Discovery Early Career Researcher Award - Grant ID: DE210100790
Funder
Australian Research Council
Funding Amount
$419,308.00
Summary
Understanding how the brain combines sensory information. The ease with which we perceive the external world belies the complexity involved in integrating different sensory inputs. How does the brain achieve this fundamental operation? The project will address this question using a multidisciplinary approach that combines computational modelling, brain imaging, and psychophysical techniques. The expected outcomes of the project are a better understanding of how people perceive the world through ....Understanding how the brain combines sensory information. The ease with which we perceive the external world belies the complexity involved in integrating different sensory inputs. How does the brain achieve this fundamental operation? The project will address this question using a multidisciplinary approach that combines computational modelling, brain imaging, and psychophysical techniques. The expected outcomes of the project are a better understanding of how people perceive the world through optimal integration of sensory cues. In addition to advancing basic scientific knowledge, the findings will illuminate perceptual anomalies in normally developing children and will provide a foundation for reducing a debilitating side effect of virtual reality systems known as ‘cybersickness’.Read moreRead less
Neuronal and behavioural correlates of sensory adaptation. Sensory systems adapt to the statistics of their environment, and the consequences of this adaptation are evident in neuronal activity and in animal’s behaviour. This project will employ a novel paradigm to characterise how adaptation changes the response properties of individual sensory neurons to improve efficiency of information transmission.
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.
Binocular rivalry: a new model to measure it, and a new approach to attention and crossmodal influences. Ambiguity is inherent in visual perception. Retinal images under-specify the outside world and may suggest several interpretations, causing our perception to oscillate between them. This project will introduce a new and more objective method for quantifying this perceptual ambiguity and use it to explore the brain's response to ambiguous sensory inputs.
The emotional face. The recognition of emotional facial expressions is essential for successful social functioning. This project will determine how information concerning facial expressions is encoded by the human brain, providing potential insight into situations where this process can fail, such as in old age or autism.
The multitasking brain: training and individual differences. Difficulties with doing two things at once are experienced by everyone, but are particularly common as we get older and in the context of many neurological and psychiatric conditions. This project will examine how training changes the brain to improve multitasking performance and why some individuals are better at multitasking than others.
Bottlenecks in the brain: a causal role for the frontal-parietal network in multitasking limitations. When considering the information processing demands of modern life (for example, hands-free mobile phone use and driving) it is crucial to understand the mechanisms that underlie the severe multitasking limitations experienced by healthy individuals and clinical groups. This project investigates the brain regions critical for such limits to concentration.
Attention please! Selective attention and human associative learning. Selective attention allows us to pick useful pieces of information out of the mass of stimulation that we're faced with every moment. This project investigates how what we've previously learnt about the significance of events influences whether we'll pick them out as useful in future, and how this might be impaired by old age or mental disorder.
Perception of Gaze, Head and Body Direction. This project aims to understand the computational processes in our brains that enable us to know where someone else is looking. To an observer, the direction of your gaze reveals where you are looking and hence what you are looking at. This might be an object of shared attention or it might be the observer him or herself. The direction of your gaze is thus a strong social signal to your intentions and future actions. Project findings may be of signifi ....Perception of Gaze, Head and Body Direction. This project aims to understand the computational processes in our brains that enable us to know where someone else is looking. To an observer, the direction of your gaze reveals where you are looking and hence what you are looking at. This might be an object of shared attention or it might be the observer him or herself. The direction of your gaze is thus a strong social signal to your intentions and future actions. Project findings may be of significance to clinicians seeking to rehabilitate the malfunction of social communicative skills, to scientists interested in the social attention system, and to engineers designing robotic systems to interact socially with humans.Read moreRead less
The causes and consequences of attentional rescaling. This project aims to investigate the mechanisms that underlie people’s capacity to rescale the focus of their visual attention. Such rescalings are important because they are linked with people’s capacity to perform specific tasks. Using an innovative approach within cognitive psychology that integrates individual differences, experimental, and training frameworks, this project expects to generate new theoretical knowledge about attentional ....The causes and consequences of attentional rescaling. This project aims to investigate the mechanisms that underlie people’s capacity to rescale the focus of their visual attention. Such rescalings are important because they are linked with people’s capacity to perform specific tasks. Using an innovative approach within cognitive psychology that integrates individual differences, experimental, and training frameworks, this project expects to generate new theoretical knowledge about attentional re-scaling and its possible improvement. The expected outcomes include selection and training programs for specific contexts such as training athletes and flight attendants. Economic benefits can be expected through the identification of those who will benefit most from training (reducing waste) and developing cost-effective forms of training which improve task performance.Read moreRead less