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Discovery Early Career Researcher Award - Grant ID: DE130100463
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Back to the future - dissociating mental simulation processes in the brain. Remembering the past and imagining the future are two linked processes that rely on a core brain network. The project will examine how damage to different parts of this brain network affects mental simulation of the past and future, providing fundamental information regarding the role of brain structures and systems for complex thought processes.
How the brain produces speech: Neuronal oscillations to neuromodulation. Speech is crucial for facilitating human communication through language, yet there is a lack of clarity about where, when and what type of activity occurs in the brain during key stages of production. This project will use intracranial recordings to characterise neuronal oscillations in combination with direct electrical stimulation, functional neuroimaging and non-invasive brain stimulation to establish critical areas and ....How the brain produces speech: Neuronal oscillations to neuromodulation. Speech is crucial for facilitating human communication through language, yet there is a lack of clarity about where, when and what type of activity occurs in the brain during key stages of production. This project will use intracranial recordings to characterise neuronal oscillations in combination with direct electrical stimulation, functional neuroimaging and non-invasive brain stimulation to establish critical areas and their timecourses with millisecond resolution. The outcome will be a better theoretical account of the brain mechanisms involved in spoken production. The benefit of this new theoretical account will be a better basis for prevention of post-surgical language impairment and neuromodulatory treatments after brain injury.Read moreRead less
A more sound approach to the neurobiology of language. How does the brain attain spoken language? Current neurobiological models assume either implicitly or explicitly that there is no relationship between a word's sound and its meaning. Yet considerable evidence shows this strong assumption about the arbitrariness of language is invalid. This project will use a combination of behavioural, neuroimaging and computational studies to characterise how the brain processes statistical regularities in ....A more sound approach to the neurobiology of language. How does the brain attain spoken language? Current neurobiological models assume either implicitly or explicitly that there is no relationship between a word's sound and its meaning. Yet considerable evidence shows this strong assumption about the arbitrariness of language is invalid. This project will use a combination of behavioural, neuroimaging and computational studies to characterise how the brain processes statistical regularities in sound-to-meaning correspondences as probabilistic cues to attain spoken language. The outcome will be a better neural account of language comprehension and production. The benefit of this new account will be a stronger basis for assessment and treatment of developmental and acquired language impairments.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100055
Funder
Australian Research Council
Funding Amount
$400,000.00
Summary
State-of-the-art upgrade to multi-transmit multi-receive technology for research dedicated 3 Tesla magnetic resonance imaging (MRI) scanner. Projects requiring the proposed infrastructure are aligned with two National Research Priorities. The research will lead to new methods for imaging and detecting soft tissue changes, identifying developmental, cognitive and degenerative disorders, and pharmacological research. The understanding of the basis of physiological, cognitive and biochemical proces ....State-of-the-art upgrade to multi-transmit multi-receive technology for research dedicated 3 Tesla magnetic resonance imaging (MRI) scanner. Projects requiring the proposed infrastructure are aligned with two National Research Priorities. The research will lead to new methods for imaging and detecting soft tissue changes, identifying developmental, cognitive and degenerative disorders, and pharmacological research. The understanding of the basis of physiological, cognitive and biochemical processes which will be facilitated by the new equipment will contribute to the priority area Promoting and Maintaining Good Health and will underpin an array of subsequent medical research. The new equipment will extend capabilities and training in signal analysis, biomedical engineering and biomedicine, contributing to the priority area Frontier technologies for Building and Transforming Australian Industries.Read moreRead less
Modelling and manipulating brain network dynamics across the lifespan. This project aims to integrate advanced computational modelling and state-of-the-art recording techniques to generate new knowledge on the neural basis of ageing. People are said to grow wiser as they grow older, though more likely they will experience cognitive slowing and reduced memory functions that interfere with their daily lives. The anticipated goal of the project is to develop techniques to predict the personalised e ....Modelling and manipulating brain network dynamics across the lifespan. This project aims to integrate advanced computational modelling and state-of-the-art recording techniques to generate new knowledge on the neural basis of ageing. People are said to grow wiser as they grow older, though more likely they will experience cognitive slowing and reduced memory functions that interfere with their daily lives. The anticipated goal of the project is to develop techniques to predict the personalised effects of brain stimulation on the ageing brain. The outcomes of this research could significantly improve understanding of brain ageing, and advance the fields of systems neuroscience, network science, and brain stimulation.Read moreRead less
Cannabis and the brain: the good, the bad and the unknown. Cannabis is the most widely used illicit drug but much remains unknown about how it affects the brain. This research will examine effects on brain cells through to whole brain function in humans to determine how cannabis use may lead to impaired thinking or psychological symptoms and why cannabis might affect individuals in different ways.
