How feedback can impair recognition judgments and undermine border security, criminal investigations, educational testing, and medical screening. If a customs officer learns that they have missed an explosive device while screening luggage, will this affect their judgment? In many scenarios, a person receives feedback about their recognition memory performance and has to try again without having another chance to study the material. Almost no research has examined the effects of feedback on reco ....How feedback can impair recognition judgments and undermine border security, criminal investigations, educational testing, and medical screening. If a customs officer learns that they have missed an explosive device while screening luggage, will this affect their judgment? In many scenarios, a person receives feedback about their recognition memory performance and has to try again without having another chance to study the material. Almost no research has examined the effects of feedback on recognition in the absence of opportunity for further study. This is problematic because many vitally important recognition decisions lack such opportunity. Using various scenarios (face recognition, security screening, multiple-choice testing, and medical screening) this project will demonstrate that feedback affects recognition performance differently depending on the nature of the recognition decision.Read moreRead less
A model of sex offender registration, monitoring, and risk management. This research will investigate the ways in which sexual offenders are managed in the community and identify the most effective means of preventing further offending, thereby promoting community safety.
A formal signal detection model of eyewitness identification. The project aims to aid in producing better procedures for the collection and assessment of eyewitness identification evidence. In a police line-up, a witness is asked to identify a perpetrator from a group of similar individuals. Applied research has focused on conditions that optimise witness performance but many of the conclusions from this research have been challenged on the basis that they use inappropriate measures of performan ....A formal signal detection model of eyewitness identification. The project aims to aid in producing better procedures for the collection and assessment of eyewitness identification evidence. In a police line-up, a witness is asked to identify a perpetrator from a group of similar individuals. Applied research has focused on conditions that optimise witness performance but many of the conclusions from this research have been challenged on the basis that they use inappropriate measures of performance. Recent work has highlighted the usefulness of analyses based on the theory of signal detection. However, the line-up task does not fit easily within standard signal detection paradigms as it combines two tasks; detection and identification. The project aims to understand how these components work in order to measure witness performance.Read moreRead less
Who should join the suspect in a police photo array? The traditional police line-up often produces inaccurate decisions, with witnesses failing to pick the culprit or picking an innocent suspect. Surprisingly, despite all the scientific advances with respect to the collection of eyewitness evidence, there is absolutely no objective basis for selecting the ‘fillers’ to accompany the suspect in the line-up. Guidelines merely suggest the fillers should not be too similar or too dissimilar to the su ....Who should join the suspect in a police photo array? The traditional police line-up often produces inaccurate decisions, with witnesses failing to pick the culprit or picking an innocent suspect. Surprisingly, despite all the scientific advances with respect to the collection of eyewitness evidence, there is absolutely no objective basis for selecting the ‘fillers’ to accompany the suspect in the line-up. Guidelines merely suggest the fillers should not be too similar or too dissimilar to the suspect. However, the fillers are likely to have a crucial influence on decision accuracy. This project aims to remedy this striking deficiency by developing and testing a flexible and universally applicable methodology for photo array composition that will optimise judgmental discriminability and curtail bias.Read moreRead less
How we remember and misremember traumatic experiences. The project addresses a significant and important problem: the role of memory distortion in Post Traumatic Stress Disorder (PTSD), a global disorder with significant personal, societal and economic costs. The aim of this project is to empirically investigate the extent, causes and triggering conditions of errors in memory for traumatic experiences; particularly exaggeration of these memories, which has been linked to poor psychological adjus ....How we remember and misremember traumatic experiences. The project addresses a significant and important problem: the role of memory distortion in Post Traumatic Stress Disorder (PTSD), a global disorder with significant personal, societal and economic costs. The aim of this project is to empirically investigate the extent, causes and triggering conditions of errors in memory for traumatic experiences; particularly exaggeration of these memories, which has been linked to poor psychological adjustment. Understanding how people exposed to trauma remember, and misremember, aspects of their experiences in ways that influence their recovery is both theoretically and practically important. Indeed, it will help us refine theory and identify possible points of intervention for PTSD sufferers.Read moreRead less
