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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Infancy. 2015 May 29;20(5):467–506. doi: 10.1111/infa.12087

FIGURE 4.

FIGURE 4

Evolution of activation patterns in the DNF model during a trial in the invalid condition. Each panel shows the situation during a certain period of the simulation. The simplified, one-dimensional visual stimulus is shown on top, the visual input derived from it and the activation distributions in the spatial attention field and saccade motor field are plotted below. In addition, the activation states of the modulatory fixation node (triangle pointing up) and gaze change node (triangle pointing down) are shown in the axis of the spatial attention field, the activation of the saccade reset node is shown in the axis of the saccade motor field. The general connection pattern between the fields is shown in the first panel. (A) Fixation period. (B) Presentation of the pre-cue and simultaneous activation of the gaze change to reflect the tone cue. (C) Presentation of the target stimulus. (D) Attentional selection of the target location and initiation of a saccade.