Karl Friston

Professor of Imaging Neuroscience

Karl Friston is arguably the most cited neuroscientist alive. He invented Statistical Parametric Mapping (SPM) — the method that made fMRI data interpretable — and then developed the free energy principle, which proposes that every self-organising system (cells, brains, societies) behaves as if minimising surprise.

Like Karl? The primer curates more minds like this one every week.