The Stomper Scrutinizer: Web Browser w/Visual Simulation
http://about.stompernet.com/scrutinizer
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Andy Edmonds
StomperNet
2007

Abstract:

The Stomper Scrutinizer is a webkit based browser that includes a simulation of human foveal and peripheral vision. By providing a realistic distortion of non-focused page content, the Scrutinizer reveals the perceptability of design features. It is also useful for conducting usability tests, design reviews, and has a number of features (including screenshots) for talking about design.