Citation

Lyon DR. J. Exp. Psychol. Hum. Percept. Perform. 1992; 18(4): 1139-1157.

Affiliation

University of Dayton Research Institute, Higley, Arizona 85236-2020.

Copyright

(Copyright © 1992, American Psychological Association)

DOI

unavailable

PMID

1431749

Abstract

Experiments with 2-element visual groups reveal a form of interference that has several interesting properties. Observers judged the orientation of an imaginary line formed by 2 pixels (the target) while attempting to ignore a third pixel (the noise). Noise interfered with performance, even when it was made distinct from the target in various ways. This interference was strongly position linked; a single equation described the interference pattern for many different target-noise configurations. Maximum interference was observed not when the noise was closest to the target but when it was at a distance of half the separation between target pixels. Some initial findings were consistent with the idea that visual grouping reflects the operation of visual channels with Gabor-like receptive-field profiles. But subsequent results implicated processes that automatically construct visual boundaries.

Language: en