Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100074
Funder
Australian Research Council
Funding Amount
$520,000.00
Summary
Facilities for automated high-throughput slide scanning and stereology. The equipment requested will facilitate the work of the Australian Mouse Brain Mapping Consortium, a consortium of Australian research groups collaborating to provide the only mouse model brain mapping capability in the country. The consortium brings together laboratory, neuroimaging and computational expertise in a comprehensive framework for imaging the mouse brain. This will help researchers to study mouse models of genet ....Facilities for automated high-throughput slide scanning and stereology. The equipment requested will facilitate the work of the Australian Mouse Brain Mapping Consortium, a consortium of Australian research groups collaborating to provide the only mouse model brain mapping capability in the country. The consortium brings together laboratory, neuroimaging and computational expertise in a comprehensive framework for imaging the mouse brain. This will help researchers to study mouse models of genetic and acquired disorders across the life-span. Remote viewing and analysis capabilities will help overcome the 'tyranny of distance', increasing national access to the facility. Repositories of digitised images will increase the availability of valuable research material to other Australian and international researchers.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
Cellular and Neurochemical Basis of Drug Addiction. Addiction to the major drugs of abuse, including heroin, amphetamines, cocaine, nicotine and alcohol damage the lives and cause premature death of more than 20% of Australians. Addiction produces long-term disruption of brain processes that lead to loss of control over urges to consume drugs and persistent cycles of relapse to drug taking. This research will apply new neurochemical approaches to discover mechanisms of disrupted brain function t ....Cellular and Neurochemical Basis of Drug Addiction. Addiction to the major drugs of abuse, including heroin, amphetamines, cocaine, nicotine and alcohol damage the lives and cause premature death of more than 20% of Australians. Addiction produces long-term disruption of brain processes that lead to loss of control over urges to consume drugs and persistent cycles of relapse to drug taking. This research will apply new neurochemical approaches to discover mechanisms of disrupted brain function that occur during development of addiction and relapse that are critical for development of better strategies to treat the disorder. Read moreRead less
Rhombomeric Topography of Structures in the Adult Mouse: Evidence from Avian Homologies and Transgenic Mice. The brainstem of birds has been shown to be formed by a line of segments, like carriages of a train. The same arrangement exists in the embryos of mammals, but is hidden in the adult mammalian brain. We will transfer our detailed knowledge of bird brains to make a maps of the brainstem segments in adult mice. We will then test this map with special gene markers which will reveal the occul ....Rhombomeric Topography of Structures in the Adult Mouse: Evidence from Avian Homologies and Transgenic Mice. The brainstem of birds has been shown to be formed by a line of segments, like carriages of a train. The same arrangement exists in the embryos of mammals, but is hidden in the adult mammalian brain. We will transfer our detailed knowledge of bird brains to make a maps of the brainstem segments in adult mice. We will then test this map with special gene markers which will reveal the occult segmental pattern in adult mice. This work will give us a new way of understanding the organisation of brainstem centres that control breathing, cardiovascular functions and emotional states.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL0992409
Funder
Australian Research Council
Funding Amount
$2,996,243.00
Summary
The neural bases of decision-making. This research focuses on the neural bases of decision making, a general capacity affected by normal ageing, disorders associated with neurodegeneration including dementia, major psychiatric conditions and drug addiction. Changes in the neural systems that result in the cognitive and emotional dissociation reflected in these disorders constitute the highest health, economic and social capital attrition burden to Australia of any disease group, a burden that is ....The neural bases of decision-making. This research focuses on the neural bases of decision making, a general capacity affected by normal ageing, disorders associated with neurodegeneration including dementia, major psychiatric conditions and drug addiction. Changes in the neural systems that result in the cognitive and emotional dissociation reflected in these disorders constitute the highest health, economic and social capital attrition burden to Australia of any disease group, a burden that is only predicted to increase as the population ages. Understanding these changes in neural systems and their specific behavioural effects is, therefore, of critical importance and will ultimately provide new targets for treatment and rehabilitation.Read moreRead less
THE AUTONOMIC, SOMATIC AND CENTRAL NEURAL RESPONSES TO DEEP AND SUPERFICIAL PAIN IN HUMAN SUBJECTS
Funder
National Health and Medical Research Council
Funding Amount
$375,750.00
Summary
