The roles of spectral cues and auditory plasticity in auditory localisation, speech segregation and speech intelligibility. Our recent work shows that high frequency energy in speech is important for the localisation of speech and may also aid in improving speech intelligibility in noisy environments. The work proposed here will systematically explore this somewhat surprising new finding and the results will be incorporated into a predictive model of speech intelligibility under spatial listenin ....The roles of spectral cues and auditory plasticity in auditory localisation, speech segregation and speech intelligibility. Our recent work shows that high frequency energy in speech is important for the localisation of speech and may also aid in improving speech intelligibility in noisy environments. The work proposed here will systematically explore this somewhat surprising new finding and the results will be incorporated into a predictive model of speech intelligibility under spatial listening conditions. This work includes a systematic study of auditory functional plasticity to changes in the spatial cues. Taken together, the outcomes of this work will unlock a range of new approaches to enhancing spatial hearing in multi-channel communication devices and spatial hearing aids.Read moreRead less
Resolving multi-sensory conflict as we age: audio-visual integration and the role of normal and abnormal sensory decline. Australia has an ageing population. Even the healthiest older individuals undergo some deterioration of vision and hearing, however, these senses are almost invariably studied in isolation. The real world is multisensory. This project will enhance our knowledge of how ageing impacts on the interpretation of visual and auditory information regarding the timing and location of ....Resolving multi-sensory conflict as we age: audio-visual integration and the role of normal and abnormal sensory decline. Australia has an ageing population. Even the healthiest older individuals undergo some deterioration of vision and hearing, however, these senses are almost invariably studied in isolation. The real world is multisensory. This project will enhance our knowledge of how ageing impacts on the interpretation of visual and auditory information regarding the timing and location of objects; essential precursors to many real world tasks, for example: driving, interpreting speech, and hazard avoidance. This knowledge is essential for the optimisation of audio-visual environments for the elderly, and for the development of tools to improve performance in the presence of sensory decline due to age-related eye disease.Read moreRead less
The brain in real time: a neural model of rhythmic action and perception. This project aims to study a fundamental function of the human brain: its temporal architecture. It will provide an innovative perspective on the neural mechanisms underlying and relating perception, intention, and voluntary action in real time, though a combination of eye-tracking, behaviour, and neural recordings. By providing a common language with which to relate perception, cognition, volition and action, this will ....The brain in real time: a neural model of rhythmic action and perception. This project aims to study a fundamental function of the human brain: its temporal architecture. It will provide an innovative perspective on the neural mechanisms underlying and relating perception, intention, and voluntary action in real time, though a combination of eye-tracking, behaviour, and neural recordings. By providing a common language with which to relate perception, cognition, volition and action, this will provide significant benefits that will transform the way we think about brain function.Read moreRead less
Natural form, aesthetics and the human brain. This project aims to study how the brain represents the emotion of aesthetic experience. This project will establish the characteristics of flowers and floral design that govern their appeal using large scale web based data collection, and identify the neural representation of floral beauty using integrative data analysis. Outcomes of the project are expected to help flower growers and designers with product planning, supporting industry sustainabili ....Natural form, aesthetics and the human brain. This project aims to study how the brain represents the emotion of aesthetic experience. This project will establish the characteristics of flowers and floral design that govern their appeal using large scale web based data collection, and identify the neural representation of floral beauty using integrative data analysis. Outcomes of the project are expected to help flower growers and designers with product planning, supporting industry sustainability. The project will also establish how the brain generates positive experience in response to our visual environment, promoting well-being by enabling informed visual design decisions.Read moreRead less