Human identification, ancient DNA and genomics. This project aims to develop and apply a novel targeted sequence capture and high throughput DNA sequencing approach to simultaneously type thousands of informative identity, ancestry and phenotype markers in a single assay to facilitate identification of unknown suspects and missing persons. DNA based human identification is both critical and central to criminal and coronial investigations, disaster-victim and missing persons identification, repat ....Human identification, ancient DNA and genomics. This project aims to develop and apply a novel targeted sequence capture and high throughput DNA sequencing approach to simultaneously type thousands of informative identity, ancestry and phenotype markers in a single assay to facilitate identification of unknown suspects and missing persons. DNA based human identification is both critical and central to criminal and coronial investigations, disaster-victim and missing persons identification, repatriation of war dead and counter-terrorism operations. Persistent technological and conceptual issues associated with the application of standard procedures to trace degraded DNA, or when profiles have no match in DNA databases, limit their application to real-world human identification problems.Read moreRead less
Killing which averts suffering: the role of norms and empathy. Abattoir workers and butchers kill animals to prepare food, farmers to cull stock, and veterinarians to alleviate suffering. Soldiers kill other humans in war, police or security guards to protect the public, and doctors to enact legal euthanasia. Research shows that these tasks can be confronting, and even traumatic. This project aims to test the processes through which people learn socially supported palliative killing to avert suf ....Killing which averts suffering: the role of norms and empathy. Abattoir workers and butchers kill animals to prepare food, farmers to cull stock, and veterinarians to alleviate suffering. Soldiers kill other humans in war, police or security guards to protect the public, and doctors to enact legal euthanasia. Research shows that these tasks can be confronting, and even traumatic. This project aims to test the processes through which people learn socially supported palliative killing to avert suffering and their neural underpinnings, with a focus on norms and empathic distress. It will focus on two core samples: veterinarians, who must euthanize animals, and health practitioners in Victoria, where legal changes will introduce ‘voluntary assisted dying’ in mid-2019. It will investigate how practitioners learn palliative killing, and what the impact is on psychological variables such as empathy and identity. It will generate new understandings of social influence around life and death decisions, provide an evidence basis to inform policy makers, and help institutions and practitioners seeking to manage distress and respond to fast-moving, controversial policy changes.Read moreRead less
How inhibition shapes human brain oscillations and working memory capacity. This project aims to investigate the link between inhibitory mechanisms, gamma oscillations and working memory in humans. Retaining information in short-term ‘working’ memory is crucial for cognition, influencing our personality and intelligence. However, the brain mechanisms underlying this process are unclear. Evidence from animal/computational research indicates that brain oscillations in high frequency ‘gamma’ bands, ....How inhibition shapes human brain oscillations and working memory capacity. This project aims to investigate the link between inhibitory mechanisms, gamma oscillations and working memory in humans. Retaining information in short-term ‘working’ memory is crucial for cognition, influencing our personality and intelligence. However, the brain mechanisms underlying this process are unclear. Evidence from animal/computational research indicates that brain oscillations in high frequency ‘gamma’ bands, which depend on neural inhibition, are critical for working memory. Mapping a path from molecules to cognition will detail how neural mechanisms shape human behavioural performance and guide efforts to enhance memory and cognitive function.Read moreRead less
The effect of temperature biofeedback on sleep and cardiac autonomic tone in young and aged adults. Peripheral heat loss is reported to promote sleep onset. To date, however, most studies examining the thermoregulatory model of sleep onset have used sedative-hypnotics with both thermoregulatory and soporific effects. We propose that a better test of a causal relationship between peripheral heat loss and sleep can be achieved by using temperature biofeedback; a promising non-invasive and non-dr ....The effect of temperature biofeedback on sleep and cardiac autonomic tone in young and aged adults. Peripheral heat loss is reported to promote sleep onset. To date, however, most studies examining the thermoregulatory model of sleep onset have used sedative-hypnotics with both thermoregulatory and soporific effects. We propose that a better test of a causal relationship between peripheral heat loss and sleep can be achieved by using temperature biofeedback; a promising non-invasive and non-drug treatment that does not have a direct effect on sleep structures. We aim to test whether increased peripheral heat loss promotes sleep onset, whether the effects are mediated by changes in autonomic tone, and whether this relationship changes with age.Read moreRead less
The biological origins underpinning adolescent sleep timing. Notwithstanding cultural and social influences, bedtimes gradually become later during adolescence, suggesting common biological contributions. Reductions in sleep pressure, delays in the 24-hour circadian rhythm, and genetic associations have been implicated, yet comprehensive prospective data from these biological sleep processes are lacking. This project aims to use periodic 'in-lab' assessments to unmask young adolescents' circadia ....The biological origins underpinning adolescent sleep timing. Notwithstanding cultural and social influences, bedtimes gradually become later during adolescence, suggesting common biological contributions. Reductions in sleep pressure, delays in the 24-hour circadian rhythm, and genetic associations have been implicated, yet comprehensive prospective data from these biological sleep processes are lacking. This project aims to use periodic 'in-lab' assessments to unmask young adolescents' circadian rhythm delay and sleep pressure which may predict naturalistic sleep behaviour in their home environment. It is predicted that adolescents who show both low sleep pressure and later circadian delay to possess later bedtimes, thus enhancing knowledge of covert biological mechanisms sabotaging healthy adolescent sleep.Read moreRead less