Does phonological awareness help children learn to read? An almost universally-accepted view in the field of reading acquisition is that phonological awareness, or the ability to perceive and manipulate speech sounds, causes a child to be good at learning to read. We argue that, despite the voluminous literature on this issue, it has not been conclusively established that such a causal link exists. To do so requires a project, proposed here, in which completely pre-literate children are selec ....Does phonological awareness help children learn to read? An almost universally-accepted view in the field of reading acquisition is that phonological awareness, or the ability to perceive and manipulate speech sounds, causes a child to be good at learning to read. We argue that, despite the voluminous literature on this issue, it has not been conclusively established that such a causal link exists. To do so requires a project, proposed here, in which completely pre-literate children are selected, their phonological awareness measured, and its relationship with subsequent literacy acquisition followed. Settling this issue will have significant consequences for both theory and practice in reading acquisition and dyslexia.Read moreRead less
Determinants of Audio-Visual effects in degraded and non-degraded speech. Seeing a speaker's face can affect the perception of their speech in a number of ways. This project proposes a detailed comparison of factors that affect Audio-Visual (AV) facilitation of degraded speech detection and identification. Detection-based tasks should be more sensitive to signal based correlations whereas identification-based effects more sensitive to complementary information. The significance of the current pr ....Determinants of Audio-Visual effects in degraded and non-degraded speech. Seeing a speaker's face can affect the perception of their speech in a number of ways. This project proposes a detailed comparison of factors that affect Audio-Visual (AV) facilitation of degraded speech detection and identification. Detection-based tasks should be more sensitive to signal based correlations whereas identification-based effects more sensitive to complementary information. The significance of the current proposal is that it offers both a strategy and a connected series of experiments for determining key behavioural constraints on AV speech integration. Understanding AV interactions will build links between neurophysiological processes and coherent perception and have important implications for AV application.Read moreRead less
Developing a Unified Theory of Episodic Memory. This project aims to develop a model of episodic memory and to apply the model to both adult and child development data. Unlike current approaches, the model is expected to address multiple memory tasks including item recognition, associative recognition, source recognition and cued recall, and also aims to address reaction time data, allowing different sources of interference causing forgetting in adults to be identified. By addressing both encodi ....Developing a Unified Theory of Episodic Memory. This project aims to develop a model of episodic memory and to apply the model to both adult and child development data. Unlike current approaches, the model is expected to address multiple memory tasks including item recognition, associative recognition, source recognition and cued recall, and also aims to address reaction time data, allowing different sources of interference causing forgetting in adults to be identified. By addressing both encoding and retrieval processes, the model can assess how changes in different sources of interference modulate performance through the trajectory of early development. Hierarchical Bayesian estimation aims to enable a simultaneous account of multiple tasks and support future deployment in applied contexts.Read moreRead less
Stochastic, Neurally-Plausible Models for Selective Attention and Decision Making. An understanding of the basic cognitive processes involved in attention and decision making is the goal of international research effort in a number of disciplines. The benefits expected from such understanding include improvements in the diagnosis and treatment of a variety of cognitive deficits and improved occupational safety and efficiency in settings involving interaction with complex systems, such air traffi ....Stochastic, Neurally-Plausible Models for Selective Attention and Decision Making. An understanding of the basic cognitive processes involved in attention and decision making is the goal of international research effort in a number of disciplines. The benefits expected from such understanding include improvements in the diagnosis and treatment of a variety of cognitive deficits and improved occupational safety and efficiency in settings involving interaction with complex systems, such air traffic control, airline cockpits, motor vehicles, and process management. By developing mathematical models of these processes and the neural mechanisms that underlie them, this project will contribute to this understanding. It will also provide international postdoctoral opportunties for Australian-trained Ph.D. graduates.Read moreRead less
Understanding the relationship between child maltreatment and language competence: An evidential interviewing perspective. This research aims to develop the first comprehensive and controlled examination of the oral language profiles of maltreated children and how these impact performance in an investigative interview paradigm. This examination is essential for developing strategies for improving the elicitation of evidence from child abuse witnesses. By improving child witness evidence, this re ....Understanding the relationship between child maltreatment and language competence: An evidential interviewing perspective. This research aims to develop the first comprehensive and controlled examination of the oral language profiles of maltreated children and how these impact performance in an investigative interview paradigm. This examination is essential for developing strategies for improving the elicitation of evidence from child abuse witnesses. By improving child witness evidence, this research will improve the prosecution and conviction rates of child abuse offences, which will have a deterrent effect on potential offenders. Finally, this research will reduce the stress of witnesses involved in the legal process and provide better screening of children in need of specialised language intervention.Read moreRead less
