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Volitional And Non-volitional Control Of Human Balance: Normal Physiology And Changes With Ageing
Funder
National Health and Medical Research Council
Funding Amount
$383,066.00
Summary
How does the brain control balance when we stand? Our research shows that two very distinct processes operate to produce distinct postural, perceptual and cardiovascular outcomes. These experiments investigate the neurophysiology that coordinates these systems and what happens with age. The results will fundamentally change views on balance control. Balance problems are common in neurological disorders and old age. Knowing how balance works will improve diagnosis, treatment and rehabilitation.
Understanding The Organisation Of The Medial Parietal Cortex: Sensorimotor Integration For Goal-directed Behaviour
Funder
National Health and Medical Research Council
Funding Amount
$551,862.00
Summary
Reaching and grasping are of obvious significance for a productive life, and many of the brain areas known to be involved in the direction of arm movements are located in the parietal lobe. Stroke affecting this part of the brain causes disability, as people become unable to reach accurately, or to close their hands around objects with appropriate strength. This project will combine modern physiological and anatomical methods to reveal the brain circuitry responsible for such crucial skills.
Characterising Post Stroke Neuroplasticity In Humans – Identifying A Critical Window For Rehabilitation
Funder
National Health and Medical Research Council
Funding Amount
$764,419.00
Summary
Despite major investment in care for stroke patients, almost all have persisting disability. Stroke causes loss of brain cells that cannot be replaced. Some recovery is possible through compensatory mechanisms. In addition, intact cells around the stroke undergo growth that is critical for recovery. Animal studies suggest these changes take place in a “critical window” after stroke. Applying therapies in this window should improve outcomes. We will use novel approaches to define the “critical wi ....Despite major investment in care for stroke patients, almost all have persisting disability. Stroke causes loss of brain cells that cannot be replaced. Some recovery is possible through compensatory mechanisms. In addition, intact cells around the stroke undergo growth that is critical for recovery. Animal studies suggest these changes take place in a “critical window” after stroke. Applying therapies in this window should improve outcomes. We will use novel approaches to define the “critical window” in patients after strokeRead moreRead less
Mechanisms Underlying Impaired Neuroplasticity In Adolescents Born Preterm
Funder
National Health and Medical Research Council
Funding Amount
$528,449.00
Summary
Preterm birth can lead to learning and motor deficits. We have preliminary evidence that these deficits last into adolescence and are due to a limited ability of the brain to reorganise (plasticity). We will confirm and characterise the learning/motor deficits seen in adolescents born preterm and explore if impaired plasticity is responsible. This project will provide vital information for the development of novel interventions to help children born prematurely to achieve best outcomes.
A Longitudinal Neuroimaging Study Investigating Reorganisation Of Cerebellar-cerebral Networks In Friedreich Ataxia
Funder
National Health and Medical Research Council
Funding Amount
$816,908.00
Summary
Friedreich ataxia (FRDA) causes debilitating motor and cognitive deficits. We propose a longitudinal multi-modal magnetic resonance (MR) imaging study to measure different types of tissue in the brain in this disease. We seek to understand how the brain reorganises itself due to cell loss in the spinal cord, cerebellum and cerebral cortex. This study will establish sensitivity of a range of MR imaging measures as potential biomarkers for use in large multi-centre drug trials in this disease.
Pathophysiology, Site Of Disease Onset And Mechanisms Of Spread In Amyotrophic Lateral Sclerosis
Funder
National Health and Medical Research Council
Funding Amount
$704,270.00
Summary
Amyotrophic lateral sclerosis (ALS) is a fatal disease of the human motor system resulting in progressive paralysis of voluntary muscles and death within 5 years of symptom onset. A key unresolved issue in the understanding of where ALS starts and what factors drive the disease. This project will utilise sophisticated techniques to determine the site of onset, factors controlling disease spread and ultimately identify treatment targets that could slow down or even stop disease progression.
Mechanisms And Pathways Leading To Saccadic Suppression In Primate Brain
Funder
National Health and Medical Research Council
Funding Amount
$858,086.00
Summary
Only the central few degrees of the visual field are viewed in high resolution. Consequently, the eyes must be pointed at targets of interest using saccadic eye movements. Each saccade generates potentially disturbing image motion but this is never perceived: saccadic suppression. This project aims to characterise the neural basis of saccadic suppression using modern techniques. As a result, a prime question in Neuroscience for over 100 years can now be answered.
Visuomotor Integration In The Medial Parietal Cortical Areas
Funder
National Health and Medical Research Council
Funding Amount
$665,163.00
Summary
This project will find out how the electrical activity of brain cells is used to direct the arms to a specific position in the space around a person's body. By understanding the code used by brain cells to perform this control of the arms, we will be able to "read" the brain activity directly, and use it to allow control of artificial arms by people who have been paralysed or had amputations.
Neural Circuits For Odour-processing In The Rodent Piriform Cortex 'in Vivo'
Funder
National Health and Medical Research Council
Funding Amount
$488,817.00
Summary
We are studying the brain circuits that enable mammals to recognise odours. We will apply puffs of odorants to the nose of an anaesthetised mouse while measuring electrical signals in the odour-processing region of its cerebral cortex. Our work will answer fundamental questions about how the brain interprets sensory inputs in order to build a coherent picture of the world. This is basic research that will, in the longer term, shed light on the disturbances that occur during mental illness.
Early Development, MicroRNAs, Dendritogenesis And Cognition
Funder
National Health and Medical Research Council
Funding Amount
$313,557.00
Summary
Neurodevelopmental disorders are characterised by a marked disruption of learning and memory, which is reflected by structural changes in the brains of affected individuals. However, little is known about the underlying mechanisms of this pathology or whether it is directly related to cognitive deficits across the lifespan. How the brain is wired during early development and its relationship to learning and memory in adulthood will therefore be determined.