Facial Recognition

A network of brain areas are nvolved in facial perception with at perhaps 20,000 neurons involved. These areas appear to include at least the amygdala, the hippocampus, the frontal lobe, the parahippocampal gyri located in the medial temporal lobe, the fusiform face area (FFA), and the occipital face area (OFA). The FFA and the OFA are in close proximity in the occipital lobes. However, they process different aspects of facial recognition. The OFA is responsible for identifying parts of faces—noses, mouths, and eyes. The FFA is responsible for processing the whole face. It is also in charge of associating a face to certain parts of that person's identity, like name and occupation.

Facial Recognition and the Brain | Let's Talk Science (letstalkscience.ca)

Thompson, P. (1980). Margaret Thatcher: A new illusion. Perception, 9(4), 483–484. DOI: 10.1068/p090483