Are neurobehavioural and neuromotor impairments associated with FMR1 gene expansion? The gene that causes Fragile X syndrome is found at the end of the X chromosome and is present in all humans. In many cases there is a small to medium change in this gene that may cause psychological and motor difficulties in later adulthood. The core aim of this project is to identify early age-related changes that would indicate later neurological decline.
Linking arterial, brain and cognitive integrity in healthy older adults. This project aims to demonstrate that engaging the brain’s prefrontal cortex, an area that is highly sensitive to ageing, can improve the function of arteries that supply blood to this brain region. Using an innovative optical imaging methodology that maps the brain’s regional arterial health, it aims to generate new knowledge about the link between this arterial system and the progressive decline in cognitive control abili ....Linking arterial, brain and cognitive integrity in healthy older adults. This project aims to demonstrate that engaging the brain’s prefrontal cortex, an area that is highly sensitive to ageing, can improve the function of arteries that supply blood to this brain region. Using an innovative optical imaging methodology that maps the brain’s regional arterial health, it aims to generate new knowledge about the link between this arterial system and the progressive decline in cognitive control ability and in prefrontal cortex structure and function in healthy older adults. This interdisciplinary, international collaboration aims to put Australia at the forefront of brain optical imaging methods that may have significant benefits by informing approaches to promote and maintain healthy brain and cognition in old age.Read moreRead less
Killing which averts suffering: the role of norms and empathy. Abattoir workers and butchers kill animals to prepare food, farmers to cull stock, and veterinarians to alleviate suffering. Soldiers kill other humans in war, police or security guards to protect the public, and doctors to enact legal euthanasia. Research shows that these tasks can be confronting, and even traumatic. This project aims to test the processes through which people learn socially supported palliative killing to avert suf ....Killing which averts suffering: the role of norms and empathy. Abattoir workers and butchers kill animals to prepare food, farmers to cull stock, and veterinarians to alleviate suffering. Soldiers kill other humans in war, police or security guards to protect the public, and doctors to enact legal euthanasia. Research shows that these tasks can be confronting, and even traumatic. This project aims to test the processes through which people learn socially supported palliative killing to avert suffering and their neural underpinnings, with a focus on norms and empathic distress. It will focus on two core samples: veterinarians, who must euthanize animals, and health practitioners in Victoria, where legal changes will introduce ‘voluntary assisted dying’ in mid-2019. It will investigate how practitioners learn palliative killing, and what the impact is on psychological variables such as empathy and identity. It will generate new understandings of social influence around life and death decisions, provide an evidence basis to inform policy makers, and help institutions and practitioners seeking to manage distress and respond to fast-moving, controversial policy changes.Read moreRead less
Modelling trajectories of cognitive control in adolescents and young adults. This project aims to develop an innovative framework that models behaviour, brain function and brain structure to characterise developmental trajectories of cognitive control in typically-developing young people, and to test the model’s ability to predict psychosocial outcomes. Cognitive control processes are supported by complex frontal brain networks that develop well into adulthood. Poor cognitive control is linked t ....Modelling trajectories of cognitive control in adolescents and young adults. This project aims to develop an innovative framework that models behaviour, brain function and brain structure to characterise developmental trajectories of cognitive control in typically-developing young people, and to test the model’s ability to predict psychosocial outcomes. Cognitive control processes are supported by complex frontal brain networks that develop well into adulthood. Poor cognitive control is linked to negative psychosocial outcomes (e.g. substance use, high-risk behaviours). This work is expected to inform evidence-based programmes that identify young people at risk and develop targeted training strategies to improve psychosocial outcomes.Read moreRead less
Assessment of circadian and light interactions in adolescent sleepiness. This project aims to examine the relative contributions of multiple biological clock and sleep factors that may be linked to cognitive function and sleepiness in adolescents. Over 70 per cent of adolescents in Australia experience insufficient sleep. Cross-sectional studies have shown that insufficient sleep and mistimed sleep lead to reduced cognitive function. The project intends to identify specific sleep and circadian m ....Assessment of circadian and light interactions in adolescent sleepiness. This project aims to examine the relative contributions of multiple biological clock and sleep factors that may be linked to cognitive function and sleepiness in adolescents. Over 70 per cent of adolescents in Australia experience insufficient sleep. Cross-sectional studies have shown that insufficient sleep and mistimed sleep lead to reduced cognitive function. The project intends to identify specific sleep and circadian markers that are linked to academic performance, and generate innovative algorithms that predict these associations. The project will provide new knowledge to drive prevention and early intervention programs that use sleep-wake and light exposure information to improve sleep quality.Read moreRead less
