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. 2014 Feb 9;2014:162423. doi: 10.1155/2014/162423

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Copyright © 2014 Giacomo Veneri et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Results of the model varying parameters. (a) The number of steps to complete the task by model and by subjects. The surface reports the domain of all available explorations of model that humans could perform. Stressing covert attention humans could perform the best exploration (“center-of-gravity” fixations), but similar performance could be gained directing the gaze to an intermediate region to acquire overall scene information; this strategy was preferred by SCA2 and LOCA. (b) Saccade energy spent by the model for all available explorations that humans could perform. An overall minimum hyperplane was found at s ≈ 32 ± 8.2.