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Insight And Cognitive Decline In Older Adults With Mild Cognitive Impairment
Funder
National Health and Medical Research Council
Funding Amount
$399,600.00
Summary
Australia's population is aging rapidly and so is the frequency of age-related disorders. Dementia is one of the most frequent mental health disorders and one of the leading causes of years of life lost due to disability in Australia. Therefore it is important to be able to identify older adults at high risk of developing dementia in order to be able to introduce preventative strategies. One important risk factor for cognitive decline is the presence of mild cognitive impairment (MCI) in older a ....Australia's population is aging rapidly and so is the frequency of age-related disorders. Dementia is one of the most frequent mental health disorders and one of the leading causes of years of life lost due to disability in Australia. Therefore it is important to be able to identify older adults at high risk of developing dementia in order to be able to introduce preventative strategies. One important risk factor for cognitive decline is the presence of mild cognitive impairment (MCI) in older adults who complain about memory problems. However many subjects with MCI do not develop dementia and it remains a challenge to identify those with pre-dementia amongst those with MCI. The purpose of this study is to investigate whether reduced awareness of cognitive impairment is a better predictor of cognitive decline and dementia than having memory complaints . To investigate the association of reduced awareness and cognitive decline, 80 participants with MCI and 80 healthy controls will be followed over a period of 24 months. Awareness will be measured and compared to information on cognitive and functional impairment given by the participant and an informant. Additionally, information from neuroimaging and laboratory studies will be collected to determine it's interaction with reduced awareness.Read moreRead less
A Randomised Clinical Trial Of Physical Activity For The Treatment Of Older Adults With Mild Cognitive Impairment
Funder
National Health and Medical Research Council
Funding Amount
$280,250.00
Summary
Australia's population is aging rapidly and so is the frequency of age-related diseases. Dementia and depression are the most frequent mental health disorders of older people. They are also the leading causes of years of life lost due to disability in Australia. The results of recent studies have shown that memory difficulties and dementia are associated with potentially modifiable risk factors, such as physical activity. The purpose of this study is to investigate whether a physical activity pr ....Australia's population is aging rapidly and so is the frequency of age-related diseases. Dementia and depression are the most frequent mental health disorders of older people. They are also the leading causes of years of life lost due to disability in Australia. The results of recent studies have shown that memory difficulties and dementia are associated with potentially modifiable risk factors, such as physical activity. The purpose of this study is to investigate whether a physical activity program for older adults decreases cognitive decline and conversion to dementia in a population at risk: mild cognitive impairment (MCI). 168 subjects with MCI will be randomised (by chance, like the flip of a coin) to either the intervention program of physical activity or usual care - their cognitive (such as memory) performance will be compared at the end of 24 months.Read moreRead less
Early Detection Of MCI And Dementia Using Multidimensional Analysis Of Structural MRI By Computational Methods
Funder
National Health and Medical Research Council
Funding Amount
$583,601.00
Summary
Dementia in elderly is a major public health problem, and mild cognitive impairment (MCI), is even more common. We propose to use recent computational anatomy algorithms from our group to develop novel multidimensional imaging biomarkers for early detection of brain anatomical changes due to MCI-dementia. We aim at identifying early signatures of MCI-dementia, thus making early treatment possible. The completion of our research will provide clinicians with new methods for the early diagnosis.
IRAP inhibitors are currently being developed as a new class of drugs for treating dementia and other forms of memory deficits. However, there are still gaps in our knowledge about how these drugs act to improve memory. The experiments outlined in this proposal will provide important insights into the drug action in different mouse models of memory deficit.
What Is The Burden Of Dementia In Urban Dwelling Indigenous Australians?
Funder
National Health and Medical Research Council
Funding Amount
$1,571,527.00
Summary
The main aim of this research project is to determine what proportion of Aboriginal people aged 45 years and older who live in urban areas of NSW, have dementia. We hope to establish what types of dementia occur amongst Aboriginal people, what the causes are, and how we can best measure dementia. We will also focus on what types of problems dementia causes for both people with the condition and their carers. What is the meaning of dementia for Aboriginal people themselves?
