Discovery Early Career Researcher Award - Grant ID: DE180100741
Funder
Australian Research Council
Funding Amount
$342,996.00
Summary
Harnessing neural plasticity with brain stimulation. This project aims to investigate the links between the molecular mechanisms underlying brain plasticity and the effects of non-invasive brain stimulation. It will use a novel approach that integrates genetics, electrophysiology and biological modelling. Plasticity underpins all learning, memory and aging. Brain stimulation can drive plasticity in humans, but these effects are extremely difficult to harness and vary widely between people. Expec ....Harnessing neural plasticity with brain stimulation. This project aims to investigate the links between the molecular mechanisms underlying brain plasticity and the effects of non-invasive brain stimulation. It will use a novel approach that integrates genetics, electrophysiology and biological modelling. Plasticity underpins all learning, memory and aging. Brain stimulation can drive plasticity in humans, but these effects are extremely difficult to harness and vary widely between people. Expected outcomes include a critical understanding of the fundamental mechanisms governing plasticity. This will provide significant benefits such as the development of individually optimised brain stimulation protocols, enabling tailored, reliable approaches to address brain function and cognition.Read moreRead less
Boosting brain plasticity and motor function in older adults. Ageing is associated with a pronounced decline in many motor, cognitive, and other brain functions, but the cause remains elusive. This project will examine the mechanisms that contribute to a decline in brain plasticity and motor function in the elderly. Using novel brain stimulation techniques, the project aims to develop an optimal approach to boost plasticity in the ageing brain and improve motor function. A better understanding o ....Boosting brain plasticity and motor function in older adults. Ageing is associated with a pronounced decline in many motor, cognitive, and other brain functions, but the cause remains elusive. This project will examine the mechanisms that contribute to a decline in brain plasticity and motor function in the elderly. Using novel brain stimulation techniques, the project aims to develop an optimal approach to boost plasticity in the ageing brain and improve motor function. A better understanding of changes in brain function and plasticity with advancing age is expected to help to optimise the design of preventative programs aimed at rejuvenating motor and cognitive function in the elderly.Read moreRead less
The effect of temperature biofeedback on sleep and cardiac autonomic tone in young and aged adults. Peripheral heat loss is reported to promote sleep onset. To date, however, most studies examining the thermoregulatory model of sleep onset have used sedative-hypnotics with both thermoregulatory and soporific effects. We propose that a better test of a causal relationship between peripheral heat loss and sleep can be achieved by using temperature biofeedback; a promising non-invasive and non-dr ....The effect of temperature biofeedback on sleep and cardiac autonomic tone in young and aged adults. Peripheral heat loss is reported to promote sleep onset. To date, however, most studies examining the thermoregulatory model of sleep onset have used sedative-hypnotics with both thermoregulatory and soporific effects. We propose that a better test of a causal relationship between peripheral heat loss and sleep can be achieved by using temperature biofeedback; a promising non-invasive and non-drug treatment that does not have a direct effect on sleep structures. We aim to test whether increased peripheral heat loss promotes sleep onset, whether the effects are mediated by changes in autonomic tone, and whether this relationship changes with age.Read moreRead less
Common synaptic inputs to human upper airway muscles. Changes in the activity of upper airway muscles at sleep onset contribute to the development of Obstructive Sleep Apnoea. The aim of this project is to investigate how the brain controls upper airway muscles during wakefulness and sleep and to identify the pathological processes that lead to the development of Obstructive Sleep Apnoea.
"Evidence based" evaluation of treatment in ADHD. Attention deficit hyperactivity disorder (ADHD) is marked by limitations in diagnostic accuracy, psychobiological characterisation and assessment of treatment efficacy. A national consortium of scientists and clinicians is planning to address these issues using an assessment protocol recently developed by the Brain Resource Company Ltd, which involves integrated neuroscientific and psychometric measurement that taps many of the brain's informati ...."Evidence based" evaluation of treatment in ADHD. Attention deficit hyperactivity disorder (ADHD) is marked by limitations in diagnostic accuracy, psychobiological characterisation and assessment of treatment efficacy. A national consortium of scientists and clinicians is planning to address these issues using an assessment protocol recently developed by the Brain Resource Company Ltd, which involves integrated neuroscientific and psychometric measurement that taps many of the brain's information processing networks. Specifically, the aims of the project are to identify biological and cognitive markers that reflect ADHD in its untreated form, and markers that discriminate treatment effects relative to the pre treatment profile. The results from this study will be translated into a product that uses the protocol to provide a service able to profile ADHD more accurately and evaluate the effects of treatment.Read moreRead less
How inhibition shapes human brain oscillations and working memory capacity. This project aims to investigate the link between inhibitory mechanisms, gamma oscillations and working memory in humans. Retaining information in short-term ‘working’ memory is crucial for cognition, influencing our personality and intelligence. However, the brain mechanisms underlying this process are unclear. Evidence from animal/computational research indicates that brain oscillations in high frequency ‘gamma’ bands, ....How inhibition shapes human brain oscillations and working memory capacity. This project aims to investigate the link between inhibitory mechanisms, gamma oscillations and working memory in humans. Retaining information in short-term ‘working’ memory is crucial for cognition, influencing our personality and intelligence. However, the brain mechanisms underlying this process are unclear. Evidence from animal/computational research indicates that brain oscillations in high frequency ‘gamma’ bands, which depend on neural inhibition, are critical for working memory. Mapping a path from molecules to cognition will detail how neural mechanisms shape human behavioural performance and guide efforts to enhance memory and cognitive function.Read moreRead less
