The competition is held in memory of scientist Dr Jonathan Stevens, who had Parkinson's and passed away at the age of 34 in December 2013.
The image shows a section of a Zebrafish brain where the brain cells have been stained green. Zebrafish are used to study a protein in Parkinson’s called alpha-synuclein (coloured red). Using these fish, we can see how the alpha-synuclein protein may affect the survival of brain cells.