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. 2013 Jan 4;6:127. doi: 10.3389/fnint.2012.00127

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Copyright © 2013 Imada, Morris and Wiest.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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Grand average eLFPs for the single-tone paradigm. (A,B) eLFPs averaged over 36 session-pairs in nine rats, in frontal (A) and parietal (B) cortex, for tones presented at oddball repetition rate (red) or tones presented at standard repetition rate (blue) separately. (C,D) plot the grand average difference between the single-tone rare (oddball) and frequent (standard) eLFPs at frontal (C) and parietal (D) electrodes, with the shaded region representing a 68% confidence interval based on the variability across sessions. In both brain regions, evoked responses tend to be larger in amplitude when the tone is presented infrequently, as opposed to when the same tone is presented frequently: in this single-tone context the enhancement may be attributed to SSA. Axes are identical to those in Figure 2 to facilitate comparison.