Brain lateralization: its function, evolution, development and change with ageing. Brain research is undoubtedly one of the key research fields today. This project involves highly innovative research at the highest international level, keeping Australia at the forefront of research on brain lateralization, a very important field of brain research in humans and animals (co-founded by the applicant). This project 1) investigates dynamic changes of the developing, mature and ageing brain for vital ....Brain lateralization: its function, evolution, development and change with ageing. Brain research is undoubtedly one of the key research fields today. This project involves highly innovative research at the highest international level, keeping Australia at the forefront of research on brain lateralization, a very important field of brain research in humans and animals (co-founded by the applicant). This project 1) investigates dynamic changes of the developing, mature and ageing brain for vital functions using animal models, thus contributing importantly to our understanding of normal functions of the human brain, including some forms of mental dysfunction and also ageing; 2) trains postgraduate students at the highest standards and 3) maintains important collaboration with colleagues in Europe. Read moreRead less
Are there advantages in having a lateralized brain? Specialisation of the left and right hemispheres of the brain to process different information and to control different responses is not, as once thought, unique to humans but common to all vertebrates. In fact, the same general pattern of lateralization occurs in amphibians, reptiles, birds and mammals. Until now, it has been important to document the presence and nature of lateralization in different species. Now it is important to discover t ....Are there advantages in having a lateralized brain? Specialisation of the left and right hemispheres of the brain to process different information and to control different responses is not, as once thought, unique to humans but common to all vertebrates. In fact, the same general pattern of lateralization occurs in amphibians, reptiles, birds and mammals. Until now, it has been important to document the presence and nature of lateralization in different species. Now it is important to discover the advantages (and disadvantages) of having a lateralized brain. This project will do so using two model species, the chick and the marmoset, and new techniques to measure behaviour.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0452971
Funder
Australian Research Council
Funding Amount
$102,900.00
Summary
Optical imaging of brain activity: Studies of the neural basis of sensory perception, plasticity and behaviour. Basic to the understanding of the brain is to know how the overall architecture of the nervous system relates to its function. We propose to study this by directly visualising the regions that are functionally active in the living brains of animals, down to resolution limits of less than 100 micrometres. Such "optical imaging" will be done by recording light reflected from the surfac ....Optical imaging of brain activity: Studies of the neural basis of sensory perception, plasticity and behaviour. Basic to the understanding of the brain is to know how the overall architecture of the nervous system relates to its function. We propose to study this by directly visualising the regions that are functionally active in the living brains of animals, down to resolution limits of less than 100 micrometres. Such "optical imaging" will be done by recording light reflected from the surface of the brain, which in turn depends upon activity-dependent intrinsic signals (eg. degree of oxygenation of haemoglobin). These signals will be recorded by a special camera and amplified using the requested system.Read moreRead less
Higher cognition and hemispheric specialization in an avian species: referential and intentional communication. We will discover whether alarm calls of Australian magpies, noted for their outstanding range of vocalisations, are referential (signalling predator type and location) and intentional (vocalised in specific contexts). Such complex communication , once thought to be unique to humans, has been found in some mammals and just one avian species, the domestic chick. This project will be the ....Higher cognition and hemispheric specialization in an avian species: referential and intentional communication. We will discover whether alarm calls of Australian magpies, noted for their outstanding range of vocalisations, are referential (signalling predator type and location) and intentional (vocalised in specific contexts). Such complex communication , once thought to be unique to humans, has been found in some mammals and just one avian species, the domestic chick. This project will be the first such investigation of an avian species in its natural habitat. This is important also because bird and mammalian brains are organised differently and birds offer a unique opportunity to discover whether one hemisphere is specialised for this purpose.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0561030
Funder
Australian Research Council
Funding Amount
$441,100.00
Summary
Developmental Imaging Facility. This application seeks to establish a facility to undertake expression profiling in vertebrate tissues on a genomic scale and at the highest resolution. Undertaking large scale projects of this nature requires specialised robotics and dedicated infrastructure for microscopy and tissue preparation. This facility will be the first of its type in Australia will permit researchers to perform genomic scale in situ screens, many as part of large international initiative ....Developmental Imaging Facility. This application seeks to establish a facility to undertake expression profiling in vertebrate tissues on a genomic scale and at the highest resolution. Undertaking large scale projects of this nature requires specialised robotics and dedicated infrastructure for microscopy and tissue preparation. This facility will be the first of its type in Australia will permit researchers to perform genomic scale in situ screens, many as part of large international initiatives in developmental and cellular biology. This large-scale, high-resolution expression profiling infrastructure is required to maintain international competitiveness and will dramatically improve our gene discovery, functional assessment and understanding of vertebrate development.Read moreRead less
