Centre For Clinical Research Excellence In Anxiety And Neuroscience
Funder
National Health and Medical Research Council
Funding Amount
$2,007,200.00
Summary
This Centre will bring together Australia's leading anxiety and neuroscience researchers to develop, evaluate, and disseminate better treatments of anxiety. Epidemiological studies indicate that anxiety disorders are common, with lifetime prevalence estimated to be as high as 15% (1). These disorders share the features of excessive physiological arousal in response to feared stimuli, and this leads to pervasive avoidance that has a debilitating impact on people's lives. In addition, anxiety is o ....This Centre will bring together Australia's leading anxiety and neuroscience researchers to develop, evaluate, and disseminate better treatments of anxiety. Epidemiological studies indicate that anxiety disorders are common, with lifetime prevalence estimated to be as high as 15% (1). These disorders share the features of excessive physiological arousal in response to feared stimuli, and this leads to pervasive avoidance that has a debilitating impact on people's lives. In addition, anxiety is often present as a co-morbid feature of other major disorders, such as schizophrenia, substance use, and depression. Anxiety is one of the world's major health burdens; it costs $44 billion per year in the United States. Health agencies around the world are now putting unprecedented resources into understanding the neural bases of anxiety and its reduction. Building on recent advances in the neuroscience of anxiety, the Centre will expand the capacity for neurotransmitter modulation during therapy to reduce anxiety disorders. By extensive training programs with community clinicians, the Centre will conduct large-scale community trials to assess effectiveness of new approaches. The Centre will foster a new generation of neuroscience researchers and clinicians who are skilled in translating basic science findings into clinical practice.Read moreRead less
Enhanced Treatment For Social Phobia Through The Incorporation Of Attentional Re-training.
Funder
National Health and Medical Research Council
Funding Amount
$465,162.00
Summary
Social phobia is a serious difficulty that can cause tremendous interference in an individual's life. Social phobia can interfere with an individual's social and romantic life, work and study aspirations, and even increase medical and other psychological problems. Psychological programs to help individuals manage their anxiety have been developed and shown to lead to relatively strong positive outcomes. Recent theoretical understanding has suggested that one maintaining factor in social phobia m ....Social phobia is a serious difficulty that can cause tremendous interference in an individual's life. Social phobia can interfere with an individual's social and romantic life, work and study aspirations, and even increase medical and other psychological problems. Psychological programs to help individuals manage their anxiety have been developed and shown to lead to relatively strong positive outcomes. Recent theoretical understanding has suggested that one maintaining factor in social phobia may be these people's tendency to focus onto negative information. In some exciting developments, several researchers have shown that simply training people with social phobia to focus their attention away from negative information, with no other treatment components, can produce a marked change in their fears. Therefore it makes sense that incorporating these methods into current standard treatment packages, may increase their effectiveness. The current study aims to compare the current best practice treatment package for social phobia with a combination of this package plus the recent attention re-training methods. It is expected that incorporating attention re-training into standard treatment with significantly improve its effects.Read moreRead less
A Brain-Based Measure Of Anxiety Sensitivity: Validation Of A Novel Intermediate Phenotype With Psychophysiologically-Informed Neuroimaging
Funder
National Health and Medical Research Council
Funding Amount
$271,930.00
Summary
Excessive anxiety is disabling, such that people who suffer from a clinical anxiety disorder are often crippled by overwhelming emotional and physical symptoms. We will use sophisticated brain imaging technology to understand how certain brain areas produce feelings of anxiety, including a common fear of arousal related bodily sensations. This work is expected to enhance our basic understanding of the brain basis of anxiety symptoms and may inform new treatment options with biological rationale.
This project maps and manipulates the brainstem mechanisms causing expression of fear. It does so using brain cell type and brain circuit specific mechanisms.
The Prevention Of Anxiety And Related Disorders: Long Term Follow-up Of Temperamentally At-risk Preschoolers.
