Early Indicators Of Noise Injury: Are Decreased Auditory Processing Skills Evident In Noise-exposed Adults Prior To Diagnosis Of Hearing Loss?
Funder
National Health and Medical Research Council
Funding Amount
$367,605.00
Summary
Recent research indicates that noise-exposed individuals with similar hearing thresholds to non-noise exposed counterparts are more likely to have diminished temporal and spectral auditory processing abilities. This research aims to determine the relationship between noise exposure levels and auditory processing difficulties; the influence of musical training in ameliorating these difficulties; and a neurological model of causation, operation and possible remediation of these difficulties.
Organization Of Descending Auditory Projections From Inferior Colliculus To Cochlear Nucleus
Funder
National Health and Medical Research Council
Funding Amount
$473,121.00
Summary
Sensory information gains awareness by ascending brain pathways to reach consciousness. Descending projections, however, have grown in importance because of implications for feedback management of ascending signals. Studies of these pathways will provide insight into auditory processing with respect to selective volume control, calibration adjustments between the two ears, and the extraction of signals from background noise. The data could lead to new strategies for treating hearing disorders.
Studies Of The Effects Of Asymmetric Hearing Loss On The Brain
Funder
National Health and Medical Research Council
Funding Amount
$920,076.00
Summary
Hearing loss impairs the normal development and maintenance of auditory pathways. Irreversible pathologies persist when hearing is not restored in a timely manner. While cochlear implantation is the accepted treatment for profound sensorineural hearing loss, there is significant variability in outcomes. Some of this variability is linked to the degree of hearing asymmetry. Thus, we propose to study brain changes in the auditory system that accompany asymmetric hearing impairment.
Predicting Language Skills From Early Auditory Speech Discrimination In Infants With Hearing Loss: Implications For Early Management And Intervention
Funder
National Health and Medical Research Council
Funding Amount
$706,113.00
Summary
Now that newborn hearing checks are available, hearing loss can be picked up soon after birth and hearing aids are fitted shortly after. Although procedures exist for checking that the devices make sounds audible, there is no way to evaluate their effectiveness for supporting a child’s auditory discrimination. This study aims to 1) develop new clinical tools for assessing infants’ auditory discrimination, and 2) determine whether early discrimination predicts spoken language at 3 years of age.
Brain Connectivity Imaging Markers To Confirm Diagnosis For Bipolar Vs. Unipolar Depression – A Connectome Approach.
Funder
National Health and Medical Research Council
Funding Amount
$434,369.00
Summary
Differentiating Bipolar disorders from Unipolar Depression is a major clinical challenge. This misdiagnosis hinders optimal clinical care and has many deleterious consequences such self-harm, increased chances of suicide, poor prognosis, and greater health care costs related to this disorder. This project will provide urgently-needed advance in accurate identification of Bipolar disorders using Magnetic Resonance Imaging and remove one of the key obstacles to accurate diagnosis.
Australian Longitudinal Study Of Heroin Dependence: An 18-20yr Prospective Cohort Study Of Mortality, Abstinence, And Psychiatric And Physical Health Comorbidity
Funder
National Health and Medical Research Council
Funding Amount
$1,210,319.00
Summary
The burden associated with heroin dependence is undeniable. But little is known about the natural history and long-term course of heroin dependence; knowledge that is critical for informing the development of new treatment interventions, health care planning and service delivery. We propose to extend our study of 615 Australians with heroin dependence, recruited in 2001-2002, to 18-20 years follow-up to answer critical questions about the long-term impact of this condition.
The Role Of The Orbitofrontal Cortex In Disorders Of Response Inhibition
Funder
National Health and Medical Research Council
Funding Amount
$515,488.00
Summary
We will investigate the role of the orbitofrontal cortex (OFC) in decision-making, particularly the effect of hyperactivity in the medial vs. ventrolateral orbitofrontal cortex on decision-making. Hyperactivity in these structures has been linked to obsessive compulsive disorder and, in line with the distinct functions of the different regions of OFC, we develop and test a novel hypothesis as to the psychological and neural bases of the obsessions and compulsions distinctive to that disorder.
Motor problems, ranging from clumsiness to cerebral palsy, are one of the most common adverse outcomes in children born early. This study will investigate the motor development of children born <30 weeks’ gestation compared with peers born at term from birth to 5 years. We will determine whether early clinical evaluations or neuroimaging in the newborn period can predict later motor impairment at 5 years to be able to identify those who will benefit most from early intervention.
The Validation Of A Culturally-specific Measure To Identify Depression In Aboriginal And Torres Strait Islander People With Or Without Chronic Disease
Funder
National Health and Medical Research Council
Funding Amount
$658,971.00
Summary
The project aims to determine whether a short, free-to-use, questionnaire about depression that has been adapted for use with Aboriginal and Torres Strait Islander people, accurately identifies depression in this population. Specifically we aim to test whether this measure is suitable for use in primary care settings with Aboriginal and Torres Strait Islander people with or without chronic disease.
The Biology Of Risk For Bipolar Disorder: Genetic Effects In A High-risk Longitudinal Study
Funder
National Health and Medical Research Council
Funding Amount
$856,412.00
Summary
Bipolar disorder is a severe mood disorder affecting over 350,000 Australians. Some children of bipolar disorder patients will also become ill, although currently we have no tools to predict which of these genetically at-risk young individuals will eventually develop symptoms. This study will use genetic information plus brain structural changes to predict which at-risk individuals are likely to become ill. This study will help elucidate early clinical and biological markers of bipolar disorder.