An Integrated Theory of Attention and Decision Making. Biologically, the fundamental computational task carried out by the human brain is the translation of perception into action. To perform this translation, attentional processes select relevant stimuli from the environment and decision processes then identify the selected stimuli. This project develops an integrated theory of attention and decision making in simple visual tasks, which will help us understand how these tasks are carried out i ....An Integrated Theory of Attention and Decision Making. Biologically, the fundamental computational task carried out by the human brain is the translation of perception into action. To perform this translation, attentional processes select relevant stimuli from the environment and decision processes then identify the selected stimuli. This project develops an integrated theory of attention and decision making in simple visual tasks, which will help us understand how these tasks are carried out in the brain. Understanding how these tasks are performed biologically will aid in the design of autonomous information-gathering and decision-making agents whose actions simulate human behaviour. Read moreRead less
The Stochastic Dynamics of Visual Attention. This project develops and tests a class of mathematical models of how information is represented statistically in the human visual system and how that representation is modified by selective attention. These models synthesise current theories about how the visual system encodes information and how people make judgements on the basis of that information. The domain of application of the existing class of models will be extended to allow them to predi ....The Stochastic Dynamics of Visual Attention. This project develops and tests a class of mathematical models of how information is represented statistically in the human visual system and how that representation is modified by selective attention. These models synthesise current theories about how the visual system encodes information and how people make judgements on the basis of that information. The domain of application of the existing class of models will be extended to allow them to predict performance in more complex settings than has hitherto been the case. A program of experimental studies will test the models by measuring human performance in response to computer-generated stimuli.
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Remembering that things have changed: A behavioural, pharmacological and biochemical examination of the differences between consolidation and re-consolidation in the day-old chick. This project has five national benefits. 1) It addresses a fundamental scientific and practical problem: to determine whether re-consolidation is actually a repetition of consolidation or in fact a distinct process; 2) it will provide a comprehensive account of how the two processes compare at a biochemical level; 3) ....Remembering that things have changed: A behavioural, pharmacological and biochemical examination of the differences between consolidation and re-consolidation in the day-old chick. This project has five national benefits. 1) It addresses a fundamental scientific and practical problem: to determine whether re-consolidation is actually a repetition of consolidation or in fact a distinct process; 2) it will provide a comprehensive account of how the two processes compare at a biochemical level; 3) it may ultimately provide a pharmacological and behavioural approach to modifying troubling or unwanted memories such as the concerns which may result in post-traumatic stress disorder; 4) it will contribute to Australia's international reputation in behavioural neuroscience and 5) it will provide outstanding training opportunities for Australian undergraduate and postgraduate research students in behavioural neuroscience.Read moreRead less
The Psychology of Misinformation—Towards A Theory-driven Understanding. The project aims to develop a psychological theory of misinformation effects. Misinformation influences people’s memory, reasoning and decision-making even after corrections – it thus poses a significant challenge for science and society. Through the combination of systematic experimentation with theory-driven computational modelling, the project will strive to concurrently consider individual-level cognition and the impact ....The Psychology of Misinformation—Towards A Theory-driven Understanding. The project aims to develop a psychological theory of misinformation effects. Misinformation influences people’s memory, reasoning and decision-making even after corrections – it thus poses a significant challenge for science and society. Through the combination of systematic experimentation with theory-driven computational modelling, the project will strive to concurrently consider individual-level cognition and the impact of sociocultural context. It is anticipated that this novel integrative approach will substantially expand our understanding of misinformation effects, and that this theoretical progress will result in the formulation of specific communication strategies to reduce the impact of misinformation on society.Read moreRead less
A statistical decision theory of cognitive capacity. This project aims to investigate the limited capacity of the human cognitive system to form representations of the things in the world around us and to make decisions about them in real time. Its goal is to provide an integrated theory of cognitive capacity based on the statistical properties of cognitive representations and the decision processes that act on them. Its expected outcome will be a unified metric for cognitive capacity that will ....A statistical decision theory of cognitive capacity. This project aims to investigate the limited capacity of the human cognitive system to form representations of the things in the world around us and to make decisions about them in real time. Its goal is to provide an integrated theory of cognitive capacity based on the statistical properties of cognitive representations and the decision processes that act on them. Its expected outcome will be a unified metric for cognitive capacity that will allow us to quantify how cognitive load affects the speed and accuracy of decision making. It will benefit the design and evaluation of high workload real-time decision systems and will contribute to the selection and training of users of such systems.
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