Funder
National Health and Medical Research Council
Funding Amount
$391,476.00
Summary
Anxiety and related disorders such as depression provide a tremendous cost to the individual sufferer and to Australian society. While previous research has focussed on treatment of these conditions, little work has addressed the possibility of preventing these disorders before they interfere with an individual's life. There is growing evidence that children who are shy, withdrawn and inhibited at a very young age are more likely than other children to develop anxiety disorders in later childhoo ....Anxiety and related disorders such as depression provide a tremendous cost to the individual sufferer and to Australian society. While previous research has focussed on treatment of these conditions, little work has addressed the possibility of preventing these disorders before they interfere with an individual's life. There is growing evidence that children who are shy, withdrawn and inhibited at a very young age are more likely than other children to develop anxiety disorders in later childhood and a variety of related disorders in adulthood. In a previous NHMRC-funded grant, we have developed a brief parent education program to modify this personality style in young children. Early results are very promising and it appears that we have been able to help these withdrawn children to become more outgoing. This next proposal aims to follow these children over the coming years to see whether they are also less likely to develop mental health problems than children whose parents have not received the educational program are. We will be observing the children in a laboratory setting and at school at three, yearly intervals. At each point, we will compare withdrawn children whose parents have gone through the education program with those who haven't.Read moreRead less
Enhancing Treatment Effectiveness In Acute Stress Disorder
Funder
National Health and Medical Research Council
Funding Amount
$235,330.00
Summary
Posttraumatic stress disorder (PTSD) is the most common psychiatric condition to develop after trauma. Early intervention of PTSD following a trauma is indicated because chronic PTSD can be resistant to treatment. Early intervention is possible because acute stress disorder immediately after a trauma identifies those people who will develop chronic PTSD. Although cognitive behaviour therapy of acute stress disorder can effectively prevent PTSD in many cases, many people do not benefit from this ....Posttraumatic stress disorder (PTSD) is the most common psychiatric condition to develop after trauma. Early intervention of PTSD following a trauma is indicated because chronic PTSD can be resistant to treatment. Early intervention is possible because acute stress disorder immediately after a trauma identifies those people who will develop chronic PTSD. Although cognitive behaviour therapy of acute stress disorder can effectively prevent PTSD in many cases, many people do not benefit from this treatment because this treatment involves exposure to distressing memories and emotions, and this contributes to many people dropping out of treatment. This project aims to extend the utility of early intervention following trauma by assessing approaches that can be used by most trauma survivors. The project compares early intervention with either exposure, cognitive therapy, combined exposure and cognitive therapy, or supportive counseling. All therapy will be conducted in the initial four weeks and will comprise 6 sessions. Assessments will be conducted posttreatment, six-months follow-up, and one-year follow-up. The outcomes of this project will have significant public health benefits because they will lead to increased treatment effectiveness for acutely traumatized people, and will markedly reduce the incidence of PTSD in the community.Read moreRead less
The Effectiveness Of An Early Intervention And Prevention Strategy For Anxiety And Depressive Disorders.
Funder
National Health and Medical Research Council
Funding Amount
$119,924.00
Summary
Adult anxiety and depressive disorders are common, cause significant distress to sufferers and cost to the community, and generally begin in childhood. Prior research has shown that children who exhibit higher than average levels of anxiety in their late childhood are at risk for developing anxiety and depressive disorders as they grow older. However if at risk children can learn skills to better manage their anxiety, the chance that they will continue to experience significant anxiety problems ....Adult anxiety and depressive disorders are common, cause significant distress to sufferers and cost to the community, and generally begin in childhood. Prior research has shown that children who exhibit higher than average levels of anxiety in their late childhood are at risk for developing anxiety and depressive disorders as they grow older. However if at risk children can learn skills to better manage their anxiety, the chance that they will continue to experience significant anxiety problems is greatly reduced. For example, school-based skills-building programs run by specialist mental health professionals have been shown to reduce the rate of existing anxiety disorder and prevent the onset of new anxiety disorders across middle to late childhood and early adolescence. The proposed study will aim to show that a school-based program, run by school counsellors, can prevent the development of anxiety and depressive disorders in late adolescence. In other words, the aim is to demonstrate whether the benefit of the program can be achieved across the wider school-aged population when conducted wholly within the education sector. This outcome is significant, not only in its potential to reduce distress to a large number of adolescents and their families, but in reducing costs to the community in terms of reduced disability and reduced need for health care and specialist mental health treatment.Read moreRead less
