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. 2014 May 23;9(5):e98386. doi: 10.1371/journal.pone.0098386

Figure 2. Letter reversal task.

Figure 2

Participants were presented with a stimulus (letter, reversed letter, or chair) for 200 ms followed by 800 ms of a blank screen. Stimuli were presented in a block design in the fMRI portion, and an event related design in the ERP portion of the experiment.