Here are some of the studies I've worked on.
Let me know if you have trouble accessing any of them.
Hi, I’m Yohan, a neuroscientist with an insatiable thirst for knowledge about the universe. I'm particularly fascinated by how brains learn and adapt to everything the world throws at them. I’m just as curious about the rest of biology and physics as I am about neural circuits, and I love finding links between ideas from different fields. Outside of research, you’ll usually find me in the surf, on the track sprinting, or somewhere with a camera, trying to capture some small aspect of the beauty of nature.
My current neuroscience research spans cognitive training, multitasking, decision-making, and attention, drawing on diverse methodologies that range from pharmacological interventions and live neuronal recordings, to electrical brain stimulation and ultra-high resolution MRI. This cross-species, multi-modal approach allows me to study how neural circuits adapt and optimise for learning across different scales of brain function.
Stimulating Prefrontal Cortex Facilitates Training Transfer by Increasing Representational Overlap
Summary: This study shows that prefrontal cortex brain stimulation enhances the transfer of training benefits to new tasks by increasing the similarity of neural representations between tasks.
Neurochemical Predictors of Generalised Learning Induced by Brain Stimulation and Training
(Journal of Neuroscience, 2024)
Summary: This study identifies that higher baseline levels of glutamate in the prefrontal cortex predict greater improvements in cognitive performance across various tasks following combined brain stimulation and multitasking training.
Endogenous cannabinoids in the piriform cortex tune olfactory perception
Summary: The brain's natural cannabinoid system in the piriform cortex fine-tunes the neural coding of smells, dynamically shaping olfactory perception.
Neural substrates of individual differences in learning generalisation via paired brain stimulation and multitasking training
Summary: Individual differences in the multiple-demand system predict the extent of learning generalisation following multitasking training paired with brain stimulation.
Individual differences in decision strategy relate to neurochemical excitability and cortical thickness
(Journal of Neuroscience, 2023)
Summary: Variations in decision-making strategies are linked to differences in frontal cortical thickness and the balance of excitatory and inhibitory neurochemicals.
tDCS augments decision-making efficiency in an intensity dependent manner: A training study
Summary: This study demonstrates that transcranial direct current stimulation (tDCS) applied to the prefrontal cortex enhances decision-making efficiency during training, with the degree of improvement varying according to the intensity of the stimulation.
On the relationship between GABA+ and glutamate across the brain
Summary: This study investigates the relationship between GABA+ and glutamate concentrations across various brain regions, revealing that these neurotransmitters exhibit region-specific associations rather than a uniform balance throughout the brain.
The influence of tDCS intensity on decision-making training and transfer outcomes
(Journal of Neurophysiology, 2021)
Summary: This study found that applying transcranial direct current stimulation (tDCS) at 1.0 mA during multitasking training significantly improved performance and facilitated the transfer of skills to untrained tasks, whereas intensities of 0.7 mA and 2.0 mA were less effective.
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