Dissecting the Brain Circuitry Shaping Fear Regulation Across Development. Adolescence is an important time when individuals learn to manage stress-related emotions like fear. This project aims to understand how maturational changes in the prefrontal cortex of the brain hinder adolescents when learning to reduce reactivity to threats. It aims to do so by dissecting the brain circuitry shaping learning, memory, and emotional regulation across pre-adolescence, adolescence, and adulthood. The proje ....Dissecting the Brain Circuitry Shaping Fear Regulation Across Development. Adolescence is an important time when individuals learn to manage stress-related emotions like fear. This project aims to understand how maturational changes in the prefrontal cortex of the brain hinder adolescents when learning to reduce reactivity to threats. It aims to do so by dissecting the brain circuitry shaping learning, memory, and emotional regulation across pre-adolescence, adolescence, and adulthood. The project expects to generate new knowledge about why developmental changes in the brain are necessary for mature forms of learning and memory. The expected outcomes of this project include a significantly richer knowledge of the developing brain, which will ultimately inform approaches for improving emotion regulation in youth.Read moreRead less
A comprehensive framework for modelling the human connectome. The human brain is an extraordinarily complex network of interconnected cells. This project aims to use mathematical modelling and brain imaging to uncover key principles of network wiring in the human brain. Using an interdisciplinary approach that combines elements of neuroscience, genetics, physics, and psychology, the project will result in a new, rigorous framework for testing competing theories of brain development, the identifi ....A comprehensive framework for modelling the human connectome. The human brain is an extraordinarily complex network of interconnected cells. This project aims to use mathematical modelling and brain imaging to uncover key principles of network wiring in the human brain. Using an interdisciplinary approach that combines elements of neuroscience, genetics, physics, and psychology, the project will result in a new, rigorous framework for testing competing theories of brain development, the identification of key wiring principles for developing brains, and an understanding of how these principles shape behaviour. This work will shed new light on the developmental processes that underlie human behaviour and disease.Read moreRead less
Establishing how head and face movement properties contribute to the perception of speech and identity. The proposed studies provide an extensive research program into audio-visual speech processing and person identification: key components of face-to-face communication. The likely impact and benefits of the project concern its contribution to perceptual theory (linking signal, brain and behaviour) and its practical implications: For determining the viability of multimodal biometric identificati ....Establishing how head and face movement properties contribute to the perception of speech and identity. The proposed studies provide an extensive research program into audio-visual speech processing and person identification: key components of face-to-face communication. The likely impact and benefits of the project concern its contribution to perceptual theory (linking signal, brain and behaviour) and its practical implications: For determining the viability of multimodal biometric identification procedures by assessing the distinctiveness and permanence of AV speech characteristics. In the development of a visual dubbing technique that has potential for communication in noisy environments (and for the deaf) and for the development of a morphable model for AV presentation that has application for both first and second language learning.Read moreRead less
Investigating the role of Zona Incerta RXFP3+ cells in learning and memory. Learning and memory are fundamental to human and animal behaviour. We identified a specific population of cells in the zona incerta of the brain, where activation inhibits expression of memory, and facilitates the acquisition of new learning. Aside from our observations, nothing is currently known about the anatomy and function of these cells. This project aims to map how they connect to the rest of the brain, to observe ....Investigating the role of Zona Incerta RXFP3+ cells in learning and memory. Learning and memory are fundamental to human and animal behaviour. We identified a specific population of cells in the zona incerta of the brain, where activation inhibits expression of memory, and facilitates the acquisition of new learning. Aside from our observations, nothing is currently known about the anatomy and function of these cells. This project aims to map how they connect to the rest of the brain, to observe how these connections are recruited during learning and memory, and then to test their function experimentally. The outcomes will extend the known neural circuitry that controls learning by defining how and where these unexplored pathways fit within it; thus advancing knowledge regarding neural regulation of behaviour.
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Reproductive plasticity and climate change: insights from an opportunistic breeder. Across the globe, birds are struggling to optimise their reproductive timing and investment in a changing and unpredictable climate. This project will use the highly adaptable and opportunistic Australian zebra finch to develop an understanding of how birds tailor their behaviour and physiology to breed across a range of conditions.