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. 2017 Mar 17;8:410. doi: 10.3389/fpsyg.2017.00410

FIGURE 1.

FIGURE 1

Illustration of the trial procedure, task cues, and stimuli in the four training sessions for the four task-switching training groups. Participants had to switch between a digit task (odd or even?) and a letter task (consonant or vowel?). Task-switching Training Group 1 received task cues and practiced with univalent stimuli (Upper/left). Task-switching Training Group 2 also received task cues and practiced with bivalent stimuli (Lower/left). Task-switching Training Group 3 practiced without task cues and with univalent stimuli (Upper/right). Task-switching Training Group 4 practiced without task cues and with bivalent stimuli (Lower/right).