Biased information processing in anxiety: Low anxiety scores, but still at risk. Information processing in anxious persons is biased if confronted with threatening stimulus materials such as words or pictures. This finding has considerable implications for our understanding of fear acquisition and maintenance and for the design of therapeutic interventions. More recent research has shown, however, that low anxious persons who employ repressive coping styles show similar biases. The present proj ....Biased information processing in anxiety: Low anxiety scores, but still at risk. Information processing in anxious persons is biased if confronted with threatening stimulus materials such as words or pictures. This finding has considerable implications for our understanding of fear acquisition and maintenance and for the design of therapeutic interventions. More recent research has shown, however, that low anxious persons who employ repressive coping styles show similar biases. The present project will follow up on these findings by combining the expertises of the two CIs in contemporary cognitive and psychophysiological research. It will not only provide new insights, but also offer research opportunities for postgraduate students, and prospects for future collaborative funding.Read moreRead less
How, What and Who in Human Communication: Movement of Face and Voice. The aim of this project is to identify the essential characteristics of tone, affect, and identity from face and voice using a combination of signal processing, biological, and behavioural techniques in order to develop a comprehensive model of auditory-visual speech processing and communication. This research will significantly improve understanding of the basis of auditory-visual perception and production in tonal languages ....How, What and Who in Human Communication: Movement of Face and Voice. The aim of this project is to identify the essential characteristics of tone, affect, and identity from face and voice using a combination of signal processing, biological, and behavioural techniques in order to develop a comprehensive model of auditory-visual speech processing and communication. This research will significantly improve understanding of the basis of auditory-visual perception and production in tonal languages and in affective communication, facilitate links between neurophysiological processes and auditory-visual speech processing; and contribute to applications in automatic person recognition, automatic speech recognition, text-to-speech systems, and talking head aids for the hearing impaired.Read moreRead less
Integrating Models of Memory for Serial Order. This research aims to compare and integrate computational models of memory for serial order. The applicants have independently developed theoretically novel models, and this collaboration will enable them to combine and strengthen their complementary perspectives.
Much psychologically important processing, for example speech perception and spelling, requires the representation and reproduction of serial order information. Existing models account ....Integrating Models of Memory for Serial Order. This research aims to compare and integrate computational models of memory for serial order. The applicants have independently developed theoretically novel models, and this collaboration will enable them to combine and strengthen their complementary perspectives.
Much psychologically important processing, for example speech perception and spelling, requires the representation and reproduction of serial order information. Existing models account for a wide range of data and collectively represent exciting progress in the understanding of basic mechanisms of memory. Can these models be unified and reconciled? To date, detailed comparisons of models are lacking. This proposal is for the applicants to elaborate and unify their contrasting theoretical approaches.
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Music cognition in infants, children and adults. Music is an important tool for the expression of emotion and transmission of culture. One approach to understanding why music is a human universal is to examine how people process musical structure - the simultaneous and sequential pitch relations among tones of musical pieces. We investigate the way humans acquire implicit and explicit knowledge of such relations and the way exposure to music influences acquisition. Three experiments involving in ....Music cognition in infants, children and adults. Music is an important tool for the expression of emotion and transmission of culture. One approach to understanding why music is a human universal is to examine how people process musical structure - the simultaneous and sequential pitch relations among tones of musical pieces. We investigate the way humans acquire implicit and explicit knowledge of such relations and the way exposure to music influences acquisition. Three experiments involving infants, children and adults will compare formal musical training with incidental learning. Results will increase knowledge of the development of auditory perception and music cognition. Infant perceptual predispositions hold implications for music education.Read moreRead less
The role of time and similarity in short-term memory. The project examines the role of time and similarity in memory for serial order, with the long-term goal to construct a new computational model of short-term memory. The investigators are internationally known for their models, and the collaboration will enable them to combine their complementary perspectives into a unifying theory. Theory construction will be guided by two sets of studies: The first will delineate the circumstances, if any, ....The role of time and similarity in short-term memory. The project examines the role of time and similarity in memory for serial order, with the long-term goal to construct a new computational model of short-term memory. The investigators are internationally known for their models, and the collaboration will enable them to combine their complementary perspectives into a unifying theory. Theory construction will be guided by two sets of studies: The first will delineate the circumstances, if any, under which temporal separation at encoding affects memory. So far, we have shown that temporal distinctiveness has no effect on memory, unless people use temporal gaps to 'chunk' the list. The second set of studies will examine whether phonological similarity determines the strength of encoding.Read moreRead less