Pain is a subjective experience, the intensity of which can be readily influenced by personal experience. Despite this, pain originating from a particular part of the body will usually be described by all individuals as having similar character. For example, pain arising from the skin is commonly described as being sharp or burning and is usually easy to localise, whereas pain arising from muscle is commonly dull, throbbing and diffuse. In addition to producing sensory changes, pain also evokes ....Pain is a subjective experience, the intensity of which can be readily influenced by personal experience. Despite this, pain originating from a particular part of the body will usually be described by all individuals as having similar character. For example, pain arising from the skin is commonly described as being sharp or burning and is usually easy to localise, whereas pain arising from muscle is commonly dull, throbbing and diffuse. In addition to producing sensory changes, pain also evokes changes in blood pressure, heart rate and motor activity (often in an attempt to remove the source of the pain). The proposed research aims to characterise the cardiovascular and motor patterns associated with pain originating in skin and in muscle and to examine the brain regions that produce these changes. More specifically, microelectrodes will be used to investigate changes in peripheral nerve activity during transient painful skin and muscle events in awake human subjects. In a separate investigation functional magnetic resonance imaging will be used to determine brain sites that are activated by skin or muscle pain.Read moreRead less
Investigating the mechanisms of flavonoid actions on glycine receptors. The research to be conducted in this project will use state-of-the-art electrophysiological and molecular biological approaches to carefully characterise the actions of certain flavonoid compounds on the glycine-receptor channel. These compounds have recently been reported to act as modulators of ligand-gated ion channels, proteins integral to brain function and disease. However, no-one has studied in any detail the mechan ....Investigating the mechanisms of flavonoid actions on glycine receptors. The research to be conducted in this project will use state-of-the-art electrophysiological and molecular biological approaches to carefully characterise the actions of certain flavonoid compounds on the glycine-receptor channel. These compounds have recently been reported to act as modulators of ligand-gated ion channels, proteins integral to brain function and disease. However, no-one has studied in any detail the mechanisms by which these compounds act. By discovering their site and mechanisms of action we will further our understanding of these important proteins and their modulation, maintain Australia's significant expertise in this field and provide leads for future development of drugs with potential therapeutic value.Read moreRead less
Microparticles as effectors of microvascular alterations in brain inflammation. Cerebral malaria (CM) kills many children worldwide, but we do not understand why their small blood vessels in the brain become obstructed. We found that tiny elements detached from cell membranes, called microparticles (MP), are dramatically elevated in the blood during CM. Our results strongly suggest that these MP are important in CM development. We have found that some drugs block the release of MP and the stick ....Microparticles as effectors of microvascular alterations in brain inflammation. Cerebral malaria (CM) kills many children worldwide, but we do not understand why their small blood vessels in the brain become obstructed. We found that tiny elements detached from cell membranes, called microparticles (MP), are dramatically elevated in the blood during CM. Our results strongly suggest that these MP are important in CM development. We have found that some drugs block the release of MP and the stickiness of malaria parasites to blood vessels. Our project will tackle the conditions of MP production and define new drugs to prevent it. It also will explain how the brain becomes affected by high numbers of MP. Our results will cast new light on why the brain functions abnormally when its blood vessels become modified.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
Validation of a New Conceptual Model of ADHD based on Underlying Central Nervous System Dysfunction. ADHD is a debilitating problem that affects 5% of children and approximately half as many adults. ADHD causes substantial problems at school and if untreated, predisposes the individual to increased drug and alcohol use, marital breakdown, criminal prosecution and psychiatric problems in later life. One problem is that we do not fully understand what are the causes of the disorder. This project w ....Validation of a New Conceptual Model of ADHD based on Underlying Central Nervous System Dysfunction. ADHD is a debilitating problem that affects 5% of children and approximately half as many adults. ADHD causes substantial problems at school and if untreated, predisposes the individual to increased drug and alcohol use, marital breakdown, criminal prosecution and psychiatric problems in later life. One problem is that we do not fully understand what are the causes of the disorder. This project will test the validity of several models of brain dysfunction in ADHD which have been influential in the literature, but poorly tested. Through better understanding of the basic underlying problems, more effective intervention can be developed.Read moreRead less