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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Neuroimage. 2009 Dec 21;50(1):277. doi: 10.1016/j.neuroimage.2009.12.039

Figure 3. Timing and topography of attention-mediated facilitation and inhibition.

Figure 3

(A) Mean ERPs at the fronto-central electrode group to attended, control and ignored standards are depicted in green, grey and red, respectively. The differences between ERPs to attended and control (facilitation), and to ignored and control (inhibition) standards are represented below by green and red lines respectively. Shaded areas correspond to the 50-ms windows, in the 150-300 ms period, used for statistical analysis. Stars indicate significant differences assessed by permutation post-hoc tests of the main attention effect (**: P < 0.01; ***: P < 0.001). (B) Scalp topographies (top view) of facilitation (mean difference between ERPs to attended and control standards) and inhibition (mean difference between ERPs to ignored and control standards) between 250 and 300 ms. The black oval surrounds the fronto-central electrode group used for ERP computation and statistical analysis represented in A.