Need for theory in studies of augmentative and alternative communication

Abstract

In this paper, concern is expressed about the ad hoc nature of research into the use of augmentative and alternative communication (AAC) with persons with mental retardation. Some examples are given of how existing psychological theory can be used to guide research into AAC, but it is also emphasized that researchers should be critical of their findings when adopting different theoretical standpoints. The argument that meaningful research can only be carried out within the framework of a coherent psychological theory of mental retardation is then developed. This point is reinforced by a demonstration of how recent advances in cognitive-developmental theory could be used as a basis for further research in AAC.

• autism
• iconicity
• manual signs
• memory
• mental retardation
• symbolic play
• theory
• unaided approaches