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. 2012 Jun 4;7(6):e38115. doi: 10.1371/journal.pone.0038115

Figure 1. Neurofeedback protocol.

Figure 1

During the neurofeedback runs (3 in each of the 4 sessions), participants alternated between 20 s periods of rest and 20 s periods where they had to upregulate activity in the target area. The level of activation was fed back in real time (updated for each TR of 2 s) through the thermometer display.