Alcohol, Angry Rumination, And Aggression: The Role Of Acute Impairment Of Executive Functioning
Funder
National Health and Medical Research Council
Funding Amount
$341,780.00
Summary
In Australia, alcohol-induced aggression imposes substantial psychological, public health, social, and economic burdens on victims, perpetrators, and society. When people drink and brood over interpersonal transgresssions, they are at increased risk of violence, even toward the innocent. The goal of the proposed research is to identify neuropsychological mechanisms that account for this increased aggression.
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.
Genetic And Physiological Mechanisms Of Executive Control
Funder
National Health and Medical Research Council
Funding Amount
$577,226.00
Summary
The question of how genetic variation contributes to individual differences in cognitive ability has fascinated scientists for decades. Arguably, executive control processes mediated by the frontal cortex are critical to our uniquely human ability for voluntary action, decision and will. Using a variety of novel innovations, this project will provide fundamental knowledge by developing a unique link between genetic, behavioural and neural indices of executive control.
Action-reward Integration In The Amygdalocortical-striatal Network.
Funder
National Health and Medical Research Council
Funding Amount
$757,495.00
Summary
This research focuses on the neural bases of decision making, a general capacity affected by normal ageing, disorders associated with neurodegeneration, major psychiatric conditions, obesity and drug addiction. This program will contribute critical new knowledge on the brain systems through which cognitive and emotional processes are integrated to control choice and decision-making and the influence of neuropathology on this integrative process.
Insights Into The Acute Cerebral Lesion Of Childhood Diabetes And It's Neuropsychological Sequelae
Funder
National Health and Medical Research Council
Funding Amount
$416,000.00
Summary
Type 1 diabetes in childhood is a major cause of morbidity with an Australian prevalence of approximately 20 per 100,000 children under 15 years of age. The leading cause of death in type 1 diabetes in children and adolescents is diabetic ketoacidosis complicated by cerebral oedema (brain swelling), the origins of which remain unknown. This research is aimed at providing an insight into changes in the brain of children with diabetic ketoacidosis (DKA) and the relationship of these brain changes ....Type 1 diabetes in childhood is a major cause of morbidity with an Australian prevalence of approximately 20 per 100,000 children under 15 years of age. The leading cause of death in type 1 diabetes in children and adolescents is diabetic ketoacidosis complicated by cerebral oedema (brain swelling), the origins of which remain unknown. This research is aimed at providing an insight into changes in the brain of children with diabetic ketoacidosis (DKA) and the relationship of these brain changes to short and long term neuropsychological functioning. The major aim of this project is to provide an insight into brain changes of children with diabetic ketoacidosis (DKA) and the relationship of these brain changes to subseuqent brain function. This is a study where we will simply observe differences between newly diagnosed type 1 diabetic patients with no ktoacidosis, ketoacidosis or ketoacidosis with brain swelling over 6 months. We will measure brain function using various techniques includiung: magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), electrophysiology (EEG) and neuropsychological tests. The significance of this project is that it will provide insight into the brain impairment of diabetic patients with and without DKA, and with brain swelling in the context of DKA. By further clarifying the nature of brain impairment we will provide early intervention strategies to improve psychological development of the young patients with diabetes. In addition to this we hope to better understand the origins of brain swelling during DKA and design treatment protocols that will prevent this devastating complication.Read moreRead less
Development Of Executive Functions In Children With Frontal Lobe Lesions
Funder
National Health and Medical Research Council
Funding Amount
$160,379.00
Summary
Executive functions (EF), refer to the ability to problem solve, think flexibly and in abstract terms and pay attention. EFs are essential for managing daily life activities. The frontal lobes of the brain are believed be important in coordinating EFs. In childhood, frontal areas are developing rapidly and damage may affect ongoing development due to impairments in a child's capacity to function normally within their environment, interfering with adaptive functions such as new learning and reaso ....Executive functions (EF), refer to the ability to problem solve, think flexibly and in abstract terms and pay attention. EFs are essential for managing daily life activities. The frontal lobes of the brain are believed be important in coordinating EFs. In childhood, frontal areas are developing rapidly and damage may affect ongoing development due to impairments in a child's capacity to function normally within their environment, interfering with adaptive functions such as new learning and reasoning. Executive dysfunction in children manifests as disorganisation, impulsivity, inattention and inappropriate behaviour. Such problems are often masked in early chilhood, due to highly structured environments and support of parents and care-givers in day-to-day activities. However, as children mature, expectations of indepence increase and executive deficits become more apparent (ie. child 'grows into' these problems). Appropriate treatment and management is dependent on (i) improvement in early identification of patients at risk for such sequelae; (ii) establishing long-term consequences of executive deficits to ongoing development. This research aims to advance our understanding of EFs and their development through childhood, both in healthy children and children with cerebral lesions to regions believed to subsume EFs(ie the frontal lobes). While anecdotal case data is available, to our knowledge, no other study has attempted to do this using a longitudinal group design. Specific predictions include; (i) Children with frontal lobe damage will perform more poorly on EF measures, in comparison to children with damage to other cerebral areas and healthy children; (ii) Children with frontal lobe damage will show increasing deficits on EF tasks over time, reflecting an inability to acquire executive skills in the expected time frame, when compared with children with localised damage to cerebral areas excluding the frontal lobes, and healthy children.Read moreRead less
Adult Consequences Of Childhood Exposure To Psychological Trauma
Funder
National Health and Medical Research Council
Funding Amount
$292,530.00
Summary
The importance of childhood experience to adult adjustment (DOES THIS MAKE SENSE) is an issue of general public health interest. In particular, in the area of personality development, there are a number of theories concerning the importance of childhood experience and developmental stresses on later personality, development, psychological functioning and physical health. More recently there has been debate on the accuracy with which adults areable to remember traumatic experiences in childhood. ....The importance of childhood experience to adult adjustment (DOES THIS MAKE SENSE) is an issue of general public health interest. In particular, in the area of personality development, there are a number of theories concerning the importance of childhood experience and developmental stresses on later personality, development, psychological functioning and physical health. More recently there has been debate on the accuracy with which adults areable to remember traumatic experiences in childhood. This study will follow a group of 808 primary school children who were exposed to the 1983 Ash Wednesday bushfires in SOuth Australia. They were involved in a study which examined them two months, eight months and twenty six months after the disaster. This rich descriptive set of information about these children and their families forms an objective data base against which their adult recall of the experience can be judged. The symptoms of these children were also documented at the time as was their disaster exposure. The impact of this one event, in the context of the other developmental influences will be examined as determinants of their adjustment in adult life. Finally, there has been an increasing interest in the way that previous traumatic exposure influences the nature of the hormonal response to stress. Using a test of functioning of the cortisol system, the stress response of this population will be compared with a control population who were also studied at the time of the original disaster.Read moreRead less