Understanding the generation of hypothalamic sleep neurons. This Project aims to investigate the mechanisms controlling the formation of the sleep neurons in the hypothalamus. We all sleep, and normal sleep-wake cycles play a central role in our biology. The functional role of these sleep neurons in the mature brain are well established. However, how the neurons are generated during development is very poorly defined. This project aims to address this critical knowledge gap, and will greatly inc ....Understanding the generation of hypothalamic sleep neurons. This Project aims to investigate the mechanisms controlling the formation of the sleep neurons in the hypothalamus. We all sleep, and normal sleep-wake cycles play a central role in our biology. The functional role of these sleep neurons in the mature brain are well established. However, how the neurons are generated during development is very poorly defined. This project aims to address this critical knowledge gap, and will greatly increase our understanding of how the development of this critical aspect of organismal function is orchestrated during development. This project will also develop bioinformatics tools with broad utility within the biosciences field and enhance the capacity for interdisciplinary international collaborations.Read moreRead less
Hippocampal regulation of goal-directed decision-making. The hippocampus is a part of the brain that is central to learning and memory yet little is known about its role in decision-making. It is the aim of this application to provide the first detailed, causal evidence of hippocampal regulation of decision-making. This is significant because many mental health disorders and dementias that involve decision-making deficits are characterised by hippocampal dysfunction, but any direct link between ....Hippocampal regulation of goal-directed decision-making. The hippocampus is a part of the brain that is central to learning and memory yet little is known about its role in decision-making. It is the aim of this application to provide the first detailed, causal evidence of hippocampal regulation of decision-making. This is significant because many mental health disorders and dementias that involve decision-making deficits are characterised by hippocampal dysfunction, but any direct link between these factors is unknown. The outcomes of the current grant will provide the first evidence of that link, thus providing deeper understanding of the neurophysiological mechanisms of these disorders, which could eventuate in the creation of more beneficial treatments. 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
What drives the Anterior Expansion of the Central Nervous System? A striking and highly conserved feature of the central nervous system is that the brain is larger than the spinal cord. Despite the manifest implications this has for nervous system function, the underlying drivers are largely unknown. This project aims to investigate the mechanisms controlling anterior expansion of the central nervous system, and will generate new knowledge in the areas of nervous system development and evolution ....What drives the Anterior Expansion of the Central Nervous System? A striking and highly conserved feature of the central nervous system is that the brain is larger than the spinal cord. Despite the manifest implications this has for nervous system function, the underlying drivers are largely unknown. This project aims to investigate the mechanisms controlling anterior expansion of the central nervous system, and will generate new knowledge in the areas of nervous system development and evolution. This project aims to impact on our understanding of nervous system function, develop bioinformatics tools with broad utility within the biosciences field, strengthen Australia’s international standing in the developmental neuroscience, and enhance the capacity for interdisciplinary international collaborations.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100950
Funder
Australian Research Council
Funding Amount
$459,051.00
Summary
Identifying hypothalamic circuits that integrate stress and metabolism. This project aims to investigate how the brain integrates threat during hunger. Using cutting-edge technology to manipulate and record neural activity this project will elucidate the brain circuits that integrate threat and appetite to minimize stress exposure during foraging. This will expand our knowledge on how the brain perceives and responds to hunger and may provide relevant information for a large number of basic biol ....Identifying hypothalamic circuits that integrate stress and metabolism. This project aims to investigate how the brain integrates threat during hunger. Using cutting-edge technology to manipulate and record neural activity this project will elucidate the brain circuits that integrate threat and appetite to minimize stress exposure during foraging. This will expand our knowledge on how the brain perceives and responds to hunger and may provide relevant information for a large number of basic biological processes controlling the brain. Expected outcomes of this project will contribute to a better understanding of the circuitry controlling more complex decisions from food selection through to social interactions. This should provide significant benefits for Australia’s competitiveness within neuroscience research.Read moreRead less
