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Proffitt, D.R., Stefanucci, J., Banton, T., & Epstein, W. (2007). Reply to Hutchison and Loomis. The Spanish Journal of Psychology. 9, 340-342.

Proffitt, Stefanucci, Banton, and Epstein (2003) reported a set of studies showing that the perceived distance to a target is influenced by the effort required to walk to its location. Hutchison and Loomis (H&L) reported an experiment that failed to find a significant influence of effort on indices of apparent distance. There were numerous important differences between the design and methods of H&Lís study and those of Proffitt et al. Moreover, there are important theoretical reasons to believe that these differences were responsible for the different results. The theoretical motivation of H&Lís studies was also brought into question.

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