Affordable Access

Publisher Website

The Relation Between Stimulus Analyzability and Perceived Dimensional Structure11The research and preparation of this chapter was supported by Research Grant HD 04320 from the United States Public Health Service. We are deeply grateful to June L. Shepp for her fine assistance in the conduct of the experiments and her technical expertise in the preparation of the figures and tables. We are also indebted to Christine K. Ho for her very able computer programming and her assistance in the conduct of the experiments, and to Margaret Furey for her meticulous typing of the manuscript.

Elsevier Science & Technology
DOI: 10.1016/s0079-7421(08)60008-0
  • Mathematics
  • Philosophy


Publisher Summary This chapter discusses the relation between stimulus analyzability and perceived dimensional structure. The combination of integral dimensions yields stimuli that are phenomenologically fused or wholistic, whereas the combination of separable dimensions yields stimuli with perceptually distinct components. Operationally, integral dimensions produce a Euclidean metric in direct distance scaling, classifications based on a distance or similarity structure in a restricted classification task, a redundancy gain in speeded classification when the dimensions are correlated, and interference in a filtering task when the dimensions are orthogonal and selective attention is required. Some dimensional combinations meet these operational criteria extremely well; value and chroma of a single Munsell chip uniformly produce results that are consistent with the operational definition of integral dimensions and, similarly, size of circle and angle of radial line are clearly separable. The evaluation of the subjective independence of dimensional combinations by the algebraic properties of the additive difference model is important in drawing the distinction between integral and separable dimensions.

There are no comments yet on this publication. Be the first to share your thoughts.