Sharpness overconstancy: The roles of visibility and current context

12Citations
Citations of this article
13Readers
Mendeley users who have this article in their library.

Abstract

In a previous study we found that blurred edges presented in peripheral vision look sharper than when they are looked at directly, a phenomenon we have called peripheral sharpness overconstancy (Galvin et al. (1997). Vision Research, 37, 2035-2039). In the current study we show that when visibility of the stimulus edges is compromised by very brief presentations, we can demonstrate sharpness overconstancy for static, foveal viewing. We also test whether the degree of sharpening is a function of the current visual context, but find no difference between the peripheral sharpness overconstancy (at 24°eccentricity) of edges measured in a blurred context and that measured in a sharp context. We conclude that if the visual system does carry a template for sharp edges which contributes to edge appearance when visibility is poor, then that template is resistant to changes in context.

Cite

CITATION STYLE

APA

Galvin, S. J., O’Shea, R. P., Squire, A. M., & Hailstone, D. S. (1999). Sharpness overconstancy: The roles of visibility and current context. Vision Research, 39(16), 2649–2657. https://doi.org/10.1016/S0042-6989(98)00306-X

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free