Cognitive neuroscience of spatial asymmetry: behaviour, genes and brain imaging. When humans distribute their attention in space, biases or asymmetries of spatial attention exist. Healthy individuals exhibit a processing advantage favouring left space but this advantage is lost in disorders such as unilateral spatial neglect, ADHD and dyslexia. This project will develop novel electrophysiological methods to dissociate the sensory, attentional, decision-making and motoric contributions to spatial ....Cognitive neuroscience of spatial asymmetry: behaviour, genes and brain imaging. When humans distribute their attention in space, biases or asymmetries of spatial attention exist. Healthy individuals exhibit a processing advantage favouring left space but this advantage is lost in disorders such as unilateral spatial neglect, ADHD and dyslexia. This project will develop novel electrophysiological methods to dissociate the sensory, attentional, decision-making and motoric contributions to spatial asymmetries. By interfacing electrophysiology with genetic, neurochemical and brain imaging methods, this project will comprehensively map the biology of spatial asymmetry. This knowledge is vital to developing effective treatments for disorders where atypical patterns of spatial asymmetry index neurological vulnerability.Read moreRead less
Neural and cognitive studies of reward sensitivity and its influence on addiction-related behaviour. The proposed research aims to contribute to current scientific thinking on the influence of reward sensitivity on cognitive performance. Cognitive neuroscience research on this relationship is of major scientific interest because heightened reward sensitivity is a significant predictor of risk for a number of Australia's major social and economic problems. The findings of this project will contri ....Neural and cognitive studies of reward sensitivity and its influence on addiction-related behaviour. The proposed research aims to contribute to current scientific thinking on the influence of reward sensitivity on cognitive performance. Cognitive neuroscience research on this relationship is of major scientific interest because heightened reward sensitivity is a significant predictor of risk for a number of Australia's major social and economic problems. The findings of this project will contribute to the debate about how to manage such problems.Read moreRead less
Examining the relationship between error processing, cognitive control and emotion: a cognitive neuroscience approach. The proposed research aims to contribute to current scientific thinking on how the processing of errors influences self-monitoring and cognitive performance. The ability to monitor one's cognitive performance deteriorates with normal ageing, and is particularly affected in a range of clinical conditions, where it is a reliable predictor of a poor prognostic outcome. This project ....Examining the relationship between error processing, cognitive control and emotion: a cognitive neuroscience approach. The proposed research aims to contribute to current scientific thinking on how the processing of errors influences self-monitoring and cognitive performance. The ability to monitor one's cognitive performance deteriorates with normal ageing, and is particularly affected in a range of clinical conditions, where it is a reliable predictor of a poor prognostic outcome. This project aims to clarify understanding of the cognitive and neural processes underlying self-monitoring, as an important first step to improving rehabilitation and management methods for age-related impairments such as Alzheimer's disease, and prominent mental health conditions such as schizophrenia.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
Improving cognitive function in the elderly. The ageing population has been identified as one of the major issues facing contemporary Australian society. For Australia, human ageing has significant societal, economic and, importantly, personal/human costs. The economic costs associated with ageing reflect decreased productivity as well as a higher incidence of a variety of illnesses including cardiovascular and respiratory disease and, importantly, neurological conditions such as Parkinson's dis ....Improving cognitive function in the elderly. The ageing population has been identified as one of the major issues facing contemporary Australian society. For Australia, human ageing has significant societal, economic and, importantly, personal/human costs. The economic costs associated with ageing reflect decreased productivity as well as a higher incidence of a variety of illnesses including cardiovascular and respiratory disease and, importantly, neurological conditions such as Parkinson's disease (PD) and Alzheimer's disease (AD). We will complete two large scale studies examining the efficacy of twelve months administration of two pharmacologically active supplements in reducing the cognitive effects of aging in elderly participants.
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A developmental and neural analysis of learned and unlearned fear. This project aims to increase our understanding of the emotion of fear from both a developmental and a neural perspective. Anxiety disorders, which are characterised by the inability to appropriately regulate fear, are among the most prevelant psychological disturbances in industrialised countries. The present project involves a neurobiological analysis of fear in the developing rat, and will (i) test the dominant theoretical mod ....A developmental and neural analysis of learned and unlearned fear. This project aims to increase our understanding of the emotion of fear from both a developmental and a neural perspective. Anxiety disorders, which are characterised by the inability to appropriately regulate fear, are among the most prevelant psychological disturbances in industrialised countries. The present project involves a neurobiological analysis of fear in the developing rat, and will (i) test the dominant theoretical models of learned fear, (ii) compare the development of learned and unlearned fear, and (iii) provide a novel approach for studying whether learned behavioural responses are appropriate to the age of training or the age of testing.Read moreRead less
When is extinction not extinction? Disorders of fear and anxiety are widespread and impose significant burdens on individual sufferers and their families. This projects studies new ways of augmenting loss of fear and will identify the important behavioural mechanisms as well as critical brain pathways for this fear loss.
Examining the neural mechanisms underlying cognitive control and its application to clinical syndromes featuring dyscontrol. This project will examine the cognitive control and its underlying neural mechanisms. Understanding this relationship is of major scientific interest because cognitive control dysfunction is related to a number of Australia's major social and economic problems, including drug dependence.
Development of integrated biological markers of brain function. With the rapid growth of both brain imaging and genetics, we can now examine the biological basis of complex brain functions, such as memory. Our goal is to combine these techniques to develop evidence-based biological markers of normal function. These markers can then be used to screen for early signs of abnormal function (eg. in Alzheimer's disease) and to assess treatment effects. Two unique features ensure the project's feasibil ....Development of integrated biological markers of brain function. With the rapid growth of both brain imaging and genetics, we can now examine the biological basis of complex brain functions, such as memory. Our goal is to combine these techniques to develop evidence-based biological markers of normal function. These markers can then be used to screen for early signs of abnormal function (eg. in Alzheimer's disease) and to assess treatment effects. Two unique features ensure the project's feasibility: a) access to the first standardized, normative brain database (from the Brain Resource Company Ltd) and b) a scientific collaboration supporting the integration of brain imaging and genetics.Read moreRead less
The cognitive neuroscience of executive control: behavioural, physiological and genetic mechanisms. How genes influence our human abilities to think, reason and control behaviour has puzzled scientists for decades. The human genome project has allowed us to ask how individual genes influence these capacities. Understanding the genetics of these abilities provides a solid platform from which to launch gene discovery projects in clinical disorders where these abilities are compromised. The curr ....The cognitive neuroscience of executive control: behavioural, physiological and genetic mechanisms. How genes influence our human abilities to think, reason and control behaviour has puzzled scientists for decades. The human genome project has allowed us to ask how individual genes influence these capacities. Understanding the genetics of these abilities provides a solid platform from which to launch gene discovery projects in clinical disorders where these abilities are compromised. The current project is directly relevant to the genetics of mental disorders, such as attention deficit hyperactivity (ADHD), that place a large burden, both financially and emotionally, on our society. Understanding the genes and biological pathways that increase risk for mental disorders will ultimately lead to improved treatments for these conditions.Read moreRead less