Evolution, learning, and the use of multiple cues in desert ant navigation. This research on desert ants benefits Australia by fostering an international collaboration with one of the best European scientists, training students, and increasing knowledge about Australia's unique fauna, helping us to appreciate and better manage our fragile desert environments. With this international link, students working on this and related projects benefit intellectually from mingling with an international com ....Evolution, learning, and the use of multiple cues in desert ant navigation. This research on desert ants benefits Australia by fostering an international collaboration with one of the best European scientists, training students, and increasing knowledge about Australia's unique fauna, helping us to appreciate and better manage our fragile desert environments. With this international link, students working on this and related projects benefit intellectually from mingling with an international community of scientists.Understanding insect behaviour also has benefits for robotics. Work on desert ants has already resulted in robotic applications, and our outcomes concerning the optimal integration of multiple spatial cues are especially relevant.Read moreRead less
Towards a behavioural ecology of navigational memories in desert ants. Navigational memories (path integration, systematic search, and landmark use) in a Central Australian desert ant (Melophorus bagoti) and a North African desert ant (Cataglyphis fortis) are studied at the ants? natural habitats. The project tests predictions about behavioural properties of memory (how quickly it can be acquired, how long it lasts, and how a conflicting event affects it), based on a cost-benefit analysis of the ....Towards a behavioural ecology of navigational memories in desert ants. Navigational memories (path integration, systematic search, and landmark use) in a Central Australian desert ant (Melophorus bagoti) and a North African desert ant (Cataglyphis fortis) are studied at the ants? natural habitats. The project tests predictions about behavioural properties of memory (how quickly it can be acquired, how long it lasts, and how a conflicting event affects it), based on a cost-benefit analysis of the functions of each memory system. The project launches the first systematic cost-benefit analysis of memory, to establish a behavioural ecology of memory. We hope that it inspires cost-benefit analyses of other functions of the brain.Read moreRead less
Resurgent Sodium Currents in Peripheral Nerve Axons and Sensory Neurones. This project seeks evidence that unusual gating of sodium channels contributes to the hyperexcitability that results in spontaneous impulse activity in sensory axons. It asks whether axons normally behave as if they have this gating mode, whether it can be induced, whether any such behaviour is more prominent with sensory axons than motor, and whether the current can be measured directly in sensory neurones. The project is ....Resurgent Sodium Currents in Peripheral Nerve Axons and Sensory Neurones. This project seeks evidence that unusual gating of sodium channels contributes to the hyperexcitability that results in spontaneous impulse activity in sensory axons. It asks whether axons normally behave as if they have this gating mode, whether it can be induced, whether any such behaviour is more prominent with sensory axons than motor, and whether the current can be measured directly in sensory neurones. The project is the first to involve correlation of patch-clamp recordings with the behaviour of intact axons. Its outcomes will affect thought about sodium channel behaviour and may alter approaches to disorders of axonal excitability.Read moreRead less
Structure and function of a new class of multi-zinc finger (MZF) transcriptional regulators. An understanding of how genes are switched on and off during the development and lifetime of an organism is central to developing the ability to fight many diseases in a rational way. This project will advance our knowledge in this area at a fundamental molecular level by examining the mechanisms through which a specific set of proteins controls gene expression.
Neural mechanisms for human form perception. This project aims to determine if there is a single cortical mechanism underlying the human ability to discriminate and recognise objects. It has been speculated that different classes of objects, or forms require different processes. Demonstrating a single process would be a significant advance towards understanding the neural mechanisms giving rise to our ability to segment visual fields into meaningful objects and background. This research provides ....Neural mechanisms for human form perception. This project aims to determine if there is a single cortical mechanism underlying the human ability to discriminate and recognise objects. It has been speculated that different classes of objects, or forms require different processes. Demonstrating a single process would be a significant advance towards understanding the neural mechanisms giving rise to our ability to segment visual fields into meaningful objects and background. This research provides a means for testing models of the neural interactions thought to be generating human form perception and will help us discover how the visual cortex converts raw sensory input into object and form perception.Read moreRead less