Terrence Sejnowski employs computer modeling techniques to unravel the intricate functioning of the brain. Unlike traditional approaches focusing on neuron connectivity, Sejnowski aims for a functional map of the brain's processes, understanding how groups of cells contribute to various functions, from perception to memory recall. By recording cell activity and analyzing brain slices, he refines computational models that depict information storage for different activities. These models offer insights into encoded information, required molecules, and signal pathways, while also shedding light on how diseases like schizophrenia or Parkinson's may impact these patterns.