Towards a model of emotional control: Assessment of patients with focal cortical injuries. This project will produce vital information about a potential mechanism that may underlie the observed association between frontal brain damage and deficits in emotional control. The proposed research will therefore have significant clinical and theoretical implications; it will enable better prediction of emotional dysregulation following brain injury, generation of more accurate models of emotional regul ....Towards a model of emotional control: Assessment of patients with focal cortical injuries. This project will produce vital information about a potential mechanism that may underlie the observed association between frontal brain damage and deficits in emotional control. The proposed research will therefore have significant clinical and theoretical implications; it will enable better prediction of emotional dysregulation following brain injury, generation of more accurate models of emotional regulation, as well as informing the provision and delivery of evidence-based treatments for emotional dysregulation. It will also contribute to our understanding of emotional functioning in other disorders characterized by frontal dysfunction, such as schizophrenia, depression and traumatic brain injury.
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
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
Discovery Early Career Researcher Award - Grant ID: DE190100694
Funder
Australian Research Council
Funding Amount
$372,014.00
Summary
Does disconnection in the aging brain cause age-related movement decline? This project aims to use new neurophysiological approaches to understand the causal role of age-related changes in brain network connectivity to the movement control. Brain regions interact through complex and dynamic neural networks to control voluntary movement, but whether age-related changes in network connectivity drive age-related decline in movement control is unknown. This project will provide significant benefits ....Does disconnection in the aging brain cause age-related movement decline? This project aims to use new neurophysiological approaches to understand the causal role of age-related changes in brain network connectivity to the movement control. Brain regions interact through complex and dynamic neural networks to control voluntary movement, but whether age-related changes in network connectivity drive age-related decline in movement control is unknown. This project will provide significant benefits such as the neurophysiological knowledge required to develop targeted interventions to improve movement control in the aging population.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200100575
Funder
Australian Research Council
Funding Amount
$423,604.00
Summary
Does neuroplasticity protect against late life cognitive impairment? This project aims to investigate neuroplasticity across the adult lifespan, using novel neurophysiological approaches to determine its role in protecting against age-related cognitive decline. This project expects to generate new knowledge in the area of human cognitive ageing, using an innovative and interdisciplinary approach. Expected outcomes of this project include a critical understanding of the basic neural mechanisms of ....Does neuroplasticity protect against late life cognitive impairment? This project aims to investigate neuroplasticity across the adult lifespan, using novel neurophysiological approaches to determine its role in protecting against age-related cognitive decline. This project expects to generate new knowledge in the area of human cognitive ageing, using an innovative and interdisciplinary approach. Expected outcomes of this project include a critical understanding of the basic neural mechanisms of healthy brain ageing. This will provide significant benefits, such as the neurophysiological knowledge required to develop novel biological markers to detect, as well as therapeutic agents to curb, cognitive decline in the aging population.Read moreRead less
Understanding working memory: from cells to brain stimulation. This project aims to understand the neural mechanisms of working memory, a fundamental cognitive function in humans, using a novel framework which combines non-invasive brain stimulation, neuroimaging, pharmacological and experimental manipulations, and biological modelling. Expected outcomes include a critical understanding of the cellular mechanisms underlying both neural activity and working memory ability in healthy individuals a ....Understanding working memory: from cells to brain stimulation. This project aims to understand the neural mechanisms of working memory, a fundamental cognitive function in humans, using a novel framework which combines non-invasive brain stimulation, neuroimaging, pharmacological and experimental manipulations, and biological modelling. Expected outcomes include a critical understanding of the cellular mechanisms underlying both neural activity and working memory ability in healthy individuals and a detailed knowledge of how to non-invasively interact with these mechanisms using brain stimulation. This will provide significant benefits such as the development of individually optimised brain stimulation protocols, enabling tailored approaches to reliably alter brain function and cognition.Read moreRead less
Predicting the evolution of psychosocial and cognitive difficulties in epilepsy: A preventive approach. Chronic epilepsy is associated with significant psychosocial and cognitive difficulties. Research has neglected to examine how these problems evolve from the time of a first seizure, limiting our ability to predict ?at risk? patients and apply evidence-based preventive strategies. We will follow a cohort of 90 first seizure patients over two years in a prospective longitudinal investigation, m ....Predicting the evolution of psychosocial and cognitive difficulties in epilepsy: A preventive approach. Chronic epilepsy is associated with significant psychosocial and cognitive difficulties. Research has neglected to examine how these problems evolve from the time of a first seizure, limiting our ability to predict ?at risk? patients and apply evidence-based preventive strategies. We will follow a cohort of 90 first seizure patients over two years in a prospective longitudinal investigation, mapping psychosocial and cognitive change. This study entails a multidisciplinary collaboration with industry, applying innovative psychosocial and cognitive measures that will ultimately improve the detection of adverse pharmaceutical side-effects. The project is an international first, and will provide an important foundation for implementing preventive healthcare.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
Testing the ghost with the machine: Empirical investigations of cognition using high-field functional magnetic resonance imaging. The primary aim of the project is to test hypotheses about the cognitive architecture of word production and negative priming using high-field functional magnetic resonance imaging (fMRI). Additional aims/outcomes are to apply a novel fMRI acquisition sequence that permits overt verbal responding with rapid presentation of trials and collection of the time course of t ....Testing the ghost with the machine: Empirical investigations of cognition using high-field functional magnetic resonance imaging. The primary aim of the project is to test hypotheses about the cognitive architecture of word production and negative priming using high-field functional magnetic resonance imaging (fMRI). Additional aims/outcomes are to apply a novel fMRI acquisition sequence that permits overt verbal responding with rapid presentation of trials and collection of the time course of the blood oxygen level dependent (BOLD) signal, and to further develop a methodology that delineates the logic of making inferences about cognitive systems from functional neuroimaging data. These represent potentially significant developments in the fields of cognitive neuroscience and functional neuroimaging.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101102
Funder
Australian Research Council
Funding Amount
$378,536.00
Summary
Memory Engram Storage and Retrieval. This project aims to probe how long-term memory is stored in the brain. Recently, memory engram-labelling technology has revolutionised the way memory can be experimentally studied. It is now known that sparse populations of neurons that were active during a defined training window are both sufficient and necessary for retrieval of specific memories, and that activation of hippocampal engram causes further downstream activity in connected engram cells of othe ....Memory Engram Storage and Retrieval. This project aims to probe how long-term memory is stored in the brain. Recently, memory engram-labelling technology has revolutionised the way memory can be experimentally studied. It is now known that sparse populations of neurons that were active during a defined training window are both sufficient and necessary for retrieval of specific memories, and that activation of hippocampal engram causes further downstream activity in connected engram cells of other brain regions. However, it is unknown whether engram cell connectivity is important for memory function. The project aims to test this question. Understanding more about memory function in normal conditions may help us to understand and treat disorders of memory.Read moreRead less