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
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
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: 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
Discovery Early Career Researcher Award - Grant ID: DE230101079
Funder
Australian Research Council
Funding Amount
$453,528.00
Summary
New insights into how the brain interprets visceral and somatic sensations. Sensory nerve fibres monitor normal and abnormal stimuli in our body tissues, sending this information to the brain. I study the sensory pathways of the respiratory system which protect the lungs from harmful stimuli, such as inhaled pollutants or smoke. I discovered that respiratory sensory pathways interact with sensory circuits in the brain arising from other body tissues. The goal of this project is to investigate on ....New insights into how the brain interprets visceral and somatic sensations. Sensory nerve fibres monitor normal and abnormal stimuli in our body tissues, sending this information to the brain. I study the sensory pathways of the respiratory system which protect the lungs from harmful stimuli, such as inhaled pollutants or smoke. I discovered that respiratory sensory pathways interact with sensory circuits in the brain arising from other body tissues. The goal of this project is to investigate one example of this interaction; the convergence of visceral and somatic sensory pathways onto a brain circuit that regulates the intensity of the sensations that are experienced. This project addresses the fundamental question of how the brain processes two competing noxious sensations.Read moreRead less
Understanding multiday cycles underpinning human physiology. We recently discovered long-term rhythms modulating activities of our brains and hearts ranging in duration from 3-60 days. The cause of these longer, ‘multiday cycles’ remain unknown. This project aims to understand; causes of multiday cycles (measuring the nervous and autonomic nervous system), their effects (on cognition, sleep, and stress), and quantify the relationship between coupled cyclical systems. The research outcomes can pr ....Understanding multiday cycles underpinning human physiology. We recently discovered long-term rhythms modulating activities of our brains and hearts ranging in duration from 3-60 days. The cause of these longer, ‘multiday cycles’ remain unknown. This project aims to understand; causes of multiday cycles (measuring the nervous and autonomic nervous system), their effects (on cognition, sleep, and stress), and quantify the relationship between coupled cyclical systems. The research outcomes can provide fundamental new knowledge about cyclic dynamics governing human physiology, leading to improved rigour in life sciences research. Commercial outcomes include technology to optimise individual productivity, learning, health, and wellbeing based on physiological cycles, with diverse benefits to society.Read moreRead less
Novel mechanisms by which retinal microglia regulate vascular development. This project aims to investigate how immune cells called microglia refine the developing retinal vasculature. New knowledge utilizing state of art imaging techniques is likely to be examine a completely novel mechanism by which vascular development occurs. This information is critical for enhancing our understanding of the role of immune cells in the nervous system and will guide the development of new ways of examining t ....Novel mechanisms by which retinal microglia regulate vascular development. This project aims to investigate how immune cells called microglia refine the developing retinal vasculature. New knowledge utilizing state of art imaging techniques is likely to be examine a completely novel mechanism by which vascular development occurs. This information is critical for enhancing our understanding of the role of immune cells in the nervous system and will guide the development of new ways of examining these cells. Expected outcomes include a novel way for assessing microglia in the developing nervous system and new knowledge. In the longer term the information gained in this project may be helpful for understanding scenarios where blood vessels are abnormal, or for using microglia as a target to modify vascular function.Read moreRead less
The neural basis of memory. Although they define us, our knowledge about how, and where, memories are processed and stored within the brain is still in its infancy. This project aims to investigate the morphological and functional changes that occur in cortical neurons during memory formation. By recording from both mouse and human neurons, this study will bridge the gap in knowledge between the heavily-investigated rodent brain and the human brain and advance our knowledge on how remote memorie ....The neural basis of memory. Although they define us, our knowledge about how, and where, memories are processed and stored within the brain is still in its infancy. This project aims to investigate the morphological and functional changes that occur in cortical neurons during memory formation. By recording from both mouse and human neurons, this study will bridge the gap in knowledge between the heavily-investigated rodent brain and the human brain and advance our knowledge on how remote memories are formed in individual neurons within the frontal cortex of the brain. These findings will highlight potential neural mechanisms that might be awry in cases of memory loss and amnesia.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
Engineering a technology platform for organoids. Protein delivery technologies hold great potential to improve organoids (miniature organs used as in vitro models), allowing a deep understanding of development. However, current limitations must be overcome - particularly cost, precision, and efficacy. This project will engineer delivery materials to improve the efficacy of organoids, allowing control over the location and timing of protein delivery. Outcomes will include a technology platform o ....Engineering a technology platform for organoids. Protein delivery technologies hold great potential to improve organoids (miniature organs used as in vitro models), allowing a deep understanding of development. However, current limitations must be overcome - particularly cost, precision, and efficacy. This project will engineer delivery materials to improve the efficacy of organoids, allowing control over the location and timing of protein delivery. Outcomes will include a technology platform of immediate use in the agriculture sector and for animal model alternatives. The benefit will be widespread, ensuring the growth and sustainability of our health and agriculture sector. The project will increase public understanding of protein delivery technologies, aiding in technology adoption.Read moreRead less