Light, Sound And Touch Influence The Autonomic Nervous System Via A Non-canonical Pathway
Funder
National Health and Medical Research Council
Funding Amount
$329,666.00
Summary
We examine a recently discovered brain circuit through which visual and acoustic stimuli can interact with the neural systems that control breathing, blood pressure and heart rate. The outcomes of this project will characterise a pathway by which the external environment can interrupt the normal activity of systems vital for health and wellbeing independent of cognition.
Investigations Of Mechanisms Underlying Autonomic Cardiovascular Regulation In Medial Temporal Lobe Epilepsy.
Funder
National Health and Medical Research Council
Funding Amount
$311,860.00
Summary
People with epilepsy often show disturbed cardiovascular function which may increase mortality risk. This may reflect seizure related disturbances in the autonomic circuitry regulation of the cardiovascular system. We apply advanced brain imaging analysis of altered neural structure, circuit connectivity and function within medial temporal lobe and mid brain, combined with clinical assessment of autonomic function to provide important new insights into cardiac disturbances in epilepsy.
Investigations Of Neural Pathways For Heat Loss And Heat Gain In Thermoregulation And Fever
Funder
National Health and Medical Research Council
Funding Amount
$349,486.00
Summary
This project aims to map the nerve pathways in the brain that participate in the regulation of body temperature in the laboratory rat. The area of the brain that will be studied is the hypothalamic region. We will determine how this region influences the constriction of blood vessels in the skin to reduce heat loss when an animal is exposed to a cool environment, or when it exhibits a fever in response to a bacterial infection. As well, we will compare the nervous pathway that controls the gener ....This project aims to map the nerve pathways in the brain that participate in the regulation of body temperature in the laboratory rat. The area of the brain that will be studied is the hypothalamic region. We will determine how this region influences the constriction of blood vessels in the skin to reduce heat loss when an animal is exposed to a cool environment, or when it exhibits a fever in response to a bacterial infection. As well, we will compare the nervous pathway that controls the generation of heat from fat tissue in response to cold or fever with those controlling blood flow to the skin. These nervous pathways may be critical for maintaining correct body temperature during general anaesthesia, infections or in the aged subjected to temperature extremes. Thus, they are of importance in the health and well-being of much of the population.Read moreRead less
Reduction Of The Cardiovascular Response Of Psychological Stress Through Blockade Of Orexin’s Action On One Of Its Receptors.
Funder
National Health and Medical Research Council
Funding Amount
$394,925.00
Summary
Anxiety, fear of challenges, frustration are part of modern life stressors. Our body reacts to these stressors by increasing blood pressure and heart rate, which in turn can harm our cardiovascular system and precipitate cardiovascular accidents. In this project we test a new class of drugs that act on a neurochemical system implicated in these particular responses. If our hypothesis is correct, one of these drugs could be used to relax the cardiovascular system and protect it in times of stress ....Anxiety, fear of challenges, frustration are part of modern life stressors. Our body reacts to these stressors by increasing blood pressure and heart rate, which in turn can harm our cardiovascular system and precipitate cardiovascular accidents. In this project we test a new class of drugs that act on a neurochemical system implicated in these particular responses. If our hypothesis is correct, one of these drugs could be used to relax the cardiovascular system and protect it in times of stress.Read moreRead less
Control Of Sympathetic Nerves That Talk To The Immune System
Funder
National Health and Medical Research Council
Funding Amount
$385,958.00
Summary
The two complex systems of the body, the immune system and the nervous system, communicate with each other. This proposal studies one of the major pathways from brain to immune system - sympathetic immuno-efferent nerves. In stroke, these pathways cause profound immunosuppression, causing susceptibility to infection. Their poorly understood central and peripheral pathways will be defined and mapped by this study.