Neuronal Linking Of Attention, Perception And Action
Funder
National Health and Medical Research Council
Funding Amount
$586,469.00
Summary
We are able to perceive and interact with the environment around us primarily because a filter of attention selects just the objects or features of relevance in the world and helps to make appropriate motor responses. This project will study how attentional networks of the brain operate to link our perception and action. An understanding of this process is fundamental to revealing the underlying pathology in many neurological conditions where attention is impaired.
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.
Neural Circuits For Residual Vision After Damage To Striate Cortex
Funder
National Health and Medical Research Council
Funding Amount
$662,220.00
Summary
Brain cells have the ability to rearrange their connections to create alternate pathways, which compensate for loss of function following brain damage. To understand why some people become blind after damage to the visual cortex, and some don't, we will determine how neural connections change following lesions in different stages of life. The project will provide important information that may allow future development of treatments for blindness due to stroke or traumatic brain injury.
Thalamocortical Neural Circuits In Higher Order Cognitive And Sensory Processing
Funder
National Health and Medical Research Council
Funding Amount
$370,860.00
Summary
Schizophrenia, depression and dementia are devastating disorders with problems in thinking and sensory perception, but the neural circuits causing these symptoms are not known. I will use new optical and genetic tools in mice to identify the cortical and subcortical circuits required for complex touchscreen tasks, the same tasks to assess patients. Identification of neural circuits that underlie clinical symptoms will increase our understanding of these disorders and improve treatments.
Developing A Pathophysiological Model For Attention Deficit Hyperactivity Disorder: A Path To Biomarker Discovery
Funder
National Health and Medical Research Council
Funding Amount
$314,644.00
Summary
Despite the efficacy of stimulant medication in treating attention deficit hyperactivity disorder (ADHD), we lack mechanistic accounts of the neuropathology of ADHD. A major barrier is the lack of human disease models representing clinical symptoms. The derivation of a novel, cell-based ADHD model proposed in this project will shed new light on the physiological bases of ADHD and be a rich resource for biomarker discovery
Neuronal Activity And Functional Magnetic Resonance Imaging (fMRI)
Funder
National Health and Medical Research Council
Funding Amount
$367,561.00
Summary
How does brain activity relate to perception and behaviour? How does functional magnetic resonance imaging (fMRI) of the brain, which measures changes in blood oxygen, relate to the activity of single cells? I will address these questions, comparing electrical measurements of single cells and functional images, and advance our understanding of the brain in health and disease.
Visuomotor Integration In The Medial Parietal Cortical Areas
Funder
National Health and Medical Research Council
Funding Amount
$665,163.00
Summary
This project will find out how the electrical activity of brain cells is used to direct the arms to a specific position in the space around a person's body. By understanding the code used by brain cells to perform this control of the arms, we will be able to "read" the brain activity directly, and use it to allow control of artificial arms by people who have been paralysed or had amputations.
Developmental Plasticity In The Nonhuman Primate Visual Cortex
Funder
National Health and Medical Research Council
Funding Amount
$464,417.00
Summary
A phenomenon that has puzzled many for a number of years is why damage to the visual brain during infancy has far less of an impact on visual capacity than the same lesion suffered later in life. This project hopes to uncover this mystery and see how brain 'wiring' is altered to compensate.
Promoting Recovery After Neurotrauma: Basic Science, Clinical Trials And Community Engagement
Funder
National Health and Medical Research Council
Funding Amount
$356,269.00
Summary
To promote recovery after neurotrauma by controlling the spread of damage and by maximising function in surviving circuits. The work involves animal models & nanotechnology as well as clinical rehabilitation trials in humans with spinal cord injury.
Molecular And Cellular Changes Following A Cortical Injury: What Role Do They Play In Regeneration?
Funder
National Health and Medical Research Council
Funding Amount
$499,625.00
Summary
Damage to the visual areas of the brain is common after, for example stroke, neurotrauma or hypoxia. The injury often manifests in the form of a scar caused by a specific type of brain cell (astrocyte). This scar acts as a barrier to the cells which transmit information (neurones), preventing re-establishment of connectivity, thus functional recovery. We will see if we can reduce this scar and enhance re-connectivity after injury by blocking some of the molecules that brain cells express.