ABSTRACT
This chapter provides a standard connectionist model of the relationship between mind and brain and presents an elaboration of that model to attempt to explain certain affective phenomena. The mind seems to be ephemeral and abstract, whereas the brain is physical and mechanical. In a typical connectionist network, there is a single weight connecting any two units. In the brain, however, psychologist know that there are many different kinds of connections and, under certain conditions; a particular unit may have more than one neurotransmitter connecting a pair of units. Imagine, as a simple case, that a child is being held in its mother's arms and that this generates a kind of "primitive" pleasure response in the child. Perhaps the key question in psychology and neuroscience is the relationship between the minds and the brain. There are numerous cases in the clinical literature of people whose deficits are incredibly specific amd difficult to explain.
