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Discovery Early Career Researcher Award - Grant ID: DE230100401
Funder
Australian Research Council
Funding Amount
$393,903.00
Summary
Deconstructing the brain circuits of reward-seeking. This project aims to deconstruct the brain circuits that shape reward-seeking behaviour in different environments. The anticipated significance of this project is to provide mechanistic insights into why we choose to seek rewards in safe, but not dangerous environments. Expected outcomes include answering fundamental questions about how the environment shapes our behaviour by identifying projection cell subtypes important for reward-seeking, c ....Deconstructing the brain circuits of reward-seeking. This project aims to deconstruct the brain circuits that shape reward-seeking behaviour in different environments. The anticipated significance of this project is to provide mechanistic insights into why we choose to seek rewards in safe, but not dangerous environments. Expected outcomes include answering fundamental questions about how the environment shapes our behaviour by identifying projection cell subtypes important for reward-seeking, characterising their neuronal activity and precisely defining their molecular phenotype. The benefits of this project are expected to provide a new knowledge base for understanding decision-making in a constantly changing world.Read moreRead less
Neural circuit control of effort under stress . This Project aims to investigate how the ‘decision’ to persist in exerting effort to obtain a reward is encoded in the the brain and affected by stress. This work will generate new knowledge on the neural mechanisms through which stress modifies neural activity to control decision making processes underpinning adaptive behaviours essential for survival. The expected outcomes of this work include enhanced capacity at the interface of behavioural a ....Neural circuit control of effort under stress . This Project aims to investigate how the ‘decision’ to persist in exerting effort to obtain a reward is encoded in the the brain and affected by stress. This work will generate new knowledge on the neural mechanisms through which stress modifies neural activity to control decision making processes underpinning adaptive behaviours essential for survival. The expected outcomes of this work include enhanced capacity at the interface of behavioural and computational neuroscience, that will in turn provide significant benefits through greater insight into brain functions essential for survival, with long ranging implications for performance optimisation and brain-inspired computing. Read moreRead less
How does embryonic physiology shape the divergence of brain development? . Unlike placental mammals (humans, mice, dogs etc) marsupials give birth to very immature young that finalise development in the pouch. Despite this remarkable distinction in the major mammalian lineages, very little is known about how differing reproductive environments impact development and evolution. This project aims to explore how developing inside or outside a uterus impacts brain development in placental vs marsupi ....How does embryonic physiology shape the divergence of brain development? . Unlike placental mammals (humans, mice, dogs etc) marsupials give birth to very immature young that finalise development in the pouch. Despite this remarkable distinction in the major mammalian lineages, very little is known about how differing reproductive environments impact development and evolution. This project aims to explore how developing inside or outside a uterus impacts brain development in placental vs marsupial mammals. Expected outcomes include expanding theories of how different body systems are connected in development and evolution, understanding what aspects of marsupial development might be especially sensitive to variations in environment brought about by climate change and enhancing Australia’s research capabilities.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
Midbrain hunger signalling modifies decision making under conflict. Decision-making is one of the most important and fundamental biological processes executed by the mammalian brain. Environmental threats and physiological pressures, such as hunger, can influence decision-making processes skewing the risk/reward ratio, yet how the brain integrates these conflicting goals to determine action selection is unknown. This project aims to investigate brain chemistry and circuitry controlling decision ....Midbrain hunger signalling modifies decision making under conflict. Decision-making is one of the most important and fundamental biological processes executed by the mammalian brain. Environmental threats and physiological pressures, such as hunger, can influence decision-making processes skewing the risk/reward ratio, yet how the brain integrates these conflicting goals to determine action selection is unknown. This project aims to investigate brain chemistry and circuitry controlling decision making under conflict using a multidisciplinary approach combining behaviour, pharmacogenetics, and sophisticated molecular and functional profiling. The expected outcomes will advance theories regarding the neural organisation and computation of decision making under conflict.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240101035
