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. 2019 Nov 27;13:372. doi: 10.3389/fnhum.2019.00372

Figure 1.

Figure 1

Illustration of the paradigm developed for this experiment. Participants are shown either 1, 2, 5, or 10 yellow targets on the computer screen at a time. When one is touched by the blue tracer, the target will disappear and a new one will appear at a random location. The game can be played by one or two participants at a time; in the case of paired participants, participant A was seated on the right side and use his/her right index finger. Participant B was on the left side and use his/her left index finger.