When turning without vision or audition, people tend to perceive their locomotion as a change in heading relative to objects in the remembered surroundings. Such perception of self-rotation depends on sensitivity to information for movement from biomechanical activity of the locomotor system or from inertial activation of the vestibular and…

The information-processing approach and results of research on spatial ability are analyzed. Performance consists of a sequence of distinct mental operations that seem general across subjects, and can be individually measured. New interpretations for some classical concepts in psychological testing and procedures for abilities are suggested.…

The nature of the cognitive style of field articulation and its relationship to differentiation of personality are discussed. A short historical summary of research on field dependence-independence is presented, and problems of measurement, stability, and evolution of the dimension of field articulation are discussed. The connections between field…