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. 2023 Feb 2;17:1058340. doi: 10.3389/fnins.2023.1058340

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Copyright © 2023 Dowiasch, Blanke, Knöll and Bremmer.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Experimental design. After initial fixation (500 ms) the target was displaced by 12° either to the left or right (only leftward displacement shown here) and immediately started to move into the opposite direction at 10°/s (2,400 ms pursuit duration). The localization target (“flash”) was presented when the eyes were in the center of the screen. In one half of the trials the target was temporarily blanked (“gap” area indicated in gray in the middle panel, invisible in real trials). Blanking started 200 ms before and lasted till 100 ms after flash presentation. When the target reached 12° eccentricity it was extinguished and subjects performed a localization saccade to the perceived flash position. After position confirmation by key stroke a bright screen was presented to prevent dark adaptation. Flash or eye positions in the individual panels are not drawn to scale. See main text for geometrical details.