Understanding biological pathways underlying social behaviour in humans. This project aims to show for the first time how oxytocin interacts with neural social and reward pathways to guide social behaviour. Oxytocin is a natural neuropeptide and hormone that has a critical role in the regulation of social behaviour across mammalian species. In animals, direct evidence demonstrates how endogenous and exogenous oxytocin interacts with social and reward neural pathways to alter social behaviour, in ....Understanding biological pathways underlying social behaviour in humans. This project aims to show for the first time how oxytocin interacts with neural social and reward pathways to guide social behaviour. Oxytocin is a natural neuropeptide and hormone that has a critical role in the regulation of social behaviour across mammalian species. In animals, direct evidence demonstrates how endogenous and exogenous oxytocin interacts with social and reward neural pathways to alter social behaviour, including social recognition, relationship formation, and long-term bonds. The project intends to use radio-labelling techniques in combination with positron emission tomography to track oxytocin and show what regions of the brain oxytocin impacts to then influence social cognition and behaviour in humans.Read moreRead less
Fundamental neurocognitive mechanisms underpinning creative thought. The project aims to understand the neural and cognitive bases of creative thought by using a novel approach and recent framework that has emerged from the study of semantic cognition and executive control functions. Creative thought is fundamental to human advances throughout history and it is the foundation to all arts and sciences. Expected outcomes are a framework that can explain the source of knowledge and the evaluative ....Fundamental neurocognitive mechanisms underpinning creative thought. The project aims to understand the neural and cognitive bases of creative thought by using a novel approach and recent framework that has emerged from the study of semantic cognition and executive control functions. Creative thought is fundamental to human advances throughout history and it is the foundation to all arts and sciences. Expected outcomes are a framework that can explain the source of knowledge and the evaluative mechanisms needed to generate new and useful ideas. Significant benefits will be to advance our understanding of the neurocognitive mechanisms of creative thought, which can enhance Australia’s scientific capability through training and collaboration and broader society by enhancing capacity for innovative thinking. Read moreRead less
What is the functional significance of mirror neurons? Contrasting the adaptation and association models of the mirror neuron system. Mirror neurons are a type of brain cell that are thought to underlie empathy and cause autism. Alternatively, however, mirror neurons might instead arise from repeated associations between what we see and what we do. This study uses brain stimulation and neuroimaging techniques to determine the function of mirror neurons.
Neural network underlying memory erasure. Memory expression can easily be reduced through the process of extinction, which involves repeated presentations of cues involved in that memory but without any outcome. In adult animals (including humans), it is widely accepted that extinction leads to a temporary inhibition of the original memory that remains largely unaltered. Remarkably, extinction causes erasure in juvenile rodents so that the original memory is permanently reduced. This is because ....Neural network underlying memory erasure. Memory expression can easily be reduced through the process of extinction, which involves repeated presentations of cues involved in that memory but without any outcome. In adult animals (including humans), it is widely accepted that extinction leads to a temporary inhibition of the original memory that remains largely unaltered. Remarkably, extinction causes erasure in juvenile rodents so that the original memory is permanently reduced. This is because the normal maturational changes in the brain result in fundamental developmental differences in the neural network underlying extinction. This project aims to map out this network across life, and also to reproduce the juvenile network in adult rats to erase memories via extinction in adulthood.Read moreRead less