Fatigue, Attention And Sleep Disturbance After Traumatic Brain Injury
Funder
National Health and Medical Research Council
Funding Amount
$328,050.00
Summary
Traumatic brain injury (TBI) is a major cause of disability in young people. A major obstacle to the rehabilitation of these young people and their return to work or study is their susceptibility to fatigue post-injury. Sleep disturbance is also often reported following TBI and this may accentuate fatigue. Suprisingly, little research has been conducted on the nature, causes or progression of fatigue and sleep disorders following TBI and their possible interrelationships. This study aims to inve ....Traumatic brain injury (TBI) is a major cause of disability in young people. A major obstacle to the rehabilitation of these young people and their return to work or study is their susceptibility to fatigue post-injury. Sleep disturbance is also often reported following TBI and this may accentuate fatigue. Suprisingly, little research has been conducted on the nature, causes or progression of fatigue and sleep disorders following TBI and their possible interrelationships. This study aims to investigate the incidence and extent of fatigue in a large group of people who have experienced a TBI compared to a control group, how fatigue changes over time and its impact on daily life. The study will also address whether higher fatigue levels are associated with decreased attention and speed of information processing. Changes in sleep patterns will also be investigated using both subjective measures, such as sleep quality and daytime sleepiness, and objective physiological measures, such as the time of dim light melatonin onset and polysomnography, comparing the head injured group with controls. The interrelationships between fatigue and sleep changes will then be examined and also their association with injury severity, the location of the brain injury, the time since the injury, age, the presence of any cognitive impairments and the incidence of depression. The project has the potential to provide valuable information to healthcare professionals on the diagnosis of fatigue and sleep disorders in head injury patients. The investigation of the nature, causes and impact of fatigue and sleep disorders could also provide a basis for therapy. For example, fatigue and problems with attention and slowed information processing can be minimized by restructuring lifestyle demands and simple and effective treatments are available for many sleep disturbances, such as bright light therapy and-or exogenous melatonin.Read moreRead less
Determining The Cognitive Sequelae Of Adolescent Cannabis Use: A Longitudinal Cohort Study.
Funder
National Health and Medical Research Council
Funding Amount
$259,731.00
Summary
Adult cannabis users have problems with memory and attention, but it is not known to what extent these cognitive deficits relate to premorbid intellectual functioning or underlying personality features. Further, it is not known to what extent cannabis use during adolescence (when the brain is still developing), may lead to greater cognitive impairment. This study will directly address these questions utilising a large sample of adolescents followed since entry to high school.
The Cognitive Impact Of Opioids During Chronic Administration
Funder
National Health and Medical Research Council
Funding Amount
$416,024.00
Summary
Many people are now being prescribed opioid drugs for long periods of time, mainly for the treatment of chronic pain. These drugs can adversely affect the person's ability to drive a car, hold down a job, and perform normal functions of daily living. This project will investigate what types of impairment are produced by these drugs and how the drugs can best be used so as to minimise the effects on patients.
Cardiac Intervention, Surgery And Cognitive Outcome (CISCO) Study
Funder
National Health and Medical Research Council
Funding Amount
$367,739.00
Summary
We propose to investigate the association between the presence of coronary artery disease and changes in brain function after therapeutic interventions. Patients undergoing surgery for coronary heart disease are prone to experience changes in mental function and higher level thought processes (cognition) after surgery, especially if they are elderly. As the population ages this is becoming a more significant problem. There is some limited evidence that this particular group of patients has a hig ....We propose to investigate the association between the presence of coronary artery disease and changes in brain function after therapeutic interventions. Patients undergoing surgery for coronary heart disease are prone to experience changes in mental function and higher level thought processes (cognition) after surgery, especially if they are elderly. As the population ages this is becoming a more significant problem. There is some limited evidence that this particular group of patients has a higher incidence of cognitive impairment than the normal population even before they present for surgery, because cardiovascular disease has also been shown to be associated with changes in cognition. To investigate this, we will measure cognitive status in patients over the age of 55 who have coronary artery disease and are being investigated with coronary angiography. This will provide an indication of the baseline cognitive status in patients presenting with coronary vascular disease. We will use validated neuropsychological tests that have been used to assess potsoperative cognitive decline. These tests are sufficiently sensitive to detect subtle changes in a number of areas of thought processing (cognitive domains) and thus identify those subjects who have cognitive impairment. Patients will then go on to be treated by surgery or angioplasty. We will continue to test these patients at time intervals for 3 months in order to track the changes in cognition in each treatment group. Thus we will be in the position to compare how these modalities of treatment for heart disease impact on patients mental function and cognition. In addition we will be able to tell whether a 'recovery' period might be of benefit following coronary angiography. If we are able to demonstrate different cognitive outcomes from different treatments and also an association with pre-existing cognition, this will guide clinical decision making to minimise harm to the brain.Read moreRead less
The ability to monitor one's cognitive performance deteriorates with normal ageing, and is particularly affected in a range of clinical conditions of older age, such as Parkinson's Disease, where it is a predictor of a poor prognostic outcome. This project aims to clarify the effects of age on cognitive and neural processes underlying performance monitoring, as an important first step to improving interventions for age-related impairments, including those accompanying neurodegenerative diseases.