Discovery Early Career Researcher Award - Grant ID: DE190101043
Funder
Australian Research Council
Funding Amount
$404,956.00
Summary
Tackling facial prejudice. This project aims to investigate individual differences in facial prejudice, a powerful psychological bias whereby people rely on inaccurate first impressions to guide key decisions, such as whom to trust. Utilising recent advances in electrophysiology, the project will develop a new neural marker of individual differences in facial impressions that lead to prejudice. The project expects to lead to insights into the link between visual perception and social behaviour, ....Tackling facial prejudice. This project aims to investigate individual differences in facial prejudice, a powerful psychological bias whereby people rely on inaccurate first impressions to guide key decisions, such as whom to trust. Utilising recent advances in electrophysiology, the project will develop a new neural marker of individual differences in facial impressions that lead to prejudice. The project expects to lead to insights into the link between visual perception and social behaviour, and to develop strategies to reduce facial prejudice given the pervasive influence it has on everyday life.Read moreRead less
Who may judge a book by its cover? This project aims to build a model of how and why people vary in their impressions of others and in the accuracy of these impressions. People readily form impressions of others from their faces and these impressions influence crucial decisions: election results, court case outcomes and partner choices. To build this model, the project will apply twin data and construct a psychometric test to measure variation in facial impressions. The research is expected to l ....Who may judge a book by its cover? This project aims to build a model of how and why people vary in their impressions of others and in the accuracy of these impressions. People readily form impressions of others from their faces and these impressions influence crucial decisions: election results, court case outcomes and partner choices. To build this model, the project will apply twin data and construct a psychometric test to measure variation in facial impressions. The research is expected to lead to insights into this aspect of social perception, and to identify the sources of atypical or inaccurate facial judgements. This has applications in health contexts (to identify social impairment) and in security contexts (for personnel selection).Read moreRead less
Filters reveal what flicker conceals: temporal processing in the human visual system. I have recently discovered a new form of camouflage using 10Hz luminance flicker. This project will quantify this effect and examine the extent to which it generalises across colour and spatial dimensions and to video sequences depicting natural scenes. This information is expected to provide foundational information to technologies relating to national security that rely on visual concealment. This research wi ....Filters reveal what flicker conceals: temporal processing in the human visual system. I have recently discovered a new form of camouflage using 10Hz luminance flicker. This project will quantify this effect and examine the extent to which it generalises across colour and spatial dimensions and to video sequences depicting natural scenes. This information is expected to provide foundational information to technologies relating to national security that rely on visual concealment. This research will examine the extent to which filtering out these camouflaging frequencies enhances our sensitivity to low temporal frequency information. This decamouflaging aspect of my research is expected to improve the clarity of digital video-based technologies including ultrasound, educational, info-tainment and defence applicationsRead 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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Unconscious processing: To what extent, how flexible and how smart? We are unaware of the sophisticated pattern analyses conducted by our perceptual systems that enable us to operate in a complex environment. Less clear is whether unconsciously presented information itself can influence our behaviour or indeed whether unconscious cognition occurs. The proposed studies provide the foundation and structure for a pioneering examination of the extent, flexibility and computational power of unconscio ....Unconscious processing: To what extent, how flexible and how smart? We are unaware of the sophisticated pattern analyses conducted by our perceptual systems that enable us to operate in a complex environment. Less clear is whether unconsciously presented information itself can influence our behaviour or indeed whether unconscious cognition occurs. The proposed studies provide the foundation and structure for a pioneering examination of the extent, flexibility and computational power of unconscious processing at the level of neural response and behaviour. The impact and benefits of the project will be in its contribution to theory with outcomes revealing the boundary conditions governing unconscious cognition and providing a first benchmark for how such conditions might vary across the lifespan.Read moreRead less
