The Role Of Attention In Modifying Neural Plasticity In The Adult Human Cortex
Funder
National Health and Medical Research Council
Funding Amount
$391,242.00
Summary
The human brain is constantly changing in response to experience. These changes, known as plasticity, are necessary to respond to new environments, to learn new skills and to recover from brain injury. This project will determine how selective attention, a process that filters sensory information in the brain, alters brain plasticity. The outcomes will inform the design of rehabilitation treatments for individuals with a brain injury.
Attention deficit hyperactivity disorde(ADHD) is the most prevalent mental disorder of childhood affecting around 7.5% of Australian school age children. The disorder is strongly genetic and causes significant impairments in academic functioning, family and peer relations with sufferers at increased risk for drug abuse. Identification and characterisation of rare mutations will enhance our knowledge of the neurobiology and advance the search for next generation drug treatments for the disorder.
Neurophysiology Of Attention Deficits After Right Hemisphere Stroke
Funder
National Health and Medical Research Council
Funding Amount
$611,742.00
Summary
Stroke is a common and debilitating condition affecting thousands of Australians per year. Problems of attention are common after right hemisphere stroke and arise from lesions to multiple different brain regions. This project utilises a unique multi-modal approach to understand the neurophysiology of sensory, attentional, decision-making and motoric aspects of deficit after right hemisphere stroke and will map these objective signatures to discrete lesion locations.
Adult Vitamin D Deficiency And Cognitive Dysfunction In A Mouse Model
Funder
National Health and Medical Research Council
Funding Amount
$419,117.00
Summary
Vitamin D deficiency is common in the Australian adult population. We provide convincing evidence that vitamin D deficiency during adulthood impacts on brain function in a mouse model. If these changes generalize to humans, then this broader program of research could have important public health implications. Vitamin D supplementation is safe and cheap is clearly an attractive candidate for public health intervention.
Neuronal Substrate Of Choice In The Rat Whisker System
Funder
National Health and Medical Research Council
Funding Amount
$405,851.00
Summary
Humans and other animals can optimise their goal-directed behaviour by linking stimuli or actions to consequent positive and negative rewards. How does an animal generate such associations, and make decisions in the natural environment where the associations are often uncertain, at times contradictory, and continuously changing? This project uses rat whisker system as an animal model to identify the neuronal basis of perceptual decision making and the role of context.
Neural Circuits For Active Vision In The Primate Cerebral Cortex
Funder
National Health and Medical Research Council
Funding Amount
$632,938.00
Summary
This project will try to understand how we use visual information to identify objects by their shape and motion, in natural situations in which the eyes are moving all the time. This will be accomplished by recording the electrical activity of brain cells while a trained animal is performing different types of tasks, such as tracking a moving object or exploring a scene with its eyes.
Do Ongoing Cognitive Demands Affect The Efficacy Of Transcranial Electrical Brain Stimulation In Young And Older Healthy Adults?
Funder
National Health and Medical Research Council
Funding Amount
$627,857.00
Summary
Transcranial direct current stimulation (tDCS) of the brain is widely used to enhance cognitive and motor function in healthy individuals and people with neurological disorders. Unfortunately, the efficacy of tDCS is highly variable between individuals. This project tests the hypothesis that ongoing cognitive processes – particularly attention – play an important role in regulating the effect of tDCS on brain function. The knowledge gained will help refine tDCS as a clinical and research tool.
Melatonin For Initial Insomnia In Stimulant-treated Pediatric ADHD
Funder
National Health and Medical Research Council
Funding Amount
$590,373.00
Summary
Does melatonin work for children with ADHD and initial insomnia? We will study children with ADHD and initial insomnia using N-of-1 trials. This is a trial in a single person, which allows them the opportunity to learn if melatonin is effective for them.We will compare the usual clinical trials (RCTs, which do not give individual results) with combined results from all the 270 patients who have done N-of-1 trials. Data from the first part of each person’s n-of-1 trial will form the RCT.
The Impact Of Faulty Relevance Filtering In Schizophrenia.
Funder
National Health and Medical Research Council
Funding Amount
$303,194.00
Summary
In schizophrenia ability to maintaining focused attention is impaired. We explore how problems in “next state” prediction contribute to problems in attention. The brain constantly predicts what state of activation it will be in next. When events match these predictions we can easily ignore them but if predictions are wrong a prediction–error can trigger attention interruptions. We will test whether problems in prediction-errors make persons with schizophrenia more susceptible to distraction.
Asking The Right Questions About Attention-deficit Hyperactivity Disorder In Children: A Cluster Randomized Controlled Trial
Funder
National Health and Medical Research Council
Funding Amount
$484,930.00
Summary
This study will evaluate the impact of a novel question prompt list (QPL) for parents of children with attention-deficit hyperactivity disorder (ADHD), on their communication with their child’s doctor, and health outcomes such as adherence. The QPL aims to increase parent question asking and information sharing between clinicians and parents; improve parents’ ADHD knowledge across the developmental lifespan of their child; and thus improve adherence to medication in children with ADHD.