About DEV Joni

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Dr Joni Kemppainen | Business owner

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Joni received his undergraduate degree in physics in the University of Oulu, Finland, specialising in biophysics that describes biological systems via physics and engineering tools. The Oulu biophysics group, lead by Prof. Weckström, investigated the nervous system of insects (cockroaches, bumblebees, beetles, ...) using techniques such as patch-clamping, intracellular sharp-electrode recordings and behavioural assays. Joni was impressed by the do-it-yourself approach of research equipment and software needed to study the tiny insect brains.

After a 6 months ERASMUS exchange in the Univeristy of Tuebingen, Germany, Joni departed from Finland to join the neuroscience lab of Prof. Juusola in Sheffield, UK. The Juusola lab investigates the nervous system of insects (mainly Drosophila, also flies, bees, ...) using techniques like intracellular sharp-electrode recordings, behavioural assays and 2-photon calcium imaging. In Sheffield, Joni's original task was to investigate information processing and hyperacuity in honeybees. This work relates to the Brains on Board project, which aimed to reverse-engineer parts of the honeybee brain to create autonomously flying drones. In Sheffield, Joni prototyped a high-speed imaging system to record the recently found, local retinal micro-movements, photoreceptor microsaccades, in the insect compound eyes. This work led to 2 first-author and first-co-author research articles published in some of the leading journals.

After being awarded with a doctoral degree in sensory neuroscience in mid-2022, Joni founded his own consulting business called DEV Joni in January 2023 and continues to run its daily operations.

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