Discovery Early Career Researcher Award - Grant ID: DE180100893
Funder
Australian Research Council
Funding Amount
$366,403.00
Summary
No pain no word gain: toward a new neurobiological account of word learning. This project aims to generate a novel neurobiological account of word learning, going beyond a simple mapping between words and objects and recognising the sensory and socio-communicative embedding of language. Capitalising on interdisciplinary approaches to research, this project will use state-of-the-art neuroimaging to reveal the neural architecture and mechanisms supporting contextualised sensory word learning. The ....No pain no word gain: toward a new neurobiological account of word learning. This project aims to generate a novel neurobiological account of word learning, going beyond a simple mapping between words and objects and recognising the sensory and socio-communicative embedding of language. Capitalising on interdisciplinary approaches to research, this project will use state-of-the-art neuroimaging to reveal the neural architecture and mechanisms supporting contextualised sensory word learning. The results are expected to bring about a paradigm shift in the fields of neurobiology of language and learning, having a profound impact on the practice of language teaching and improvement of language functioning.Read moreRead less
The Role of Colour and Luminance in Spatial Location. How does the brain form our impression of the world? Black and white images appear normal to us. However, colour images without luminance variation have little depth, suggesting that the brain does not process colour in the same way as luminance. A series of fresh experiments examine how colour and luminance are utilised for seeing the depth and position of objects. The results will help us to understand how the first stages of visual process ....The Role of Colour and Luminance in Spatial Location. How does the brain form our impression of the world? Black and white images appear normal to us. However, colour images without luminance variation have little depth, suggesting that the brain does not process colour in the same way as luminance. A series of fresh experiments examine how colour and luminance are utilised for seeing the depth and position of objects. The results will help us to understand how the first stages of visual processing in the brain shape our sense of the world, and help develop theories of human vision, as well as animal and machine models of vision.Read moreRead less
Mechanisms underlying the perception of surface slant. How our brain encodes sensory information is of fundamental importance in neuroscience. Visual after-effects (how looking at various stimuli can affect the perception of subsequently presented stimuli) have provided valuable information about mechanisms of perceptual coding. We will use an adaptation paradigm to examine two-dimensional and three-dimensional after-effects, and their dependence on common mechanisms. Stimulus manipulations will ....Mechanisms underlying the perception of surface slant. How our brain encodes sensory information is of fundamental importance in neuroscience. Visual after-effects (how looking at various stimuli can affect the perception of subsequently presented stimuli) have provided valuable information about mechanisms of perceptual coding. We will use an adaptation paradigm to examine two-dimensional and three-dimensional after-effects, and their dependence on common mechanisms. Stimulus manipulations will allow us to probe the steps involved in recovering three-dimensional slant, and recording the full time-course of the after-effect will allow us to gauge the plasticity of these mechanisms. These effects will be modelled in terms of the response properties of cortical neurons.Read moreRead less
A theory of attention and decision-making in multi-attribute and multi-object perceptual judgements. The human brain is an efficient biological computation device for rapidly translating perception into action. This project will develop and test a mathematical model of the processes of visual selective attention and perceptual decision-making. These processes are at the heart of the brain's ability to carry out this translation in a fast and accurate way.
Perception: From Genes to Behaviour. Understanding how genes affect behaviour is inherently difficult because the human brain is extraordinarily complex. This project aims to map fundamental relationships between genes, brain, and behaviour by studying visual perception, where brain mechanisms can be characterised with high fidelity. The project expects to generate new knowledge in behavioural genetics using innovative, interdisciplinary approaches to integrate precise genetic, neural and psycho ....Perception: From Genes to Behaviour. Understanding how genes affect behaviour is inherently difficult because the human brain is extraordinarily complex. This project aims to map fundamental relationships between genes, brain, and behaviour by studying visual perception, where brain mechanisms can be characterised with high fidelity. The project expects to generate new knowledge in behavioural genetics using innovative, interdisciplinary approaches to integrate precise genetic, neural and psychophysical measurements. Expected outcomes of this project include a deeper understanding of our perceptual experience, and rich new experimental paradigms. This should provide significant benefits for future research attempting to disentangle complex gene–behaviour relationships.Read moreRead less
Feature processing in categorisation: modelling the time course of perceptual decision making. How do we perceive stable unified objects with a brain comprised of specialised neurons located in different regions? This project will test a model of perceptual categorisation to link feature processing in categorisation with other perceptual tasks like visual search and explain the time course of information processing in both.
