An Investigation Of The Effects Of Higher Plasma Glucose In The Normal Range On Cerebral Health.
Funder
National Health and Medical Research Council
Funding Amount
$727,524.00
Summary
Until recently it has been assumed that variation in blood sugar levels within the normal range in non-diabetics is innocuous. Recent findings from our team suggest that high normal sugar levels present risks to brain and cognitive health. This project will investigate in detail the extent to which higher sugar levels in healthy individuals living in the community are associated with brain changes over time, and whether these changes are associated with cognitive decline in middle- and old-age.
Neurodevelopment During Adolescence: A Longitudinal Imaging Study
Funder
National Health and Medical Research Council
Funding Amount
$1,706,589.00
Summary
Adolescence is a risk period for the emergence of psychiatric disorders. It is also a time of rapid change in the brain, but few studies have detailed changes in neurodevelopment during this sensitive period. We will study twins from early adolescence and use brain imaging to investigate changing brain patterns as the brain matures, and thereby, gain insight into factors responsible for increasing our risk or resilience for major mental health conditions and optimal points for intervention.
Functional Neuroimaging Of Prepulse Inhibition In Schizophrenia And Parkinson's Disease
Funder
National Health and Medical Research Council
Funding Amount
$446,750.00
Summary
Inhibition deficits have been consistently demonstrated in a broad spectrum of neuropsychiatric conditions that have been implicated with altered neurotransmitter function of the brain. These conditions include mental disorders like schizophrenia, obsessive-compulsive disorder, and pathological gambling and neurological disorders like Huntington's disease, Gilles-de-la-Tourette syndrome and other conditions which are characterised by impaired impulse control. Studies on animal models suggest tha ....Inhibition deficits have been consistently demonstrated in a broad spectrum of neuropsychiatric conditions that have been implicated with altered neurotransmitter function of the brain. These conditions include mental disorders like schizophrenia, obsessive-compulsive disorder, and pathological gambling and neurological disorders like Huntington's disease, Gilles-de-la-Tourette syndrome and other conditions which are characterised by impaired impulse control. Studies on animal models suggest that an impaired dopamine neurotransmission - either genetically pre-determined and-or stress-induced by environmental factors - may significantly contribute to a common pathological mechanism across these conditions that, in turn, results in impaired 'sensory motor gating', a physiological measure of inhibitory brain processes. Traditionally, sensory motor gating is indirectly measured using the acoustic startle eye-blink response. However, this peripheral measure cannot directly assess the brain processes underlying sensory motor gating. This study will apply new functional brain imaging methodology and EEG-based source localisation techniques to assess the neural substrates of inhibitory processes involved in sensory motor gating in two neuropsychiatric conditions that involve dysfunctional dopaminergic mechanisms: schizophrenia and Parkinson's disease.Read moreRead less
Wernicke-Korsakoff syndrome is a common and frequently undiagnosed neurological disease due to thiamine deficiency. The condition leads to cognitive and neurological disability and mostly affects people with alcohol dependence. Wernicke-Korsakoff syndrome is eminently treatable with thiamine, although we have insufficient knowledge regarding the best dose of thiamine to treat the condition. This project proposes two controlled trials to evaluate treatment effectiveness of thiamine for Wernicke-K ....Wernicke-Korsakoff syndrome is a common and frequently undiagnosed neurological disease due to thiamine deficiency. The condition leads to cognitive and neurological disability and mostly affects people with alcohol dependence. Wernicke-Korsakoff syndrome is eminently treatable with thiamine, although we have insufficient knowledge regarding the best dose of thiamine to treat the condition. This project proposes two controlled trials to evaluate treatment effectiveness of thiamine for Wernicke-Korsakoff syndrome.Read moreRead less
A Prospective Study Of Concussion In Children And Adolescents: Diagnosis, Recovery And Risk Factors For Poor Outcome.
Funder
National Health and Medical Research Council
Funding Amount
$277,000.00
Summary
Concussion is one of the most common neurological injuries and represents a significant public health issue in Australia. The most common consequences of concussive injuries are reduced attention, slowed response speeds and memory impairment. These cognitive processes are critical for performing common day-to-day activities in childhood and adolescence (e.g. acquiring new knowledge and skills, attending to school work). Approximately 20% of concussive injuries occur during participation in organ ....Concussion is one of the most common neurological injuries and represents a significant public health issue in Australia. The most common consequences of concussive injuries are reduced attention, slowed response speeds and memory impairment. These cognitive processes are critical for performing common day-to-day activities in childhood and adolescence (e.g. acquiring new knowledge and skills, attending to school work). Approximately 20% of concussive injuries occur during participation in organised sport. In adult populations, there are now evidence-based guidelines for the diagnosis and management of concussion in sport. Few well-controlled studies exist to identify the frequency and outcome of such injuries in child and adolescent populations, and there are currently no guidelines for diagnosis and management of concussion in children. Further, the academic and social consequence of concussion for the child remains unknown. This study will investigate the cognitive and behavioural outcomes of concussion in young children and adolescents and will use this information to modify and validate currently available adult concussion diagnosis and management paradigms for application with this population. This study will also investigate risk factors for poor outcome following concussion in children and adolescents, and provide age-appropriate data for use in the medical, behavioural and educational management of concussed children and adolescents. A total of 3000 children aged between 10 and 18 years will be recruited to participate in this study. All participants will undergo a baseline evaluation consisting of memory and attention tests, a behavioural rating scale, and measures of educational ability. Participants parents will also provide general health and demographic information. Children who are concussed during the year will be re-assessed within 48 hours of injury and again at 5 days, 10 days and 30 days post-injury to track recovery.Read moreRead less
Panic Disorder: Neurobiology And Mechanisms Of Cardiac Risk
Funder
National Health and Medical Research Council
Funding Amount
$456,657.00
Summary
Some people are subject to episodes of recurring, often inexplicable anxiety which are very unpleasant and accompanied by physical symptoms such as sweating, palpitations, tremor and a sensation of suffocation. Recurring attacks over a period of months, or years, forms the basis for the diagnostic of panic disorder. It has until recently been felt that although panic disorder was distressing and disabling, it did not constitute a risk of life. Sufferers often fear that they have heart disease, b ....Some people are subject to episodes of recurring, often inexplicable anxiety which are very unpleasant and accompanied by physical symptoms such as sweating, palpitations, tremor and a sensation of suffocation. Recurring attacks over a period of months, or years, forms the basis for the diagnostic of panic disorder. It has until recently been felt that although panic disorder was distressing and disabling, it did not constitute a risk of life. Sufferers often fear that they have heart disease, because of the nature of their symptoms, but have been reassured that this is not the case. Recent epidemiological studies, however, indicate that there is an increased risk in patients with panic disorder. Our hypotheses in this research project are as follow: That some specific genes predispose to the development of panic disorder - through actions on the nervous system and blood vessels That drug treatment (selective serotonin uptake blockers) and psychological treatment (cognitive behaviour therapy, CBT) reduce cardiac risk in panic disorder We will test these hypothesis using state of the art clinical scientific methods. Panic disorder has an important cardiological dimension which needs to be better understood for cardiac protection to be achieved in panic disorder patients.Read moreRead less