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How small can you go?: analyzing the effect of visual angle in pointing tasks
Conference proceeding

How small can you go?: analyzing the effect of visual angle in pointing tasks

Juan Pablo Hourcade and Natasha Bullock-Rest
Proceedings of the SIGCHI Conference on human factors in computing systems, pp.213-216
CHI '12
05/05/2012
DOI: 10.1145/2207676.2207706

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Abstract

People are increasingly using wireless mice from across rooms as they use computers as entertainment centers. As a consequence, they often have to point at targets occupying small visual angles. In this note we present the results of a study on pointing performance for targets occupying small visual angles. Our results suggest there is a steep degradation of pointing performance in both accuracy and speed for targets occupying a visual angle below 3 minutes of arc.
accuracy efficiency pointing visual angle

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