Functional imaging of colour pathways in the living eye. In order to repair or regenerate a diseased eye, we require knowledge of the normal pattern or nerve cell connections, and knowing how biology solves the problem of colour vision can be used to improve the design of artificial vision systems. The adaptive optics machine we will build in this project can be used to image nerve cells, fine blood vessels, and nerve fibre bundles in the normal and diseased eye. This will improve Australia's re ....Functional imaging of colour pathways in the living eye. In order to repair or regenerate a diseased eye, we require knowledge of the normal pattern or nerve cell connections, and knowing how biology solves the problem of colour vision can be used to improve the design of artificial vision systems. The adaptive optics machine we will build in this project can be used to image nerve cells, fine blood vessels, and nerve fibre bundles in the normal and diseased eye. This will improve Australia's research and development capacity in this new area of medical diagnostics. Our machine will be made available to other Australian laboratories and will improve the national capacity for making further scientific discoveries about how the visual system works.Read moreRead less
Listen and learn - statistical learning and the adapting auditory brain. This project aims to explore the link between rapid neural adaptation - a form of learning referred to as statistical learning - and human listening performance in noisy environments. The project aims to generate a new understanding of mechanisms that contribute to listeners' abilities to understand speech in noise, and to complex communication disorders such as dyslexia. Expected outcomes will include increased capacity to ....Listen and learn - statistical learning and the adapting auditory brain. This project aims to explore the link between rapid neural adaptation - a form of learning referred to as statistical learning - and human listening performance in noisy environments. The project aims to generate a new understanding of mechanisms that contribute to listeners' abilities to understand speech in noise, and to complex communication disorders such as dyslexia. Expected outcomes will include increased capacity to investigate a broad range of cognitive and communication functions. Benefits will include potential technologies and algorithms to assist listening (in devices such as hearing aids), language development and reading.Read moreRead less
Relationship of retinal directionality to human retinal anatomy variations. This project aims to improve measurement of retinal directionality, which is the reduction in brightness when a light beam’s entry into the human eye is shifted from the centre to the edge of the pupil. This influences retinal image quality and can be used to measure changes in shape of the peripheral eye. This project will apply advanced technologies in holography, and heads-up displays to explore how retinal directiona ....Relationship of retinal directionality to human retinal anatomy variations. This project aims to improve measurement of retinal directionality, which is the reduction in brightness when a light beam’s entry into the human eye is shifted from the centre to the edge of the pupil. This influences retinal image quality and can be used to measure changes in shape of the peripheral eye. This project will apply advanced technologies in holography, and heads-up displays to explore how retinal directionality changes during accommodation (focusing). The expected outcome is improved understanding of retinal stretching changes during focusing. The benefit is that the project will lead to advancements in retinal imaging.Read moreRead less
Removing the blinkers: a wider study of the human eye. Peripheral aberrations, wide-field retinal imaging and optical parameters. This project will study peripheral (side vision) optics of the human eye and its role in the limits of visual performance. This will improve ocular measurements and contribute towards improved diagnosis and treatment of ocular diseases and short-sightedness.
Advanced methods for intraocular imaging. The ability to image the retina of the human eye at high resolution is fundamental to improving understanding of ocular physiology, ocular optics and disease diagnosis. This project applies the relatively new application of active optics to vision science. This project will investigate the advantages of using new beam shaping techniques for characterising the optics of the eye, improving retinal imagery and improving fixation stability. This project will ....Advanced methods for intraocular imaging. The ability to image the retina of the human eye at high resolution is fundamental to improving understanding of ocular physiology, ocular optics and disease diagnosis. This project applies the relatively new application of active optics to vision science. This project will investigate the advantages of using new beam shaping techniques for characterising the optics of the eye, improving retinal imagery and improving fixation stability. This project will achieve three-dimensional holography of human eyes and develop holography plates for correcting the aberrations of eyes. Expected outcomes are not-before experienced resolution images of the retina and better understanding of the optical characteristics of the refractive surfaces and media in the eye.Read moreRead less
INVESTIGATION OF A BRAIN RHYTHM. Elucidation of brain function remains a frontier for human discovery. To date, research has largely focussed on brain connectivity with major advances in knowledge of input/output function of brain regions. Yet, there remains little understanding of higher order processes that underlie functions such as mood states and consciousness. Investigation of brain rhythms represent a step to unravelling such processes, as rhythms both act as autonomous clocks and generat ....INVESTIGATION OF A BRAIN RHYTHM. Elucidation of brain function remains a frontier for human discovery. To date, research has largely focussed on brain connectivity with major advances in knowledge of input/output function of brain regions. Yet, there remains little understanding of higher order processes that underlie functions such as mood states and consciousness. Investigation of brain rhythms represent a step to unravelling such processes, as rhythms both act as autonomous clocks and generate synchronised neuronal activity. This project aims to investigate mechanisms underlying a specific class of brain rhythm implicated in control of mood states. Positive outcomes from this basic research may lead to better drug therapies for controlling specific mental disorders.Read moreRead less
Physiology of tau protein: a novel role in scaffolding and intracellular distribution. Understanding brain function remains a challenge. This project will study the normal role of the Alzheimer's disease-related protein tau in brain function during ageing. This will significantly enhance current understanding of brain function.
Understanding lens aging: the molecular basis of presbyopia. Ageing has major consequences in the deterioration of vision, notably, the inability to focus on near objects. The understanding gained through this study of age-related lens changes may allow us to prescribe drugs or diets that alter lens properties and thus delay the need for glasses. This would have great benefits not just in decreased inconvenience of users, but also in cost to the middle-aged and elderly. In addition, data will b ....Understanding lens aging: the molecular basis of presbyopia. Ageing has major consequences in the deterioration of vision, notably, the inability to focus on near objects. The understanding gained through this study of age-related lens changes may allow us to prescribe drugs or diets that alter lens properties and thus delay the need for glasses. This would have great benefits not just in decreased inconvenience of users, but also in cost to the middle-aged and elderly. In addition, data will be used to underpin the development of a flexible intraocular lens (IOL). Hard IOLs are routinely inserted into human eyes following cataract surgery. In the future, flexible IOLs based on the properties of young lenses will be used, rather than reading glasses. This new industry could be based in Australia.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
Do sex steroids regulate tear lipid production in human meibomian glands? This project aims to determine whether production of tear film lipids by meibomian gland cells is regulated by sex steroids. The tear film is essential to eyesight. It protects and nourishes the eye surface to maintain transparency to enable light to reach the retina. To guarantee these functions, exquisite control of tear film composition is required, including the outer lipid layer. Sex hormones, including oestrogen, may ....Do sex steroids regulate tear lipid production in human meibomian glands? This project aims to determine whether production of tear film lipids by meibomian gland cells is regulated by sex steroids. The tear film is essential to eyesight. It protects and nourishes the eye surface to maintain transparency to enable light to reach the retina. To guarantee these functions, exquisite control of tear film composition is required, including the outer lipid layer. Sex hormones, including oestrogen, may control production of the lipid layer by meibomian glands in the eyelid, but this has not been confirmed in humans. This project aims to show whether meibomian glands produce sex hormones, which then control production of tear lipids. This new knowledge will improve our understanding of how the tear film maintains clear vision.Read moreRead less