micromapping means the act of creating (various types of) extremely detailed maps of a small area.
Etymology
From micro- + mapping.
noun
- The act of creating (various types of) extremely detailed maps of a small area.“Merzenich was an expert in a technique called "micromapping", a precise but time-consuming way of finding which parts of the brain responded to external stimuli, using extremely small electrodes that measure the electrical activity of a single neuron. Merzenich used macaque monkeys, measuring neuronal activity as he tapped different parts of the monkey's hand, in order to see which areas of it sti”