Abstract
A new illusion in which the apparent number of elements of two kinds is determined by their spatial arrangement is described. The illusion is such that one large cluster appears to contain more elements than several small clusters, clustering being determined by Gestalt principles. The illusion was found both in adults and in children of 8 years.
Article PDF
Similar content being viewed by others
References
PIAGET, J. Quantification, conservation and nativism. Science, 1968, 162, 976–979.
PIAGET, J., & INHELDER, B.Mental imallery in the child, London: Routledge & Kegan Paul, 1971 (Firat published in 1966).
PICK, H. L., JR., & PICK, A. D. Sensory and perceptual development. In P. H. Mussen (Ed.),Carmichael’s manual of child Psychology. Vol. 1. Chapter II. New Yolk: Wiley, 1970. Pp. 773–847.
WERTHEIMER, M. Untersuchungen zur Lehre von der Gestalt. Psychologische Forschung, 1923, 4, 301–350.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Frith, C.D., Frit, U. The solitaire illusion: An illusion of numerosity. Perception & Psychophysics 11, 409–410 (1972). https://doi.org/10.3758/BF03206279
Accepted:
Issue Date:
DOI: https://doi.org/10.3758/BF03206279