@misc{cogprints6780,
           month = {April},
           title = {Bias towards Regular Con?guration in 2D Pointing
},
          author = {Huahai Yang and Xianggang  Xu},
       publisher = {ACM Press},
            year = {2010},
        keywords = {Con?guration space, Fitts? law, 2D pointing
},
             url = {http://cogprints.org/6780/},
        abstract = {Extending Fitts? law to more than one dimension has been
recognized as having important implications for HCI. In spite
of the progress made over the years, however, it is still far
from a resolved issue. Our work approaches this problem
from the viewpoint of a con?guration space, which has served
as a useful conceptual framework for understanding human
preference in perception. Notably, human are found to be
biased towards regular con?gurations. In this work, we ex-
tended the con?guration space framework to the domain of
motor behavior, analyzed 2D pointing, and developed ?ve
models to account for the performance. An extensive experiment was conducted to measure the ?t of the derived models
and that of three previous models. Consistent with our hypothesis, the model re?ecting a bias towards regular con?guration was found to have the most satisfactory ?t with the
data. The paper concludes with discussions on improving
understanding of Fitts? law and the implications for HCI.
}
}

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