Comparisons of lengths of lines separated horizontally and vertically

Autor:	Richard A. Griggs, Frank Restle
Rok vydání:	1975
Předmět:	Communication Field (physics) business.industry Visual space media_common.quotation_subject Adaptation level Illusion Experimental and Cognitive Psychology Geometry Sensory Systems Line (geometry) Anisotropy business General Psychology Mathematics media_common
Zdroj:	Perception & Psychophysics. 17:371-374
ISSN:	1532-5962 0031-5117
DOI:	10.3758/bf03199349
Popis:	Subjects made comparative ratings of two vertical lines. If the two lines were side by side, judgments were more accurate than if one line was higher in the field than the other. If one line was moderately higher in the field than the other, the higher line appeared shorter. This effect diminished when the higher line was raised, and disappeared when the higher line no longer overlapped with the lower. The direction of the illusion is opposite to the usual “anisotropy of visual space” or to expectations based on foreshortening or misplaced constancy. An explanation based on the configuration of the two lines, using the mathematical structure of adaptation level theory, was offered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::84e5da0847c61154dc4d68de6a11a15a https://doi.org/10.3758/bf03199349 Zobrazit plný text záznamu Full text from SpringerLink