Defensive behaviours elicited by predator odours. Rats display a powerful anxiety responses when confronted with the odours of predators such as cats. This response may occur even though rats have never encountered an actual predator before. This project aims to investigate the nature of this anxiety and the nature of the stimuli that produce it. The outcomes should be a better understanding of the neural basis and pharmacology of anxiety states and the identification of novel chemicals that hav ....Defensive behaviours elicited by predator odours. Rats display a powerful anxiety responses when confronted with the odours of predators such as cats. This response may occur even though rats have never encountered an actual predator before. This project aims to investigate the nature of this anxiety and the nature of the stimuli that produce it. The outcomes should be a better understanding of the neural basis and pharmacology of anxiety states and the identification of novel chemicals that have powerful rodent repellent properties. Such chemicals may be of great use in domestic and agricultural contexts where rodents are pests.Read moreRead less
Mechanisms underlying the repellent effects of predator odours in rodents. Rodents show innate fear towards the fur and skin odours of cats. This project seeks to describe the mechanisms behind this phenomenon and determine the potential of cat fur odours as rodent repellents in the field. The project plans to first verify the repellent effects of cat fur on various rat species and house mice in various field locations. It then plans to isolate, identify and synthesise the molecules in cat fur t ....Mechanisms underlying the repellent effects of predator odours in rodents. Rodents show innate fear towards the fur and skin odours of cats. This project seeks to describe the mechanisms behind this phenomenon and determine the potential of cat fur odours as rodent repellents in the field. The project plans to first verify the repellent effects of cat fur on various rat species and house mice in various field locations. It then plans to isolate, identify and synthesise the molecules in cat fur that cause rodent repellent effects and determine their action on rodent pheromone-sensing receptors. Novel cat fur-derived molecules identified in the laboratory will be further tested in the field. Expected project outcomes will be a powerful new rodent repellent with the potential to protect crops and homes, and an understanding of the precise physiological mechanisms whereby feline odours can repel rats and mice which could be used to further develop novel rodent repellents.Read moreRead less
Improving asthma device use: Innovative models for inter-professional practice. This project falls within the goals of National Priority 2: promoting and maintaining good health. This project has the potential to affect every individual accessing health care in the Australia. Through its approach to and focus on improving the use of asthma medications this project will impact on: the quality use of medicines and health outcomes for patients. Through its focus on health professional relationships ....Improving asthma device use: Innovative models for inter-professional practice. This project falls within the goals of National Priority 2: promoting and maintaining good health. This project has the potential to affect every individual accessing health care in the Australia. Through its approach to and focus on improving the use of asthma medications this project will impact on: the quality use of medicines and health outcomes for patients. Through its focus on health professional relationships and interdisciplinary approach to community health care it will result in: improved interprofessional relationships and a model of collaboration which has the potential to be implemented on a broad scale in the community.Read moreRead less
Cardiovascular and Respiratory Activity During Sleep Onset. Going to sleep requires that behavioural and physiological activities be modified. This is achieved by the integrated activity of sleep mechanisms and the circadian system. In this project we will investigate the nature of the regulatory control exerted by sleep mechanisms over respiration and cardiovascular activity at sleep onset, how sleep control interacts with circadian influence, and the nature of cardio-respiratory activity when ....Cardiovascular and Respiratory Activity During Sleep Onset. Going to sleep requires that behavioural and physiological activities be modified. This is achieved by the integrated activity of sleep mechanisms and the circadian system. In this project we will investigate the nature of the regulatory control exerted by sleep mechanisms over respiration and cardiovascular activity at sleep onset, how sleep control interacts with circadian influence, and the nature of cardio-respiratory activity when sleep control is removed at an arousal from sleep. It is anticipated that a better understanding of the regulatory control exerted by sleep over other systems will improve our understanding of sleep disorders.Read moreRead less
Respiratory and Cardiovascular Activation at Arousal from Sleep. An arousal from sleep, no matter how brief, is assciated with increased activity in the respiratory and cardiac systems. Under normal circumstances the response is considered adaptive. However, in disorders of sleep in which individuals arouse frequently and their sleep is fragmented, such as in Obstructive Sleep Apnea, the phenomenon has been linked to hypertension. While the clinical consequences of sleep fragmentation are now ap ....Respiratory and Cardiovascular Activation at Arousal from Sleep. An arousal from sleep, no matter how brief, is assciated with increased activity in the respiratory and cardiac systems. Under normal circumstances the response is considered adaptive. However, in disorders of sleep in which individuals arouse frequently and their sleep is fragmented, such as in Obstructive Sleep Apnea, the phenomenon has been linked to hypertension. While the clinical consequences of sleep fragmentation are now apparent, the mechanism that causes the increase in physiological activity at each arousal, is not known. The aim of this project will provide insight into the mechanism that produces the activation response and provide a basis for minimising the cardiac consequences of sleep disorders.Read moreRead less
