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. 2019 Sep 6;10:2014. doi: 10.3389/fpsyg.2019.02014

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Copyright © 2019 Schmidt, Schmidt, Padilla, Simões, Tolentino, Barroso, Narciso, Godoy and Costa Filho.

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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Attention task (CVAT). Computer visual attention test (CVAT). The test begins with written instructions on the screen (A). The target (B) remains on the screen for 250 ms. The non-target (C) remains on the screen for 250 ms. Inter-stimulus time interval varies between 1, 2, and 4 s, equally distributed along the test. The test lasts 15 min. Translated version of instructions in English: “In this test, the computer alternately displays the indicated figures in the center of the screen. You must press the spacebar using your dominant hand as fast as you can whenever the star appears in the center of the screen. If the other figure appears, you should not press the space bar.”