As a Research Fellow in Neuroeconomics, Dr Dragan Rangelov investigates human sensory perception, decision-making and memory. His work explores how the brain processes and stores information that leads us to make decisions in all aspects of life. He does this by using techniques designed to measure and record brain activity, such as electroencephalography (EEG) and functional magnetic resonance imaging and by identifying patterns of neural activity associated with external sensory stimuli.

In this conversation, Dragan delves into various intriguing topics, including:

• The brain systems responsible for decision-making
• How neuroeconomics explores economic decision making
• Game theory and how it provides a platform for neuroeconomic studies
• Why we choose to purchase one thing over another
• The idea behind establishing a neuroeconomics research profile at UQ

Robyn Hilton and Allison Scifleet may never have become firm friends had it not been for their involvement in fundraising for dementia research. Both women understand what it is like to care for a loved one with dementia. With more than 421,000 Australians living with dementia and no cure (yet), Robyn and Allison are determined to raise awareness in the community and vital funds for research. All while having as much fun as possible!  

 In this delightful conversation, Robyn and Allison share:  

• What inspired one woman’s annual tribute to her late husband 
• The serendipitous moment that led the other to QBI 
• The challenges of caring for someone with dementia 
• How bringing dementia out of the shadows helps families 
• How they tackle fundraising fatigue and the flow-on effect of doing good. 

 Related resources 

2024 QBI Lexus Alzheimer's Jazz Gala 

QBI and Lexus of Brisbane High Tea 

What is Alzheimer’s disease?  

What is dementia? 

Ultrasound therapy shows promise as a treatment for Alzheimer’s disease 

Dementia Australia  

What inspired the creation of the Queensland Brain Institute (QBI)? And how did QBI become one of the leading neuroscience research centres in the world? On our 20th anniversary, QBI’s inaugural Director, Emeritus Professor Perry Bartlett, and its current Executive Director, Professor Pankaj Sah, take us back to 2003, an exciting and optimistic time for Australian neuroscience, when it all began. They share memories and insights into QBI's origins, what and who has shaped our research over the years, and the community’s vital role in inspiring and sustaining QBI.  

In this engaging conversation, Pankaj and Perry delve into:   

• Why and how QBI was created 
• How the Institute grew from three labs to over 30 
• What’s changed in neuroscience research in 20 years 
• The power of community support  
• What lies ahead for neuroscience  

Stroke is one of Australia’s biggest killers, with more than 445,000 Australians living with its impacts. Stroke is common, is not always preventable and can happen to anyone at any age. QBI’s Dr Matilde Balbi and her team combine multiple approaches, including in vivo imaging, brain stimulation and AI-driven, individually tailored recovery paradigms, to study the brain’s recovery from stroke. Their goal is to identify and harness intrinsic neuroprotective mechanisms to improve stroke treatments.  

 In this engaging conversation, Matilde explores:   

  What happens in the brain after a stroke 

• How her team records and tracks neuronal activity 
• Why using animal models is a huge advantage  
• How stroke therapies are evolving with technology 
• Why she focuses her attention on the acute phase of a stroke 

QBI researcher Dr Nela Durisic is fascinated with how the brain coordinates electrical activity and how faulty electrical communication can lead to brain disorders like epilepsy. By observing the architecture and function of single molecules and their intricate connections, the Durisic lab aims to discover what leads to genetic epilepsy and uncover new ways to treat it. This knowledge may also advance our understanding of other brain disorders, including depression, addiction and autism.  

 In this conversation, Nela dives into intriguing topics, including:  

•  The triggers and genetic causes of epilepsy 
• The different roles of excitatory and inhibitory neurons 
• What happens in the brain before and during a seizure 
• How microscopy and organoids are advancing her lab’s research 
• Potential new directions for the treatment of genetic epilepsy  

QBI researcher Professor Frederic Meunier is passionate about using highly innovative technology to discover how our brain cells communicate. His lab uses advanced nanoscale imaging (super-resolution microscopy) to observe single molecules in living neurons as they perform their function. In collaboration with mathematicians, the Meunier lab is analysing how small mutations can affect the nanoscale dynamics of single proteins and their function to help us understand the origins of brain disorders and diseases.     

 In this conversation, Fred traverses far-ranging topics, including:   

• Our brain’s chaotic inner cellular environment  
•  How imaging technology is evolving to accelerate discoveries  
• Why video games led to a new spatiotemporal data analysis approach  
• What Botox can teach us about the function of the synapse between two brain cells  
• Why pharmaceutical companies are starting to invest in single molecule imaging  

Boots, beanies and all, QBI researcher Dr Adam Walker is in the fight to find a cure for motor neurone disease (MND). His team uses genetic editing techniques and rapidly advancing technology to study what’s happening at the early onset of disease. By understanding the biological processes that cause MND, they hope to design new therapies that prevent or halt its progression.  

In this inspiring conversation, Adam explores:  

•  How the brain initiates movement  
• Why expensive muesli can help explain MND 
• The protein TDP-43 and its role in the death of motor neurons 
• The exciting potential for targeted MND therapeutics  
• Philanthropy’s vital role in blue sky MND research   

How do we make choices? And what happens in our brain when we do? Cognitive Neuroscientist Professor Jason Mattingley and his team study human brain activity and structure and how people pay attention, prioritise information and decide. With adolescence being a time of great change, the team is fascinated with how young people assess risk and develop an understanding of what’s at stake. It’s one of several studies the team conducts to understand the complex brain processes that give rise to human behaviour.  

In this engaging conversation, Jason delves into:   

• Why it’s important to study the decision-making of healthy teenagers  
• How decision-making changes when you’re stressed and as you age 
• The science behind following your gut instinct 
• Whether changing your mind is a good thing 
• What happens when there is no ‘right’ answer?  

Dr Nathalie Dehorter and her team study interneurons (the neurons controlling the excitation-inhibition balance in the central nervous system) during brain development and in disorders like autism, schizophrenia and Parkinson’s disease. Nathalie aims to identify early changes in neuronal activity and connectivity that give rise to impairment in the adult brain. She hopes that a better understanding of these processes may, one day, lead to new therapies tailored for a person’s age and gender.   

 In this brief conversation, Nathalie explains:   

•  What mouse models of autism can teach us about the human condition 
• How early brain changes may lead to autism  
• The mechanisms common to autism and schizophrenia 
• When the team hopes to move into clinical trials  
• Why she chose QBI as her research home 

Professor Peter Nestor is a clinician-researcher interested in memory and cognition. As a doctor, he diagnoses people living with neurodegenerative diseases, such as Alzheimer's. By studying patients, he hopes to enhance our understanding of the brain areas most vulnerable to neurodegeneration to improve diagnosis and therapies.

In this fascinating conversation, Peter delves into:

• Why we don't remember every moment of our lives
• The difference between episodic and semantic memory
• What factors make us remember things 
• How our memory changes as we age
• Why it's important to enjoy every day