Uncertainty and response control in the prefrontal cortex. This project will identify how complex behaviours come to be performed habitually. It is proposed that statistical certainty in the learning environment is a key determinant of automatic behaviour, that detection of uncertainty can restore voluntary control of behaviour and that this is an important function of the prefrontal cortex of the brain.
Discovery Early Career Researcher Award - Grant ID: DE210101138
Funder
Australian Research Council
Funding Amount
$437,623.00
Summary
Habit formation and change in ageing: Developing a neuropsychological model. This project aims to investigate the neurobiological and neuropsychological determinants of habit formation and change in the context of ageing, by combining cutting-edge techniques in psychology, behavioural neuroscience and neuroimaging. This research expects to generate new knowledge in the area of automatic habits and behaviour change, by investigating how these processes are affected in ageing using an interdiscipl ....Habit formation and change in ageing: Developing a neuropsychological model. This project aims to investigate the neurobiological and neuropsychological determinants of habit formation and change in the context of ageing, by combining cutting-edge techniques in psychology, behavioural neuroscience and neuroimaging. This research expects to generate new knowledge in the area of automatic habits and behaviour change, by investigating how these processes are affected in ageing using an interdisciplinary approach. Expected outcomes include a new, comprehensive model of habit formation and change in ageing. This should provide significant benefits, as it will lay the foundation for future habit-based behaviour change interventions to support older people to age well and productively.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140101071
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Does obesity alter the associations to food related cues, contexts and responses? Obesity is increasing dramatically in the developed world. The reasons for this are unclear, however the abundance of cheap, palatable food is clearly a contributing factor. Studies suggest differences arise in the processing of food rewards between overweight and lean individuals and the way they respond to food associated cues. This indicates that food associated cues may be more likely to evoke feeding behaviour ....Does obesity alter the associations to food related cues, contexts and responses? Obesity is increasing dramatically in the developed world. The reasons for this are unclear, however the abundance of cheap, palatable food is clearly a contributing factor. Studies suggest differences arise in the processing of food rewards between overweight and lean individuals and the way they respond to food associated cues. This indicates that food associated cues may be more likely to evoke feeding behaviours in absence of metabolic needs, therefore contributing to over eating that leads to obesity. This project will determine how rats, exposed to a model of our obesogenic western diet, process distinct cues and contexts associated with food rewards and control value driven responses to gain food rewards.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200100591
Funder
Australian Research Council
Funding Amount
$375,956.00
Summary
Show me the money: Investigating how reward shapes attention and behaviour. This project aims to investigate how attention is automatically drawn towards stimuli that signal rewarding outcomes. Sometimes, the attention afforded to these reward cues (how we’ve learned to respond) is in direct conflict with our intentions (how we would like to behave). This project expects to generate new knowledge regarding how and when attentional distraction by reward is more automatic in nature as opposed to b ....Show me the money: Investigating how reward shapes attention and behaviour. This project aims to investigate how attention is automatically drawn towards stimuli that signal rewarding outcomes. Sometimes, the attention afforded to these reward cues (how we’ve learned to respond) is in direct conflict with our intentions (how we would like to behave). This project expects to generate new knowledge regarding how and when attentional distraction by reward is more automatic in nature as opposed to being inhibited by cognitive control processes. Expected outcomes of this project include better understanding of the learning processes that shape attentional responses, the neural correlates of the conflict that can arise and the link to behavioural outcomes (e.g., food choices). Read moreRead less
Western-style diet and impairments in food-intake control in humans. Animals fed a Western-style (W-S) diet high in saturated fat and added sugar rapidly develop cognitive impairments, which include disrupted food-intake control. This project aims to see if this also occurs in lean healthy people who eat a W-S diet. That is, are W-S diets associated with impaired cognition, and especially food-intake control, in adults and children, and is this caused by a W-S diet? Obesity is a major public hea ....Western-style diet and impairments in food-intake control in humans. Animals fed a Western-style (W-S) diet high in saturated fat and added sugar rapidly develop cognitive impairments, which include disrupted food-intake control. This project aims to see if this also occurs in lean healthy people who eat a W-S diet. That is, are W-S diets associated with impaired cognition, and especially food-intake control, in adults and children, and is this caused by a W-S diet? Obesity is a major public health issue and the significance of this project lies in testing a new account of how overeating may first occur. The expected outcome aims to show that a W-S diet can disrupt various aspects of cognition in adults and children, including food-intake control, providing an entirely new basis to argue for a better diet.Read moreRead less
