Discovery Early Career Researcher Award - Grant ID: DE190100136
Funder
Australian Research Council
Funding Amount
$385,288.00
Summary
The influence of naturalistic context on visual short-term memory. This project aims to understand visual short-term memory in natural visual environments using a combination of behavioural and brain data. Visual short-term memory is thought to be critical to complex cognitive tasks such as learning and problem solving, but how low-level image context and high-level semantic information influence short-term memory is poorly understood. This project will use advanced computational image processin ....The influence of naturalistic context on visual short-term memory. This project aims to understand visual short-term memory in natural visual environments using a combination of behavioural and brain data. Visual short-term memory is thought to be critical to complex cognitive tasks such as learning and problem solving, but how low-level image context and high-level semantic information influence short-term memory is poorly understood. This project will use advanced computational image processing tools, neuro-imaging, and psychophysical experiments to provide a comprehensive analysis of short-term memory in naturalistic images. The expected outcome is a better understanding of the neural bottlenecks that limit short-term memory, and a model that predicts memory constraints in natural visual environments.Read moreRead less
How human vision separately determines object and scene motion. This project aims to enhance understanding of how people process visual scenes containing multiple moving objects of interest. The project intends to measure human visual performance to determine how the brain processes multiple motion signals simultaneously. Expected outcomes include an increased understanding of how we are able to use an evolving visual scene to distinguish between changes due to self-motion and those due to the m ....How human vision separately determines object and scene motion. This project aims to enhance understanding of how people process visual scenes containing multiple moving objects of interest. The project intends to measure human visual performance to determine how the brain processes multiple motion signals simultaneously. Expected outcomes include an increased understanding of how we are able to use an evolving visual scene to distinguish between changes due to self-motion and those due to the motion of multiple moving objects such as crowded city footpaths and busy roads. The results will improve our understanding of failures to see moving objects in challenging viewing conditions (for example, high density traffic), and inform work in the design of autonomous driving and augmented reality display systems.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180100433
Funder
Australian Research Council
Funding Amount
$365,058.00
Summary
Cortical layer specific functional imaging of the human brain. This project aims to record layer specific cortical activity in humans by leveraging ultra-high field magnetic resonance imaging. It expects to yield robust techniques for the general analysis of neuroimaging-based, layer-specific measurements. This project will progress the fields of cognitive neuroscience and neuroimaging as well as bring the field of neuroimaging closer to that of neurophysiology and thus facilitate collaboration ....Cortical layer specific functional imaging of the human brain. This project aims to record layer specific cortical activity in humans by leveraging ultra-high field magnetic resonance imaging. It expects to yield robust techniques for the general analysis of neuroimaging-based, layer-specific measurements. This project will progress the fields of cognitive neuroscience and neuroimaging as well as bring the field of neuroimaging closer to that of neurophysiology and thus facilitate collaboration among researchers.Read moreRead less
Contextual modulation in high-level vision. This project aims to understand the nature and mechanisms of spatial contextual modulation and the relationship between spatial and temporal context. Contextual modulation refers to the sometimes profound changes in the appearance of the visual image caused by interactions across space and time. Little work has been done to examine whether spatial context effects exist for high-level attributes of objects, and socially relevant stimuli such as heads an ....Contextual modulation in high-level vision. This project aims to understand the nature and mechanisms of spatial contextual modulation and the relationship between spatial and temporal context. Contextual modulation refers to the sometimes profound changes in the appearance of the visual image caused by interactions across space and time. Little work has been done to examine whether spatial context effects exist for high-level attributes of objects, and socially relevant stimuli such as heads and bodies. This project expects to provide new knowledge regarding the way that contextual modulation is mediated by interactions within the normal human visual system. This will provide significant societal benefits as contextual interactions in sensory processing can have profound consequences for our perceptual experience.Read moreRead less
Extracting meaning from motion. This project aims to understand how the human visual system uses motion signals to detect the presence of other people and nonhuman animals. This question links vision science to social experience, and will be addressed using rigorous methods for studying human vision combined with 3D graphical modelling of interactive motion. The expected outcomes include an improved theoretical understanding of how rich, social information is extracted from motion signals in the ....Extracting meaning from motion. This project aims to understand how the human visual system uses motion signals to detect the presence of other people and nonhuman animals. This question links vision science to social experience, and will be addressed using rigorous methods for studying human vision combined with 3D graphical modelling of interactive motion. The expected outcomes include an improved theoretical understanding of how rich, social information is extracted from motion signals in the brain and the introduction of new techniques for testing an individual's social perception. This is expected to provide the knowledge and methodological tools to progress research in clinical neuroscience, computer vision, and interactive robotics.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200100139
Funder
Australian Research Council