Novel dopamine pathways underlying motivated behaviours. Rewards such as food, sex and social media are seeked on daily basis. Neurological and psychological basis of learning and memory of reward processing behaviour. This project maps real time neural activity during reward processing in two novel brain regions. It has the potential to revolutionize the understanding of the brain mechanisms in reward processing. The biological data obtained can be directly integrated into computational modelli ....Novel dopamine pathways underlying motivated behaviours. Rewards such as food, sex and social media are seeked on daily basis. Neurological and psychological basis of learning and memory of reward processing behaviour. This project maps real time neural activity during reward processing in two novel brain regions. It has the potential to revolutionize the understanding of the brain mechanisms in reward processing. The biological data obtained can be directly integrated into computational modelling approaches to benefit reward processing algorithms for learning behaviours in humans or artificial intelligence. This project will fuel the understanding of algorithms driving social media platforms and consumer consumption, hence driving economic and technological progress in Australia.Read moreRead less
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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Hunger flexibly modifies hypothalamic neural circuits responding to threat. Animal and human behaviour frequently involves a choice between actions or goals with conflicting positive and negative outcomes. However, the appropriate action or goal in conflicting situations often depends on physiological pressures like hunger, stress and mating opportunities. For example, the need for resources within an environment, such as food, drives approach behaviour, whereas threats to survival, such as pred ....Hunger flexibly modifies hypothalamic neural circuits responding to threat. Animal and human behaviour frequently involves a choice between actions or goals with conflicting positive and negative outcomes. However, the appropriate action or goal in conflicting situations often depends on physiological pressures like hunger, stress and mating opportunities. For example, the need for resources within an environment, such as food, drives approach behaviour, whereas threats to survival, such as predator cues, enhance avoidance behaviour. This project will uncover the neural circuitry and endocrine mechanisms through which hunger influences hypothalamic threat-detecting circuits that suppress food intake. These studies provide a new hypothalamic model to understand risk/reward decision in the brain.Read moreRead less
Does a teacher-led mindfulness intervention improve student outcomes? This project aims to determine if improving teacher knowledge and practice of mindfulness in the classroom, can lead to better child attention and school functioning outcomes during the early primary school years. Mindfulness is an approach that aims to improve attention, self-regulation, mental health, and cognitive functioning. Expected outcomes include new knowledge as to whether mindfulness can be integrated into classroom ....Does a teacher-led mindfulness intervention improve student outcomes? This project aims to determine if improving teacher knowledge and practice of mindfulness in the classroom, can lead to better child attention and school functioning outcomes during the early primary school years. Mindfulness is an approach that aims to improve attention, self-regulation, mental health, and cognitive functioning. Expected outcomes include new knowledge as to whether mindfulness can be integrated into classroom practice, how to best implement it, student benefits and cost-effectiveness. Findings will inform schools as to whether this approach can support students in making a positive transition to primary school that can place them on positive academic and well-being pathways and lead to benefits in their adulthood.Read moreRead less
Emotions and Employee Turnover: New Methods for Complex Dynamic Systems. This project aims to vastly improve the data-analytic capabilities of social and health researchers, while increasing knowledge about emotion dynamics and their link to employee turnover. By drawing on and advancing methods from ecology and applied physics, this project plans to investigate the role that individual emotions play in employee turnover with new quantitative methods for characterising and testing causality in c ....Emotions and Employee Turnover: New Methods for Complex Dynamic Systems. This project aims to vastly improve the data-analytic capabilities of social and health researchers, while increasing knowledge about emotion dynamics and their link to employee turnover. By drawing on and advancing methods from ecology and applied physics, this project plans to investigate the role that individual emotions play in employee turnover with new quantitative methods for characterising and testing causality in complex dynamic systems. The expected outcomes include an improved capacity for researchers, managers, and policy makers to understand complex organisational, economic, and health systems. This will provide immediate societal benefits by informing the development and deployment of targeted interventions in such systems.Read moreRead less