A philosophical and empirical approach to the nature of perception and belief. This project offers substantial benefits - intellectual, practical, and ultimately economic - to the nation. On the intellectual side, the project will contribute to research output and will further enhance the national research strength in the study of delusions, rationality, and agency, within both philosophy of mind and inter-disciplinary cognitive science. On the practical side, the project offers the prospect of ....A philosophical and empirical approach to the nature of perception and belief. This project offers substantial benefits - intellectual, practical, and ultimately economic - to the nation. On the intellectual side, the project will contribute to research output and will further enhance the national research strength in the study of delusions, rationality, and agency, within both philosophy of mind and inter-disciplinary cognitive science. On the practical side, the project offers the prospect of considerable benefits for the community as improved theories of the nature and causes of delusions generate strategies for earlier detection or even prevention of the development of delusions, new methods of therapy for patients, and better understanding for families.Read moreRead less
A unified theory of performance in absolute identification tasks. The ability to identify stimuli is fundamentally important in human cognition and is studied in absolute identification tasks, where people must identify one out of a number of stimuli, varying on a single dimension, with an appropriate label. A remarkable finding is that people cannot reliably identify more than about seven different stimuli. This limit imposes severe practical restrictions on our ability to categorise stimuli an ....A unified theory of performance in absolute identification tasks. The ability to identify stimuli is fundamentally important in human cognition and is studied in absolute identification tasks, where people must identify one out of a number of stimuli, varying on a single dimension, with an appropriate label. A remarkable finding is that people cannot reliably identify more than about seven different stimuli. This limit imposes severe practical restrictions on our ability to categorise stimuli and constitutes a perplexing problem for cognitive theory. This project involves an international collaborative effort by five leading researchers in mathematical psychology to develop a comprehensive, integrative model of human performance in absolute identification tasks.
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Solving the passport problem: re-designing photo-ID to improve recognition. We aim to contribute to national security and crime prevention by increasing the accuracy with which security staff can check the validity of photo-ID documents such as passports. Research shows that it is surprisingly difficult to determine if the image on a photo-ID document is of the bearer, and as a result it is likely that fraudulent use of photo-ID documents sometimes goes undetected. Our novel approach is to use ....Solving the passport problem: re-designing photo-ID to improve recognition. We aim to contribute to national security and crime prevention by increasing the accuracy with which security staff can check the validity of photo-ID documents such as passports. Research shows that it is surprisingly difficult to determine if the image on a photo-ID document is of the bearer, and as a result it is likely that fraudulent use of photo-ID documents sometimes goes undetected. Our novel approach is to use our knowledge of unfamiliar face perception to develop new image formats for photo-ID documents which increase the accuracy with which security staff can detect identity fraud.Read moreRead less
Intracortical inhibition evaluated by paired-pulse TMS during choice and simple reaction time tasks. The research will investigate the neurophysiological processes responsible for the selection and initiation of movement in response to an external stimulus. Slowness in the initiation and execution of movement is a common feature of 'neurological aging', neurodegenerative disease, and brain injury. Understanding the brain mechanisms involved in response selection and movement initiation will pro ....Intracortical inhibition evaluated by paired-pulse TMS during choice and simple reaction time tasks. The research will investigate the neurophysiological processes responsible for the selection and initiation of movement in response to an external stimulus. Slowness in the initiation and execution of movement is a common feature of 'neurological aging', neurodegenerative disease, and brain injury. Understanding the brain mechanisms involved in response selection and movement initiation will provide information for the development of specific intervention techniques to improve motor function in these groups.Read moreRead less
A cross-linguistic investigation of lexical stress using corpus analyses, behavioural testing and computational modelling. Some languages exhibit variable patterns of emphasis or 'lexical stress' across words ('ZEbra' v 'girAFFE'). This research will provide a more precise understanding of the role of lexical stress in language processing. This will assist educators/clinicians working with normally developing children and those with developmental delays as well as educators/students in second-l ....A cross-linguistic investigation of lexical stress using corpus analyses, behavioural testing and computational modelling. Some languages exhibit variable patterns of emphasis or 'lexical stress' across words ('ZEbra' v 'girAFFE'). This research will provide a more precise understanding of the role of lexical stress in language processing. This will assist educators/clinicians working with normally developing children and those with developmental delays as well as educators/students in second-language learning. It will also lead to improved automatic speech recognition/synthesis - used in commercial applications such as phone banking, edutainment/epistemic computer games and communication devices (speech-to-text dictation systems for those with limited mobility and text-to-speech systems for those unable to speak). Undertaken in collaboration with a high-profile research lab in the UK this project will maintain Australia's competitive edge in cognitive science.Read moreRead less