Funder
Australian Research Council
Funding Amount
$450,760.00
Summary
Charting the brain's wiring over the human lifespan. This project aims to produce a large-scale model of brain wiring over the human lifespan by utilising normative modelling approaches on state-of-the-art diffusion magnetic resonance imaging (diffusion MRI) data. This project expects to generate new understanding of how the brain's connections change with age in healthy individuals. Expected outcomes of this project include a reference chart for healthy brain wiring, and major advances in diffu ....Charting the brain's wiring over the human lifespan. This project aims to produce a large-scale model of brain wiring over the human lifespan by utilising normative modelling approaches on state-of-the-art diffusion magnetic resonance imaging (diffusion MRI) data. This project expects to generate new understanding of how the brain's connections change with age in healthy individuals. Expected outcomes of this project include a reference chart for healthy brain wiring, and major advances in diffusion MRI data harmonisation approaches. This should provide significant benefits for the translation of advanced diffusion MRI methods, as normative charts for brain wiring will be made broadly available. This could have broad implications for interpreting individual diffusion MRI scans in future.Read moreRead less
Decoding the brain network of memory formation. This project aims to uncover how the brain network supports the formation of long-lasting memory using cutting-edge imaging, intervention and computational modelling. The project is anticipated to generate new knowledge of the neural activity and circuitry that facilitate memory formation, and targets for modulating network activity and behaviour. This will have significant benefits for neuroscience, engineering and imaging, as well as future appli ....Decoding the brain network of memory formation. This project aims to uncover how the brain network supports the formation of long-lasting memory using cutting-edge imaging, intervention and computational modelling. The project is anticipated to generate new knowledge of the neural activity and circuitry that facilitate memory formation, and targets for modulating network activity and behaviour. This will have significant benefits for neuroscience, engineering and imaging, as well as future applications in humans with technology for detecting, predicting and modulating cognitive performance.Read moreRead less
Phenotyping doublecortin+ cells to unravel human adult neurogenesis. This project investigates one of the brain’s most remarkable phenomena: adult neurogenesis, the birth of new brain cells in a specialised brain area (the hippocampus) occurring well into adulthood. This process contributes to many species’ capacity to learn, remember and regenerate. However whether this process occurs in humans is heavily debated. Using new neuroscience tools, this project will produce new insights into human a ....Phenotyping doublecortin+ cells to unravel human adult neurogenesis. This project investigates one of the brain’s most remarkable phenomena: adult neurogenesis, the birth of new brain cells in a specialised brain area (the hippocampus) occurring well into adulthood. This process contributes to many species’ capacity to learn, remember and regenerate. However whether this process occurs in humans is heavily debated. Using new neuroscience tools, this project will produce new insights into human adult neurogenesis by deeply examining hippocampal cells that express the newborn cell marker, doublecortin. This will enable clarification of the existence and extent of adult neurogenesis in humans, and provide the foundation to leverage this process for improving learning, memory and brain regeneration in people.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
Unravelling the brain circuits linking emotions and heart rate variability. We are all familiar with the rapid breathing and heart pounding that occurs when we are frightened. Is the feeling of panic because we sense our heart pounding, or does our heart pound because we panic? This age-old question has resisted attempts to understand its neurobiological basis. This project aims to address this lack of knowledge using novel cutting-edge neuroscience methods that enable mapping of connected brain ....Unravelling the brain circuits linking emotions and heart rate variability. We are all familiar with the rapid breathing and heart pounding that occurs when we are frightened. Is the feeling of panic because we sense our heart pounding, or does our heart pound because we panic? This age-old question has resisted attempts to understand its neurobiological basis. This project aims to address this lack of knowledge using novel cutting-edge neuroscience methods that enable mapping of connected brain pathways and the ability to change the activity of specific brain cells with millisecond time resolution. The project will identify, and functionally characterise, the link between the heart and emotions, to gain new insights into the interaction between the autonomic nervous system and disordered emotional regulation.Read moreRead less