The Nonequivalence of Abrupt and Diffuse Illusory Contours
- 1 October 1979
- journal article
- research article
- Published by SAGE Publications in Perception
- Vol. 8 (5), 589-593
- https://doi.org/10.1068/p080589
Abstract
A distinction is drawn between diffuse regions of apparent brightness and illusory, but abrupt, brightness gradients. Differences between the two phenomena are sufficient to disqualify conclusions about one based on observations about the other. It is suggested that diffuse contours may be attributable to peripheral mechanisms while sharp contours may be central or cognitive in origin.Keywords
This publication has 2 references indexed in Scilit:
- Illusory Contours Not Due to CompletionPerception, 1978
- Cognitive ContoursNature, 1972