The Extinction Of Conditioned Fear And Its Implications For Cue Exposure Therapy
Funder
National Health and Medical Research Council
Funding Amount
$322,430.00
Summary
This project studies extinction of Pavlovian conditioned fear reactions in rats. Extinction of these reactions is an animal model for exposure therapy used in the treatment of anxiety disorders in people. In exposure therapy, the patient, aided by the clinician, confronts trauma-related cues in the absence of any overt danger. The intention of this therapy is to reduce the ability of the trauma-related cues to provoke the fear reactions that are undermining the patient's quality of life. In Pavl ....This project studies extinction of Pavlovian conditioned fear reactions in rats. Extinction of these reactions is an animal model for exposure therapy used in the treatment of anxiety disorders in people. In exposure therapy, the patient, aided by the clinician, confronts trauma-related cues in the absence of any overt danger. The intention of this therapy is to reduce the ability of the trauma-related cues to provoke the fear reactions that are undermining the patient's quality of life. In Pavlovian conditioning, subjects (typically rats) are exposed to a signaling relation between an initially neutral stimulus (e.g., a noise) and a feared outcome (e.g., foot shock). When later repeatedly exposed to the initially neutral but now feared stimulus (the noise) in the absence of the feared outcome, the fear reactions it acquired progressively decline until eventually it fails to elicit any such reactions. The fear reactions are said to have been extinguished. There has been significant progress in understanding the psychological processes and neural mechanisms underlying the acquisition of fear reactions, but much less is known about the processes and mechanisms underlying the extinction of these reactions. The project has two general objectives. The first is to determine the conditions of extinction training that promote long-term loss of fear reactions. The second objective is to determine how the brain controls this extinction of learned fear. Achieving these aims will be significant for two reasons. First, it will contribute to understanding the mechanisms by which animals (including people) learn to adjust their behaviour to bring it into line with the current relations that exist between events in the world. Second, it will provide important information about how such adjustment is facilitated or impaired across extinction training and, thereby, contribute towards understanding both the successes and failures of cue exposure therapy for fear-related disorders.Read moreRead less
Anxiolytic And Anti-epileptogenic Roles Of Brain Protease-activated Receptor (PAR2)
Funder
National Health and Medical Research Council
Funding Amount
$262,073.00
Summary
Epilepsy and anxiety are two of the most common chronic brain conditions world-wide, affecting hundreds of millions people worldwide, and are associated with a considerable burden of disability, impaired quality of life, a range of co-morbidities (eg physical injury, psychiatric disorder) and premature death. People who develop epilepsy have often experienced an initial insult (e.g. head trauma, brain inflammation, febrile convulsions) and then live for months to years before seizures develop. T ....Epilepsy and anxiety are two of the most common chronic brain conditions world-wide, affecting hundreds of millions people worldwide, and are associated with a considerable burden of disability, impaired quality of life, a range of co-morbidities (eg physical injury, psychiatric disorder) and premature death. People who develop epilepsy have often experienced an initial insult (e.g. head trauma, brain inflammation, febrile convulsions) and then live for months to years before seizures develop. This latent period between the initial insult and the onset of recurrent seizures is referred to as epileptogenesis - the transformation of the brain from the non-epileptic to the epileptic state in which a vicious cycle develops where 'seizures beget seizures.' This process cannot currently be prevented once it begins. A similar process has been implicated in the development of chronic anxiety, with an initial early life brain insult or stress and the emergence of the condition later in life. There are no treatments to prevent or cure either disease, only drugs to alleviate the symptoms. We, however, have now discovered that a small protein, called, SLIGRL that activates cell detector molecules called PAR2 which are involved in controlling brain inflammation, inhibits epileptogenesis and anxiety in well-defined rodent models. In the experiments outlined in this grant, we will confirm these very exciting preliminary findings in other models of epileptogenesis and anxiety, as well as determine the underlying mechanisms of the protection. We will also examine if SLIGRL helps prevent a peripheral inflammatory diseases - colitis - by an anti-inflammatory action in the brain similar. The main outcome of our study will be important proof-of-principle data for the development of drugs like SLIGRL for clinical use for the treatment of epilepsy, anxiety and possibly other brain diseases where inflammation plays an important role.Read moreRead less