ABSTRACT

In Chapter 2 we considered some of the processes involved in perception and attention, and learned a little about how we construct an internal representation of the world around us. Given the complexity of these processes, it is not surprising to learn that brain damage can disrupt perception and attention. However, what is surprising is the range and nature of the deficits that can be observed. By systematically studying these deficits, we are able to learn much about the processes that must be occurring in the intact brain. The emphasis in this chapter is to study the pattern of disorders, and relatively little attempt has been made to locate functions within the brain. I have taken the view that we are interested in how we perceive not where we perceive.