Answer to Question 1
People with severe problems, either because of brain damage or because they developed fewer connections, may have prosopagnosia, meaning an impaired ability to recognize faces. People with prosopagnosia can read, so visual acuity is not the problem. They recognize people's voices, so
their problem is not memory (Farah, Wilson, Dain, & Tanaka, 1998). Furthermore, if they feel clay models of faces, they are worse than other people at determining whether two clay models are the same or different (Kilgour, de Gelder, & Lederman, 2004). Their problem is not vision in
general, but something that relates specifically to faces.
Answer to Question 2
a