Left of centre: Attentional distortions in the mental representation of space in healthy and clinical populations. Stroke patients cost the Australian economy $1.3bn pa in addition to their social burden, but effective diagnosis and rehabilitation is impeded by a lack of fundamental research into the cognitive and neural mechanisms that underlie attentional disorders. Our research will provide significant new insights into how the brain deploys attention in external and imagined space and will l ....Left of centre: Attentional distortions in the mental representation of space in healthy and clinical populations. Stroke patients cost the Australian economy $1.3bn pa in addition to their social burden, but effective diagnosis and rehabilitation is impeded by a lack of fundamental research into the cognitive and neural mechanisms that underlie attentional disorders. Our research will provide significant new insights into how the brain deploys attention in external and imagined space and will lead to more effective management and treatment of stroke victims. Our new test of attentional disorders is independent of a patient's inability to see or move and will enable more effective diagnosis. Our research provides the fundamental knowledge base for our discipline and is vital for developing the next generation of Australia's cognitive neuroscientists. Read moreRead less
The Ontogeny of Pain Behaviour: A Novel Neuroimmune Pathway. In Australia, 20% of the population report suffering from chronic pain. The cost of pain to Australian business per year is over $3 billion. Attempts to explain many chronic pain states, based on current knowledge, have failed. The central hypothesis of this project is that pain sensitivity is determined by programming of the fetal immune system during pregnancy. This research proposal will determine whether exposure to infection early ....The Ontogeny of Pain Behaviour: A Novel Neuroimmune Pathway. In Australia, 20% of the population report suffering from chronic pain. The cost of pain to Australian business per year is over $3 billion. Attempts to explain many chronic pain states, based on current knowledge, have failed. The central hypothesis of this project is that pain sensitivity is determined by programming of the fetal immune system during pregnancy. This research proposal will determine whether exposure to infection early in life determines sensitivity to pain in adult life. In doing so, this research offers a new theoretical explanation for the ontogeny of pain and may begin to account for the many forms of chronic pain that are currently not only unexplainable from current pain theory, but difficult to manage clinically.Read moreRead less
Killing which averts suffering: the role of norms and empathy. Abattoir workers and butchers kill animals to prepare food, farmers to cull stock, and veterinarians to alleviate suffering. Soldiers kill other humans in war, police or security guards to protect the public, and doctors to enact legal euthanasia. Research shows that these tasks can be confronting, and even traumatic. This project aims to test the processes through which people learn socially supported palliative killing to avert suf ....Killing which averts suffering: the role of norms and empathy. Abattoir workers and butchers kill animals to prepare food, farmers to cull stock, and veterinarians to alleviate suffering. Soldiers kill other humans in war, police or security guards to protect the public, and doctors to enact legal euthanasia. Research shows that these tasks can be confronting, and even traumatic. This project aims to test the processes through which people learn socially supported palliative killing to avert suffering and their neural underpinnings, with a focus on norms and empathic distress. It will focus on two core samples: veterinarians, who must euthanize animals, and health practitioners in Victoria, where legal changes will introduce ‘voluntary assisted dying’ in mid-2019. It will investigate how practitioners learn palliative killing, and what the impact is on psychological variables such as empathy and identity. It will generate new understandings of social influence around life and death decisions, provide an evidence basis to inform policy makers, and help institutions and practitioners seeking to manage distress and respond to fast-moving, controversial policy changes.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100667
Funder
Australian Research Council
Funding Amount
$328,000.00
Summary
How “known unknowns” become known: How do people encode unpredictability? As Donald Rumsfeld noted, there are 'known unknowns’. That is to say, people are seemingly capable of learning that some things cannot be reliably predicted. This learning underpins decisions from the trivial (whether to pack a jacket) to the life-defining (whom to marry). An aberrant form of this learning may also underlie mental health disorders. Yet the mechanisms of such learning have been largely overlooked by cogniti ....How “known unknowns” become known: How do people encode unpredictability? As Donald Rumsfeld noted, there are 'known unknowns’. That is to say, people are seemingly capable of learning that some things cannot be reliably predicted. This learning underpins decisions from the trivial (whether to pack a jacket) to the life-defining (whom to marry). An aberrant form of this learning may also underlie mental health disorders. Yet the mechanisms of such learning have been largely overlooked by cognitive scientists and thus are poorly understood. The project, which is based on significant pilot data, aims to examine when and how people learn about unpredictability, and what the cognitive, memorial, neural and affective consequences of this learning are.Read moreRead less