Do Ongoing Cognitive Demands Affect The Efficacy Of Transcranial Electrical Brain Stimulation In Young And Older Healthy Adults?
Funder
National Health and Medical Research Council
Funding Amount
$627,857.00
Summary
Transcranial direct current stimulation (tDCS) of the brain is widely used to enhance cognitive and motor function in healthy individuals and people with neurological disorders. Unfortunately, the efficacy of tDCS is highly variable between individuals. This project tests the hypothesis that ongoing cognitive processes – particularly attention – play an important role in regulating the effect of tDCS on brain function. The knowledge gained will help refine tDCS as a clinical and research tool.
Nicotine abuse is the single greatest preventable risk factor for physical illness and death in Australians. Our understanding of the neural and cognitive mechanisms that underlie the transition from use to dependence is yet to be understood. The current proposal investigates the neural mechanisms underlying cognitive control, critical to self-control over the impulse for drug rewards, in non-dependent and dependent nicotine users.
Functional Electrical Stimulation Assisted Cycling (eStimCycle):A Novel Intervention To Improve Outcomes In The Critically Ill
Funder
National Health and Medical Research Council
Funding Amount
$868,811.00
Summary
The legacy of critical illness leaves millions of survivors worldwide with long lasting deficits in physical and brain function as well as anxiety, depression and post-traumatic stress disorder. Early rehabilitation may prevent or minimise these effects. This study evaluates the effectiveness of functional electrical stimulation of muscles with assisted in-bed cycling (eStimCycle) on muscle bulk, strength, physical and brain function at hospital discharge, 6 and 12 months.
A Randomised Controlled Trial Of Cognitive-only And Cognitive-motor Training To Prevent Falls In Older People: Understanding Physical, Neuropsychological And Neural Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$1,624,934.00
Summary
The rate of falls in older people remains a significant problem. We have developed and validated a home-based computerised training intervention that can be delivered either while seated (cognitive) or while standing and undertaking balance exercises (cognitive+motor). This unique design will allow us to assess whether cognitive and cognitive+motor training can prevent falls, as well as the neural, physiological, physical and neuropsychological mechanisms behind the intervention effects.
Testing The Imprecision Hypothesis Of Chronic Pain.
Funder
National Health and Medical Research Council
Funding Amount
$788,984.00
Summary
Pain usually occurs when something triggers activity in danger receptors, which are all over the body. The brain receives a huge amount of other sensory input too, which tells the brain what was happening when the danger arose. The brain imprints this sensory barrage and uses it as an early (painful!) warning system next time. If the imprint is imprecise, then the painful warning occurs in non-dangerous situations. We will test whether imprecise imprinting of the sensory input causes the gradual ....Pain usually occurs when something triggers activity in danger receptors, which are all over the body. The brain receives a huge amount of other sensory input too, which tells the brain what was happening when the danger arose. The brain imprints this sensory barrage and uses it as an early (painful!) warning system next time. If the imprint is imprecise, then the painful warning occurs in non-dangerous situations. We will test whether imprecise imprinting of the sensory input causes the gradual development of chronic debilitating pain.Read moreRead less
A Scalable Intervention For Increasing Vigorous Physical Activity Among Older Adolescents: The ‘ Burn To Learn ’ Cluster RCT
Funder
National Health and Medical Research Council
Funding Amount
$636,912.00
Summary
Physical inactivity has been described as a global pandemic and only 15% of Australian adolescents are sufficiently active. The pressure to perform in major school assessments drives many older adolescents to sacrifice physical activity to maximise academic performance. Our team has designed a time-efficient solution to increase physical activity in senior high school students using high intensity interval training which will be evaluated using a cluster randomised controlled trial.
This project examines the types of computations used by brain cells to combine two types of sensory information, in a way that allow us to reach better decisions in everyday life. To address this general problem, we will perform experiments that explore the combination of signals from vision and hearing. The ability to combine sensory information is vital to our mental health, and this process is compromised in a range of psychological, psychiatric and neurological disorders.
Taking A Break For Brain Health: Interacting Effects Of Exercise Bouts With Breaks In Sitting Time On Cognitive And Cerebrovascular Function In Overweight Adults
Funder
National Health and Medical Research Council
Funding Amount
$775,055.00
Summary
Whether people do or do not exercise or not, there are serious health consequences – including adult-onset diabetes and heart disease – arising from the 7 to 10 hours of sitting that most Australian adults do each day. Exercise helps to delay Alzheimer's disease and other declines in brain function with ageing. This study will test whether, among overweight adults, combining exercise with breaking up prolonged sitting time can improve markers of brain health and mental functioning.
CAN A MEDITERRANEAN DIETARY PATTERN IMPROVE COGNITIVE HEALTH AND PSYCHOLOGICAL WELLBEING?
Funder
National Health and Medical Research Council
Funding Amount
$717,301.00
Summary
There is increasing scientific and public interest in the role of diet and lifestyle in the prevention of cognitive decline. Easy to follow, modifiable lifestyle factors, such as diet, that improve cognitive function and reduce cognitive decline are attractive to middle aged and older Australians. We hypothesise that a Mediterranean diet pattern, consumed over 6 months, will improve cognitive function and psychological wellbeing in older men and women.
The changes of Alzheimer’s disease occur a decade prior to symptoms. Therefore we need longitudinal prospective data over 20 years to determine the risk factors in mid-life which, if modified, can improve our memory in late life. This study utilises a unique Australian Resource, the Women’s Healthy Ageing Study which has accrued information since 1991 on women aged 45-55 at baseline who are now 65-75 years of age. This study will develop guidelines for a preventative program.