INTELLIGENCE AND BRAIN DAMAGE
Brendan A. Maher
Introduction. Our purpose in this chapter is to discuss the general nature of the concept of intelligence with a view to examining some organic implications. For the sake of convenience the chapter is organized into two sections. The first of these deals with certain conceptual issues, while the second deals with questions relative to intelligence and organic damage. Space limitations preclude a thorough examination of all the issues which will be raised, but hope is to present what appear to be some central problems at the present time.1
Our first consideration is whether there is any need for a concept of intelligence at all. We shall approach this problem by examining some behavioral phenomena which invoke the concept of intelligence as an explanatory vehicle.
Intelligence is sometimes conceived of as a limiting factor which determines the maximum value which certain responses may reach, regardless of further increases in all other variables known to improve performance. Let us take the case of an individual who has been exposed to experiences____________________