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Human Preferences for Symmetry: Subjective Experience, Cognitive Conflict and Cortical Brain Activity

Figure 2

Grand Averages of Selected ERP Waves.

During the parallel lines oddball task, at electrode sites F7 (A) and F8 (C) there was an early period of relatively more positivity followed by a later period of relatively more negativity in response to the deviant stimulus, as compared to the standard stimulus. There was increased positivity in response to the deviant stimulus, as compared to the standard stimulus, at electrode site Pz during both the parallel lines (B) and spheres (D) oddball task.

Figure 2

doi: https://doi.org/10.1371/journal.pone.0038966.g002