Individuals may be able to exert considerable control over their perceptual experience and environmental awareness by deliberately varying their "cognitive sets" - plans for selecting and processing information. This theme is explored and a research project, which included eleven experiments, on the effects of cognitive sets is reported. (BT)

The development of elementary school children's graphic representations of the large-scale environment in the context of the development of spatial cognition, especially Piagetian theory, is examined. The nature of children's graphic representations of space is reviewed and examined relative to development of their spatial cognition. (BT)

Discusses a study which focused on adolescents' perception of their local environment by asking 200 15-year-old students to produce free recall maps of their own local areas. Study results indicate that the individual strives towards an adjustive structuring of his environment to self-perceived societal needs. For journal availability, see SO 505…