Multidimensional unfolding: the latitude of acceptance and the structure of the single peaked response process in a multidimensional space. The latitude of acceptance and the operational function that structures the single peaked response process have only recently been understood as central to unidimensional models for the measurement of attitude, preference and choice. They have been neglected in multidimensional models. This project will formalise these two central components in a multidimens ....Multidimensional unfolding: the latitude of acceptance and the structure of the single peaked response process in a multidimensional space. The latitude of acceptance and the operational function that structures the single peaked response process have only recently been understood as central to unidimensional models for the measurement of attitude, preference and choice. They have been neglected in multidimensional models. This project will formalise these two central components in a multidimensional space. The operational function governs the relationship between any item-person distance and the latitude of acceptance defines a multidimensional hyper-sphere within which the more positive response is more likely. The project will articulate and operationalise these models for a range of typical response formats from ranking to pairwise preferences.Read moreRead less
Categorization and Working Memory: Bridging two Pillars of Cognition. Categorization is a fundamental cognitive skill that underlies much expert behavior, including medical diagnosis. A given task often gives rise to widely divergent strategies across individuals, and flawed strategies have been implicated in prediction errors of experts (e.g., bush fire fighters). This project seeks to identify the underlying variables that determine an individual's strategy acquisition by relating working memo ....Categorization and Working Memory: Bridging two Pillars of Cognition. Categorization is a fundamental cognitive skill that underlies much expert behavior, including medical diagnosis. A given task often gives rise to widely divergent strategies across individuals, and flawed strategies have been implicated in prediction errors of experts (e.g., bush fire fighters). This project seeks to identify the underlying variables that determine an individual's strategy acquisition by relating working memory performance to categorization. Working memory is a core cognitive construct that is quite well understood, but its relationship to category learning has so far remained unexplored. Being able to predict the development of categorization strategies can help maximize expert performance.Read moreRead less
Are two processes one too many? An investigation of the viability of the dual-process model of recognition memory. Memory is the glue that holds together our lives and personal identities. While psychologists are developing better and more sophisticated accounts of how it works, many deep questions remain. The present research examines some of these questions in relation to how memory can be decomposed into its component processes and how we are to understand these processes. An appropriate unde ....Are two processes one too many? An investigation of the viability of the dual-process model of recognition memory. Memory is the glue that holds together our lives and personal identities. While psychologists are developing better and more sophisticated accounts of how it works, many deep questions remain. The present research examines some of these questions in relation to how memory can be decomposed into its component processes and how we are to understand these processes. An appropriate understanding of these questions is vital to the development of interventions (both psychological and pharmacological) designed to halt or even reverse memory decline associated with normal aging and age-associated brain disease (such as Alzheimer disease).Read moreRead less
Towards an integrated model of reasoning and reasoning development. This project aims to identify the core cognitive processes that underlie different forms of reasoning and how they develop. The project intends to use a signal detection framework to derive detailed computational models of reasoning which can then be tested through Bayesian computational modelling as well as the first systematic investigation of developmental change in reasoning processes. Expected outcomes include a more princi ....Towards an integrated model of reasoning and reasoning development. This project aims to identify the core cognitive processes that underlie different forms of reasoning and how they develop. The project intends to use a signal detection framework to derive detailed computational models of reasoning which can then be tested through Bayesian computational modelling as well as the first systematic investigation of developmental change in reasoning processes. Expected outcomes include a more principled and comprehensive computational model of reasoning in both adults and children. The project should provide significant benefits by helping to resolve long-standing debates about how humans reason complex arguments relevant to everyday lives and guide development of more effective methods for teaching reasoning.Read moreRead less
Single and dual process models of recognition memory: Reconciliation of behavioural, electrophysiological, and neuroimaging data. Advanced brain scanning technologies are increasingly used to study human memory. As well as being important for our basic understanding of memory, they also tell us how memory is affected by normal development, ageing, disease, and injury. Unfortunately, because these technologies are so new, a gap has opened up between our psychological understanding of memory and t ....Single and dual process models of recognition memory: Reconciliation of behavioural, electrophysiological, and neuroimaging data. Advanced brain scanning technologies are increasingly used to study human memory. As well as being important for our basic understanding of memory, they also tell us how memory is affected by normal development, ageing, disease, and injury. Unfortunately, because these technologies are so new, a gap has opened up between our psychological understanding of memory and the physiological events measured by the scanning technologies. This has created a problem for how we should interpret the results that are found. The present project aims to close this gap by applying new research methodologies and theoretical insights based on our previous research.Read moreRead less
State-trace analysis: theory and application. A fundamental question for the science of psychology is: how can we identify the functional components of the human mind from observed behaviour and bodily states? This project explores this question through a new methodology called state-trace analysis and apply it to a basic cognitive ability - the capacity to learn to classify different objects.
