n. a methematical equation which calculates perceptual constancy along with variations in environmental factors. This is expressed as: (P - R)HO - R), where P is the perceived size, R is the image size on the retina, H is the height, and O is the objective or actual size. Devised by U.S. psychologist Ergon Brunswik (1903-1955).

BRUNSWIK RATIO: "The Brunswick ratio calculates perceptual constancy based on both perceived size and actual size."
Cite this page: N., Pam M.S., "BRUNSWIK RATIO," in, April 7, 2013, (accessed August 8, 2020).