They are decoding it using their pre-computed lookup table. This is a very valid approach, since the fMRI signal is both slow and low resolution. It would be aw

They are decoding it using their pre-computed lookup table. This is a very valid approach, since the fMRI signal is both slow and low resolution. It would be awesome to be able to record individual neuron firing en masse and in vivo, but we are not there yet.