Brain mechanisms for coordinating with others through sound. Distinguishing between sounds produced by self and others is critical for interpersonal coordination and communication through speech and music. This project employs a novel dual-brain electrophysiological technique with tagged audio signals to elucidate how the human brain achieves this distinction, and when and why it cannot. Expected outcomes include new knowledge on the neurophysiological mechanisms that support self-other processi ....Brain mechanisms for coordinating with others through sound. Distinguishing between sounds produced by self and others is critical for interpersonal coordination and communication through speech and music. This project employs a novel dual-brain electrophysiological technique with tagged audio signals to elucidate how the human brain achieves this distinction, and when and why it cannot. Expected outcomes include new knowledge on the neurophysiological mechanisms that support self-other processing, and the acoustic conditions and behavioural strategies that facilitate their operation. These outcomes should ultimately have applied benefits for improving interpersonal coordination and social interaction, especially in digital environments and clinical populations with atypical self-other processing.Read moreRead less
Cortical topology underlying the representation and analysis of visual scenes. When we look around us we seem to perceive our visual surroundings fully, accurately and instantaneously. Despite this strong impression, recent research has revealed that none of this is true. Using virtual environments, brain imaging and neural network simulations, this project aims to discover more about what we do see, which part of our brain stores what we see, and how this storage takes place. The work has the p ....Cortical topology underlying the representation and analysis of visual scenes. When we look around us we seem to perceive our visual surroundings fully, accurately and instantaneously. Despite this strong impression, recent research has revealed that none of this is true. Using virtual environments, brain imaging and neural network simulations, this project aims to discover more about what we do see, which part of our brain stores what we see, and how this storage takes place. The work has the potential to influence the design of danger signs, teleoperated and virtual displays and autonomous machines. It should also help motivate new treatments and rehabilitation regimes for stroke victims.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101064
Funder
Australian Research Council
Funding Amount
$373,536.00
Summary
How musical rhythms entrain the human brain. This project is designed to investigate the brain mechanisms that allow humans to feel the beat in musical rhythms. Although such activity facilitates pro-social and therapeutic effects, the underlying brain mechanisms remain unknown. The project intends to examine the interface between musical rhythms, behaviour and brain activity to increase knowledge on a fundamental process of brain function: the dynamic coupling between perception and body moveme ....How musical rhythms entrain the human brain. This project is designed to investigate the brain mechanisms that allow humans to feel the beat in musical rhythms. Although such activity facilitates pro-social and therapeutic effects, the underlying brain mechanisms remain unknown. The project intends to examine the interface between musical rhythms, behaviour and brain activity to increase knowledge on a fundamental process of brain function: the dynamic coupling between perception and body movement. The project aims to provide insight into how psychological, environmental and neural mechanisms affect entrainment to rhythmic events and inform practices for education and clinical rehabilitation.Read moreRead less
Psychological and neurophysiological mechanisms underlying human interaction in musical contexts. Human interaction in musical groups is a culturally widespread activity that showcases the remarkable capacity for precision and creativity in interpersonal coordination. Although such activity has beneficial effects, including the facilitation of prosociality and positive therapeutic outcomes, the psychological and neurophysiological mechanisms that underpin an individual’s ability to coordinate wi ....Psychological and neurophysiological mechanisms underlying human interaction in musical contexts. Human interaction in musical groups is a culturally widespread activity that showcases the remarkable capacity for precision and creativity in interpersonal coordination. Although such activity has beneficial effects, including the facilitation of prosociality and positive therapeutic outcomes, the psychological and neurophysiological mechanisms that underpin an individual’s ability to coordinate with others remain poorly understood. This project aims to investigate these mechanisms by examining relationships between behaviour, social factors, and brain structure and function in naturalistic and laboratory settings. This will inform the assessment and treatment of clinical conditions that affect movement timing and social interaction.Read moreRead less
Establishing how head and face movement properties contribute to the perception of speech and identity. The proposed studies provide an extensive research program into audio-visual speech processing and person identification: key components of face-to-face communication. The likely impact and benefits of the project concern its contribution to perceptual theory (linking signal, brain and behaviour) and its practical implications: For determining the viability of multimodal biometric identificati ....Establishing how head and face movement properties contribute to the perception of speech and identity. The proposed studies provide an extensive research program into audio-visual speech processing and person identification: key components of face-to-face communication. The likely impact and benefits of the project concern its contribution to perceptual theory (linking signal, brain and behaviour) and its practical implications: For determining the viability of multimodal biometric identification procedures by assessing the distinctiveness and permanence of AV speech characteristics. In the development of a visual dubbing technique that has potential for communication in noisy environments (and for the deaf) and for the development of a morphable model for AV presentation that has application for both first and second language learning.Read moreRead less