Learning about threats: the neural and behavioural response to predator-related cues in rodents. This project will investigate the anxiety displayed by rats when confronted with the odours of predators such as cats. This anxiety may be very similar to that experienced by humans who suffer from anxiety disorders such as phobias. By investigating the nature of this anxiety, the nature of the stimuli that produce it, and the learning and neural processes that underlie it we may better understand h ....Learning about threats: the neural and behavioural response to predator-related cues in rodents. This project will investigate the anxiety displayed by rats when confronted with the odours of predators such as cats. This anxiety may be very similar to that experienced by humans who suffer from anxiety disorders such as phobias. By investigating the nature of this anxiety, the nature of the stimuli that produce it, and the learning and neural processes that underlie it we may better understand human anxiety. The project also aims to identify novel chemicals in the fur of cats that have rodent repellent properties. Such chemicals may be of great use in domestic and agricultural contexts where rodents are pests.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.
Sleep and circadian influences on mood and Autonomic Nervous System control of the heart. Most biological and behavioural processes have a 24-hour oscillation in activity. A critical question is whether this oscillation is a consequence of the sleep-wake cycle or the circadian system (our internal biological clock). This project will investigate circadian influence over two biological systems that have important influences over behaviour, the Autonomic Nervous System (ANS) and the Behavioural Fa ....Sleep and circadian influences on mood and Autonomic Nervous System control of the heart. Most biological and behavioural processes have a 24-hour oscillation in activity. A critical question is whether this oscillation is a consequence of the sleep-wake cycle or the circadian system (our internal biological clock). This project will investigate circadian influence over two biological systems that have important influences over behaviour, the Autonomic Nervous System (ANS) and the Behavioural Facilitation System (BFS). Specifically, we will investigate the relationship between circadian control of the heart and the induction and quality of sleep, and the circadian influence on aspects of personality (neuroticism) and mood (Positive Affect) that are related to the BFS.Read moreRead less
Depression and Diabetes: Prevalence, diagnosis and help-seeking: Influence on depression, glycemic control and quality of life. Depression has been reported to be twice as prevalent and more persistent in individuals with diabetes than in the general population. The current research will investigate the point-prevalence of depression in a large sample of Australian diabetic outpatients using a case-finding instrument (CES-D) and follow-up structured clinical interview where appropriate. Demogr ....Depression and Diabetes: Prevalence, diagnosis and help-seeking: Influence on depression, glycemic control and quality of life. Depression has been reported to be twice as prevalent and more persistent in individuals with diabetes than in the general population. The current research will investigate the point-prevalence of depression in a large sample of Australian diabetic outpatients using a case-finding instrument (CES-D) and follow-up structured clinical interview where appropriate. Demographic, medical, and psychological correlates of depressiono will be investigated. The effects of the screening procedure and diagnosis on help-seeking behaviour, course of the depression, self-care, and glycemic control as well as qualtiy of life will be evaluated after six months.Read moreRead less
Hemispheric asymmetry of motor and language representation: Effects of hand preference and mirror movements. The neuroscience community has recently exploited advances in brain imaging to understand cerebral representation of many cognitive functions. The proposed study will expand our knowledge of brain-behaviour relationships, another key area of cognitive neuroscience research. Its successful funding and completion will increase Australia's standing as a major contributor to world research ou ....Hemispheric asymmetry of motor and language representation: Effects of hand preference and mirror movements. The neuroscience community has recently exploited advances in brain imaging to understand cerebral representation of many cognitive functions. The proposed study will expand our knowledge of brain-behaviour relationships, another key area of cognitive neuroscience research. Its successful funding and completion will increase Australia's standing as a major contributor to world research outcomes in this innovative and important field, and place Australia at its forefront. The investigator's access to advanced brain imaging and to the unique population of individuals with mirror movements, combined with expertise and experience in neuropsychology and brain imaging, places the research in an internationally competitive position.Read moreRead less