[1] He is considered to be the foremost migraine expert of the Netherlands, as well as one of the six top scientist in the field worldwide.
[1] Ferrari was appointed as professor of neurology at Leiden in 2002, he still works as practising neurologist in the university hospital.
[1] Shortly after winning the prize Ferrari stated to want to spend the money on research on glia cells.
[5] As there was no fourth Spinoza Prize awarded in 2009, Ferrari and his co-winners Albert van den Berg and Marten Scheffer asked the NWO to reward them the remaining prize money, which they would spend on a collaborative research effort.
[7][8][9] The paper claimed that a critical tipping point of neurons started a migraine attack.