based decision-making. This project aims to apply mathematical decision models to important questions of basic and applied science. Advances will be pursued through an interdisciplinary effort, combining recent developments in econometric and statistical methods, cognitive science and computing. The expected outcomes will bring a proven and powerful approach to a new range of questions investigating psychological aspects of choices about health care and consumer purchases. This project will provide significant benefits to the wider scientific community to understand basic cognition, and human behaviour in many domains.Read moreRead less
PET imaging of learning-related plasticity in awake behaving rats. The objective of the project is to combine an investigation of basic learning paradigms with functional Positron emission tomography (PET) imaging in rats in order to answer critical questions about the neurobiological basis of learning and decision-making in the brain. MicroPET technology provides PET images without the confounds induced by anaesthesia. Using this technology, the project intends to observe whole-brain changes in ....PET imaging of learning-related plasticity in awake behaving rats. The objective of the project is to combine an investigation of basic learning paradigms with functional Positron emission tomography (PET) imaging in rats in order to answer critical questions about the neurobiological basis of learning and decision-making in the brain. MicroPET technology provides PET images without the confounds induced by anaesthesia. Using this technology, the project intends to observe whole-brain changes in dopamine neurotransmission in awake, behaving rats while they learn to predict motivationally relevant outcomes based on environmental cues and on their own actions (ie during Pavlovian and instrumental conditioning, respectively). The outcomes of this research may improve our understanding of the neural changes responsible for debilitating disorders of the brain and mind.Read moreRead less
State-trace analysis: theory and application. A fundamental question for the science of psychology is: how can we identify the functional components of the human mind from observed behaviour and bodily states? This project explores this question through a new methodology called state-trace analysis and apply it to a basic cognitive ability - the capacity to learn to classify different objects.
Exploring the nature of lexical representation. In order to comprehend and produce the words that we know, whether in speech or in writing, we must possess mental representations of each of those words (i.e., "lexical" representations). The aim of the proposed research is to elaborate on the nature of these representations in an attempt to understand more fully the cognitive mechanisms involved in proficient language use. The central idea to be explored is that underlying all lexical functioning ....Exploring the nature of lexical representation. In order to comprehend and produce the words that we know, whether in speech or in writing, we must possess mental representations of each of those words (i.e., "lexical" representations). The aim of the proposed research is to elaborate on the nature of these representations in an attempt to understand more fully the cognitive mechanisms involved in proficient language use. The central idea to be explored is that underlying all lexical functioning is an abstract phonological representation that is influenced by orthography. Furthermore, the possibility will be examined that poorer readers possess less abstract representations than do better readers.Read moreRead less
Flash Point in the Third Sector: A longitudinal follow up study of the clergy care 'battle' within The Salvation Army. Increasing community demands for social support from clergy, along with organisational pressures is thought to underlie the repeated observation that clergy work is highly stressful. The Salvation Army specifically is alarmed by current low retention and recruitment rates.
This innovative longitudinal study of clergy well-being and productivity uses a participatory action re ....Flash Point in the Third Sector: A longitudinal follow up study of the clergy care 'battle' within The Salvation Army. Increasing community demands for social support from clergy, along with organisational pressures is thought to underlie the repeated observation that clergy work is highly stressful. The Salvation Army specifically is alarmed by current low retention and recruitment rates.
This innovative longitudinal study of clergy well-being and productivity uses a participatory action research design to follow-up army officers over a one year period, during which time one-third will be required to relocate to various Australian states in accord with their vocation. Findings will be important for increasing awareness and implications for clergy care in both The Salvation Army and clergy universally.
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Investigating evidence of control system dynamics in visuomotor skill acquisition using multimodal functional magnetic resonance imaging. This project brings together mathematical and engineering methods with cognitive neuroscience in a novel way to better understand the fundamental processes associated with brain imaging, and the acquisition of motor skills. An improved understanding of the function of regions within the motor network will have a direct benefit for the rehabilitation of patient ....Investigating evidence of control system dynamics in visuomotor skill acquisition using multimodal functional magnetic resonance imaging. This project brings together mathematical and engineering methods with cognitive neuroscience in a novel way to better understand the fundamental processes associated with brain imaging, and the acquisition of motor skills. An improved understanding of the function of regions within the motor network will have a direct benefit for the rehabilitation of patients suffering motor deficits from developmental causes, following traumatic brain injuries, and after stroke and other neurodegenerative diseases. The outcomes of the research will also contribute to our understanding of the complexity of brain networks involved in motor skill acquisition.Read moreRead less
Integrating holistic processing and face-space approaches to the perception of facial identity. Recognising faces is a socially crucial task, and humans are remarkably good at it. Scientists investigating the 'software' our brains use to recognise faces have referred to two different theories -- one when explaining why we distinguish faces better than objects, and the other in explaining why we distinguish some people's faces more easily than others. The project aims to integrate these two theor ....Integrating holistic processing and face-space approaches to the perception of facial identity. Recognising faces is a socially crucial task, and humans are remarkably good at it. Scientists investigating the 'software' our brains use to recognise faces have referred to two different theories -- one when explaining why we distinguish faces better than objects, and the other in explaining why we distinguish some people's faces more easily than others. The project aims to integrate these two theories. This has two potential long-term benefits: it will give a stronger basis for understanding what goes wrong in people where face recognition does not develop normally; and, the improved knowledge from a biological system may also lead to improved computer face recognition algorithms (eg. for airport security).Read moreRead less
Modelling the acoustical scattering properties of the human auditory system. The audio and entertainment industry is continually striving towards the development of immersive consumer technologies. Australian companies and researchers within this market sector utilise these audio technologies for many innovative applications, including virtual reality, communication, navigation, monitoring, and auditory products for the hearing impaired. These developments rely heavily on a fundamental understan ....Modelling the acoustical scattering properties of the human auditory system. The audio and entertainment industry is continually striving towards the development of immersive consumer technologies. Australian companies and researchers within this market sector utilise these audio technologies for many innovative applications, including virtual reality, communication, navigation, monitoring, and auditory products for the hearing impaired. These developments rely heavily on a fundamental understanding of our natural sense of spatial hearing. This project will extend the current understanding of the acoustic scattering mechanisms that govern the external auditory system, and provide critical enabling knowledge that will enhance the development of innovative audio technologies.Read moreRead less
Pattern recognition in animals and machines: using machine learning to reveal cues central to the identification of individuals. The power to recognise individuals of a species requires significant image and pattern discrimination abilities. Yet, individual recognition has been found in a huge range of species, from humans to invertebrates demonstrating its importance for social interactions. The project will investigate this ability in lower vertebrates (fish, with no visual cortex), so as to u ....Pattern recognition in animals and machines: using machine learning to reveal cues central to the identification of individuals. The power to recognise individuals of a species requires significant image and pattern discrimination abilities. Yet, individual recognition has been found in a huge range of species, from humans to invertebrates demonstrating its importance for social interactions. The project will investigate this ability in lower vertebrates (fish, with no visual cortex), so as to understand the underlying mechanisms of pattern discrimination. The project will also test how robust this ability is during changes in water quality (elevated carbon dioxide levels and increased turbidity). The outcomes will further our knowledge base in lower vertebrate vision and evolution, and also have implications for human vision, image analysis, and artificial vision.Read moreRead less