Sleepy and sitting: a dual curse for the modern workforce? This project aims to generate new knowledge about the impact of inadequate sleep and prolonged sitting on health markers and performance. Many workers, particularly those working outside standard hours, experience both prolonged sitting and inadequate sleep. Expected outcomes of this project include critical evidence to address the dual burden experienced by a large population of workers who are both sleepy and sitting. This should provi ....Sleepy and sitting: a dual curse for the modern workforce? This project aims to generate new knowledge about the impact of inadequate sleep and prolonged sitting on health markers and performance. Many workers, particularly those working outside standard hours, experience both prolonged sitting and inadequate sleep. Expected outcomes of this project include critical evidence to address the dual burden experienced by a large population of workers who are both sleepy and sitting. This should provide significant benefits for the many working Australians whose health and safety is compromised due to their exposure to inadequate sleep and prolonged sitting. It will also contribute to the evidence-base for workplace policies and public health guidelines.Read moreRead less
Ageing drivers: Cognitive ageing and technology. This project aims to enhance our understanding of whether cognitive changes associated with ageing impacts older drivers' use of emerging vehicle automation and assistive technologies. Through analysis of insurance claims databases, a large consumer survey and a naturalistic driving study, evidence will be obtained on how ageing and cognition interact with assistive technology. Findings will inform older drivers, government policy makers and indus ....Ageing drivers: Cognitive ageing and technology. This project aims to enhance our understanding of whether cognitive changes associated with ageing impacts older drivers' use of emerging vehicle automation and assistive technologies. Through analysis of insurance claims databases, a large consumer survey and a naturalistic driving study, evidence will be obtained on how ageing and cognition interact with assistive technology. Findings will inform older drivers, government policy makers and industry on ageing, cognitive changes and the use of assistive technology in vehicles. This will provide benefits for older drivers by promoting optimal driving which will enhance social engagement as well as safety. Read moreRead less
Australian Laureate Fellowships - Grant ID: FL190100011
Funder
Australian Research Council
Funding Amount
$3,232,000.00
Summary
Contemporary life engagement and cognitive resilience in ageing. The aim of this Laureate Fellowship is to make a significant advance in our understanding of cognitive ageing through the adult life course by discovering how contemporary lifestyles and experience impact on cognitive resilience and cognitive function. Population ageing is occurring globally, creating an urgent need for evidence to inform strategies to promote ageing well and productively. Through assessment of adults aged 18-90 (a ....Contemporary life engagement and cognitive resilience in ageing. The aim of this Laureate Fellowship is to make a significant advance in our understanding of cognitive ageing through the adult life course by discovering how contemporary lifestyles and experience impact on cognitive resilience and cognitive function. Population ageing is occurring globally, creating an urgent need for evidence to inform strategies to promote ageing well and productively. Through assessment of adults aged 18-90 (across the life course), this project will evaluation the impact of technology, life space and sensory function on brain structure and function, and cognition. Intended benefits include provision of evidence to inform interventions and policies that optimize cognitive resilience and reduce cognitive decline.Read moreRead less
How people learn inhibitory associations. This project aims to combine insights from associative and cognitive theories to investigate how people acquire, represent and generalise knowledge about inhibitory, or preventative, relationships. The project intends to use novel methods to assess the inhibitory causal structures inferred by individual participants, expected to include direct outcome prevention, modulation of a causal relationship, and configural learning. This project should expand our ....How people learn inhibitory associations. This project aims to combine insights from associative and cognitive theories to investigate how people acquire, represent and generalise knowledge about inhibitory, or preventative, relationships. The project intends to use novel methods to assess the inhibitory causal structures inferred by individual participants, expected to include direct outcome prevention, modulation of a causal relationship, and configural learning. This project should expand our understanding of the mechanisms of human associative learning. The project should benefit and inform clinical interventions based on identifying and normalising maladaptive learned associations.Read moreRead less
The role of reward expectancy and reward availability in appetitive motivation. This project will investigate the learning processes that help regulate our desire for rewards such as food and drugs and our decisions about when to pursue those rewards. The results will have implications for our understanding of normal reward motivation as well as interventions for maladaptive behaviours such as gambling and drug-taking.