Trough the application of multidimensional scaling method (Torgerson's procedure) a possibility has been tested and confirmed that the binocular visual space in the sense of Luneburg is describable in terms of Euclidean geometry of appropriate dimensions. In a dark room, 14 small light points were presented in the eye level to the S whose head was fixed but eyes were allowed to move freely to fixate each stimulus point. The S himself was counted as a point in addition to the 14 lights points and ratio judgments about apparent interpoint distances of all possible pairs were made and scaled. The apparent interpoint distances were accounted for fairly well within the framework of two dimensional Euclidean geometry. From the correspondence between two configurations, of stimuli in the physical space and of perceived points in the visual space, an attempt was made to deduce theoretical forms of horopters, distance and parallel alleys.
Samenvatting