Funding Amount
$426,979.00
Summary
Understanding the neural dynamics of colour constancy and feature binding. A key open question in visual neuroscience is how sensory input is combined with higher-level influences (e.g. attentional state). This project aims to address this using neuroimaging techniques combined with sophisticated analysis methods that were recently developed to measure when stimulus-related information is being transferred between different brain regions. These methods will be used to investigate the neural mech ....Understanding the neural dynamics of colour constancy and feature binding. A key open question in visual neuroscience is how sensory input is combined with higher-level influences (e.g. attentional state). This project aims to address this using neuroimaging techniques combined with sophisticated analysis methods that were recently developed to measure when stimulus-related information is being transferred between different brain regions. These methods will be used to investigate the neural mechanisms underlying two fundamental phenomena in visual perception: feature binding and colour constancy. Understanding the neural mechanisms by which sensory input interacts with attention for these tasks would be a major advance in understanding how interactions between brain regions give rise to our perceptual experiences.Read moreRead less
Cortical layers: examining the role of feedback in human visual perception. This project aims to generate a detailed mechanistic understanding of the neural circuitry underlying human visual perception. Through an international collaboration with the world-renowned Max Planck Institute, Germany, the project will exploit powerful new tools to measure human brain activity in cortical layers to test major theoretical models of human vision. The anticipated results are expected to significantly adva ....Cortical layers: examining the role of feedback in human visual perception. This project aims to generate a detailed mechanistic understanding of the neural circuitry underlying human visual perception. Through an international collaboration with the world-renowned Max Planck Institute, Germany, the project will exploit powerful new tools to measure human brain activity in cortical layers to test major theoretical models of human vision. The anticipated results are expected to significantly advance our basic understanding of how the human visual system parses complex visual input into objects and visual scenes, which may inform the development of artificial vision systems.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200101159
Funder
Australian Research Council
Funding Amount
$420,556.00
Summary
Understanding the role of hemispheric communication in the human brain. A crucial question in cognitive neuroscience regards how humans integrate perceptual information to understand and interact with our environment. This project aims to identify neural processes that operate competitively and cooperatively within the left and right hemispheres to understand how the human brain integrates information for perception. This project expects to generate new insight into the nature of hemispheric com ....Understanding the role of hemispheric communication in the human brain. A crucial question in cognitive neuroscience regards how humans integrate perceptual information to understand and interact with our environment. This project aims to identify neural processes that operate competitively and cooperatively within the left and right hemispheres to understand how the human brain integrates information for perception. This project expects to generate new insight into the nature of hemispheric communication and perceptual decision making. This should provide significant benefits by understanding how the two brain hemispheres process different visual information yet communicate efficiently to allow seamless interface with the world.Read moreRead less
Cognitive Foundations of Fast Decision Making. This project aims to develop a new theory of fast decision making. In all walks of life, from the sports field to the battlefield, fast and accurate decisions are central to human performance. This project will develop and test mathematical models of the processes involved in making decisions with continuous choice sets and decisions requiring integration of multiple sources of information and decisions in which information varies over time. It is e ....Cognitive Foundations of Fast Decision Making. This project aims to develop a new theory of fast decision making. In all walks of life, from the sports field to the battlefield, fast and accurate decisions are central to human performance. This project will develop and test mathematical models of the processes involved in making decisions with continuous choice sets and decisions requiring integration of multiple sources of information and decisions in which information varies over time. It is expected to contribute to our understanding of factors that characterise and limit human performance in settings in which fast and accurate decisions are required. It is expected to benefit the design of systems and environments in which safety and efficiency depend on human decision making.Read moreRead less
Understanding the neural basis of gaze behaviour in the human brain. Selecting where to look is a necessary step in human vision that is vital for guiding social behaviours. For example, although we inadvertently look toward faces in our environment, especially faces expressing emotion, we do not know how this is accomplished. This project aims to define the mechanisms responsible for detecting and prioritising faces in the human brain. The results are expected to advance our understanding of ho ....Understanding the neural basis of gaze behaviour in the human brain. Selecting where to look is a necessary step in human vision that is vital for guiding social behaviours. For example, although we inadvertently look toward faces in our environment, especially faces expressing emotion, we do not know how this is accomplished. This project aims to define the mechanisms responsible for detecting and prioritising faces in the human brain. The results are expected to advance our understanding of how vision operates in daily life, and augment theories of how the prioritisation of social cues might differ in people living with Anxiety disorders. It is anticipated that the project outcomes will also inform the development of artificial vision systems that can interpret social meaning in visual environments.
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