W. C. Gogel's analysis of the problems associated with scalar perceptions is outlined with particular reference to the measurement of perceived size and distance (perceived extent). The results of a previous experiment of the authors concerned with the perception of angular extent are used to evaluate Gogel's analysis critically. It is concluded that his propositions and experimental results lack generality. In particular there are severe problems associated with the application of calibration equations to response indices of perceived extent under reduced- or minimal-cue conditions of observation. However, there is no doubt about the significance of the problems raised by Gogel's analysis.
References
1.
GogelW. C.The measurement of perceived size and distance. In NeffW. D. (Ed.), Contributions to sensory physiology. Vol. 3. New York: Academic Press, 1968. Pp. 125–148.
2.
GogelW. C.The effect of object familiarity on the perception of size and distance. Quarterly Journal of Experimental Psychology, 1969, 21, 239–247. (a)