Adaptive processes in normal and disordered face perception. Faces provide a wealth of social cues that guide interpersonal interactions, and most individuals are able to distinguish thousands of faces despite their perceptual similarity. This research investigates the foundations of these impressive face-perception skills and how they are disrupted in autism, a developmental disorder in which face perception is impaired. We focus on how the brain adaptively tailors its perceptual apparatus to ....Adaptive processes in normal and disordered face perception. Faces provide a wealth of social cues that guide interpersonal interactions, and most individuals are able to distinguish thousands of faces despite their perceptual similarity. This research investigates the foundations of these impressive face-perception skills and how they are disrupted in autism, a developmental disorder in which face perception is impaired. We focus on how the brain adaptively tailors its perceptual apparatus to interpret the structure of a face, for its identity, emotional content, and even intent. Uncovering how these processes function in normal and abnormal face perception could help develop effective interventions when these processes are disrupted in autism.Read moreRead less
Understanding the link between reading impairments and emotional problems. This Project aims to understand why children with reading impairments are at increased risk for emotional problems. By integrating the statistical power of large-scale longitudinal studies with the causal testing power of intervention case studies, it seeks to fast-track the development of a comprehensive evidence-based theory of the mechanisms linking reading impairments and emotional problems. The outcomes will pave the ....Understanding the link between reading impairments and emotional problems. This Project aims to understand why children with reading impairments are at increased risk for emotional problems. By integrating the statistical power of large-scale longitudinal studies with the causal testing power of intervention case studies, it seeks to fast-track the development of a comprehensive evidence-based theory of the mechanisms linking reading impairments and emotional problems. The outcomes will pave the way for future diagnosis and treatment of concomitant reading and emotional difficulties in children. These outcomes improve our capacity to reduce the incidence of two common problems that limit the life success of Australian children - poor literacy and poor emotional health.Read moreRead less
Evaluative learning: do all roads lead to Rome? This project aims to enhance understanding of how likes and dislikes are acquired and changed across a range of different settings. Evaluative learning, the acquisition and change of likes and dislikes, is ubiquitous and occurs in situations that range from trivial to traumatic. However, it is unknown whether evaluative learning in these different situations is mediated by a single or distinct learning mechanisms. Answering this question is critica ....Evaluative learning: do all roads lead to Rome? This project aims to enhance understanding of how likes and dislikes are acquired and changed across a range of different settings. Evaluative learning, the acquisition and change of likes and dislikes, is ubiquitous and occurs in situations that range from trivial to traumatic. However, it is unknown whether evaluative learning in these different situations is mediated by a single or distinct learning mechanisms. Answering this question is critically important for emotion science and the design of effective interventions for anxiety disorders and public health campaigns. The expected outcomes from this project will provide significant benefits, such as creating new knowledge to assist in applied areas ranging from the design of public health messages to the treatment for anxiety.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200101570
Funder
Australian Research Council
Funding Amount
$409,038.00
Summary
The cognitive basis of anxiety-linked heightened negative expectancies. Problems with anxiety tear at the social and economic fabric of our nation. Individuals with an elevated vulnerability to experience high levels of anxiety display a heightened tendency to expect that the future will be emotionally negative. The current project will test compelling new hypotheses concerning the cognitive mechanisms that causally underpin such negative expectancies, using cutting-edge cognitive methodologies ....The cognitive basis of anxiety-linked heightened negative expectancies. Problems with anxiety tear at the social and economic fabric of our nation. Individuals with an elevated vulnerability to experience high levels of anxiety display a heightened tendency to expect that the future will be emotionally negative. The current project will test compelling new hypotheses concerning the cognitive mechanisms that causally underpin such negative expectancies, using cutting-edge cognitive methodologies that permit not only the sensitive assessment, but also the direct manipulation, of these mechanisms. The findings generated will exert major scientific impact, and will directly contribute to our national strategic efforts to improve the mental well-being of our citizens, and to build healthy and resilient communities.Read moreRead less