The answer is that in general they cannot be specifically matched up. Or, as neuroscientists would prefer, brain operations happen in parallel during any particular nameable activity however simply we can describe that activity. Greenfield then goes on to look at the brain magnified many billions of times and is perhaps most interesting here. We meet the inhabitants of the brain, its citizens, the neurons. There are fifty different shapes of neurons and their dendrites grow out of them in many other different formations.
All human activity depends on and arises out of connections between neurons.
Electrical impulses transmit messages inside the neurons and chemicals transmit them across the synapse. Those neurons that do not work die. In the fourth chapter the development of the brain from conception is described, as are various disorders which can beset it, and the fifth and final chapter examines memory. It is in the concept of memory that Greenfield believes the clue to individuality, to mind, to consciousness, to the 'physical basis for our minds' must lie. But it is no more than a clue and a very opaque one at that.