Citation

Bridgeman B. Iperception 2010; 1(2): 69-72.

Affiliation

Department of Psychology, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; e-mail: bruceb@ucsc.edu.

Copyright

(Copyright © 2010, SAGE Publishing)

DOI

10.1068/i0387

PMID

23397002

PMCID

PMC3563054

Abstract

Space constancy, the appearance of a stable visual world despite shifts of all visual input with each eye movement, has been explained historically with a compensatory signal (efference copy or corollary discharge) that subtracts the eye movement signal from the retinal image shift accompanying each eye movement. Quantitative measures have shown the signal to be too small and too slow to mediate space constancy unaided. Newer theories discard the compensation idea, instead calibrating vision to each saccadic target.

Language: en