Organization and Plasticity of Visual Processing in a Miniature Brain. To recognise objects a brain must have an internal representation of most likely object appearance. Two ways in which brains may posses this information include a hard wired template system, and/or the neuroplasticity to learn novel objects. Recent investigations on honeybee vision show that this animal can learn to recognise very difficult objects, although currently we do not know how the miniaturised bee brain manages thes ....Organization and Plasticity of Visual Processing in a Miniature Brain. To recognise objects a brain must have an internal representation of most likely object appearance. Two ways in which brains may posses this information include a hard wired template system, and/or the neuroplasticity to learn novel objects. Recent investigations on honeybee vision show that this animal can learn to recognise very difficult objects, although currently we do not know how the miniaturised bee brain manages these tasks. This project will reveal changes that occur in the processing of visual objects by the bee's brain with increasing experience, with potential applications including robotics or building interfaces between sensors and biological systems.Read moreRead less
Mobile computation in human perception and feature binding. Perception is so complex that still we cannot give computers more than a fraction of the human ability to perceive things. Experiments with humans can unravel the computations that underlie human abilities. Here we focus on distinguishing between perceptual mechanisms that analyze information from only patches of the visual world and those that combine information from across the visual field as an object moves across it. Results should ....Mobile computation in human perception and feature binding. Perception is so complex that still we cannot give computers more than a fraction of the human ability to perceive things. Experiments with humans can unravel the computations that underlie human abilities. Here we focus on distinguishing between perceptual mechanisms that analyze information from only patches of the visual world and those that combine information from across the visual field as an object moves across it. Results should also help to understand the general issue of how the brain combines information from different groups of neurons. Australian understanding of brains should be advanced, benefiting neuroscience, medicine, and eventually computer science.Read moreRead less
Adaptation and after effects in perception of tactile motion. This project investigates sensory properties of the skin covering the human hand, focusing on the ability to perceive how surfaces move across the palm when objects are handled or explored. This project aims to elucidate sensory information processing, leading to applications in diagnostics of neurological disorders and robotics.
Phenotypic differences in behaviour, brain function and structure of genetically dissimilar forms of intellectual disability. How is the brain of someone with intellectual disability different from that of a normal person? Are behavioural phenotypes such as intellectual disability more related to similarities in brain structure and function than to the genotypic anomaly? This project will use neuroscience techniques of psychophysics, electrophysiology and fMRI to probe these questions. The ben ....Phenotypic differences in behaviour, brain function and structure of genetically dissimilar forms of intellectual disability. How is the brain of someone with intellectual disability different from that of a normal person? Are behavioural phenotypes such as intellectual disability more related to similarities in brain structure and function than to the genotypic anomaly? This project will use neuroscience techniques of psychophysics, electrophysiology and fMRI to probe these questions. The benefit of this project is that cortical flattening fMRI techniques together with new and efficient stimulus paradigms will result in a functional landmark mapping tool capable of application to many other brain genotype-phenotype questions. Also, the functional brain basis of intellectual disability will be further revealed.Read moreRead less
Parallel and generative binding in human visual cortex. Imagine watching a group of children running around in brightly coloured T-shirts. How does your brain keep track of which colour goes with which T-shirt goes with which child? This project will use magnetic resonance imaging to identify where in our brains information about colour, shape and motion gets put together.
Predicting Behaviour from Brain Representations. This project aims to advance our understanding of how perceptual information is represented in the human brain and to link the structure of perceptual brain representations to human behaviour. The project plans to use complementary methods for recording brain activity (human neuroimaging and primate single-cell neurophysiology) and cutting-edge analytic techniques to generate a predictive model of behaviour based on the structure of perceptual bra ....Predicting Behaviour from Brain Representations. This project aims to advance our understanding of how perceptual information is represented in the human brain and to link the structure of perceptual brain representations to human behaviour. The project plans to use complementary methods for recording brain activity (human neuroimaging and primate single-cell neurophysiology) and cutting-edge analytic techniques to generate a predictive model of behaviour based on the structure of perceptual brain representations. It is anticipated that the results will significantly advance the field of cognitive neuroscience by providing a novel empirical framework for understanding how brain representations are predictive of behaviour.Read moreRead less