Discovery Early Career Researcher Award - Grant ID: DE160100125
Funder
Australian Research Council
Funding Amount
$385,536.00
Summary
Human visual perception: Connecting genes, brain and behaviour. This project aims to reveal the relationship between genes, brain and behaviour in visual perception, where underlying brain activity can be decoded from electrical signals. Modern molecular genetics promises unprecedented insights into human psychology. But progress has been slower than expected because the brain mechanisms linking genes to behaviours are incredibly complex. Project results are expected to show how common variation ....Human visual perception: Connecting genes, brain and behaviour. This project aims to reveal the relationship between genes, brain and behaviour in visual perception, where underlying brain activity can be decoded from electrical signals. Modern molecular genetics promises unprecedented insights into human psychology. But progress has been slower than expected because the brain mechanisms linking genes to behaviours are incredibly complex. Project results are expected to show how common variations in genes affect our brain's response to visual stimulation, and how this in turn alters our perceptual experience and behavioural reactions. These discoveries aim to cast new light on the architecture and development of the mind, and provide a new model for investigating the genetic basis of other psychological traits.Read moreRead less
Decision Processes in Visual Working Memory. This project aims to investigate a new theory of rapid human decision making and memory processes in contexts of a continuous choice set. Many real-world, action-oriented decisions, such as those made while driving, walking, or cycling, require the decision maker to choose from a continuous set of alternatives and decisions are often based on memories of past events. This project will use human experimentation and computational modelling methods to i ....Decision Processes in Visual Working Memory. This project aims to investigate a new theory of rapid human decision making and memory processes in contexts of a continuous choice set. Many real-world, action-oriented decisions, such as those made while driving, walking, or cycling, require the decision maker to choose from a continuous set of alternatives and decisions are often based on memories of past events. This project will use human experimentation and computational modelling methods to increase our understanding of the processes involved in an important class of memory-based decision tasks. The expected outcomes will provide an improved understanding of cognitive computation, which may aid in the future development of associated technologies.Read moreRead less
The capacity limitations of visual attention. Processes of attention allow the brain to select relevant stimuli from the environment and protect its limited information-processing capacity from overload. This project will develop and test a neurally-plausible, computational model of attentional selection and capacity limitations. The model describes how performance in simple cognitive tasks is determined by selection competition, the information and item capacity of visual short-term memory, and ....The capacity limitations of visual attention. Processes of attention allow the brain to select relevant stimuli from the environment and protect its limited information-processing capacity from overload. This project will develop and test a neurally-plausible, computational model of attentional selection and capacity limitations. The model describes how performance in simple cognitive tasks is determined by selection competition, the information and item capacity of visual short-term memory, and decision noise. It provides an account of how the effects of these various kinds of capacity limitation vary with strategy or task set, and provides a metric for the information capacity of visual short-term memory based on the additivity of signal-to-noise ratios.Read moreRead less
The effect of cochlear implants on cognitive decline in ageing Australians. This project aims to investigate the impact of cochlear implants on cognitive function in elderly people with deafness. Deafness has been found to be independently associated with a 30–40 per cent accelerated rate of cognitive decline in elderly adults. There is currently no effective treatment for cognitive decline. The intended outcomes of this observational study will help us to understand the biological process of co ....The effect of cochlear implants on cognitive decline in ageing Australians. This project aims to investigate the impact of cochlear implants on cognitive function in elderly people with deafness. Deafness has been found to be independently associated with a 30–40 per cent accelerated rate of cognitive decline in elderly adults. There is currently no effective treatment for cognitive decline. The intended outcomes of this observational study will help us to understand the biological process of cognitive decline, whether hearing loss is causal, and whether the process can be altered. These findings should be applicable to all individuals with hearing loss. If cochlear implants delay cognitive decline, this would significantly affect policy, quality of life for the elderly, and the cost to society.Read moreRead less