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. 2011 Dec 2;6(12):e28330. doi: 10.1371/journal.pone.0028330

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Grigoleit et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Long-term memory performance for emotionally arousing and neutral stimuli after administration of LPS (black bars) or saline (white bars). Left panel: low-dose group with subjects who received 0.4 ng LPS per kg of body weight. Right panel: high-dose group with subjects who received 0.8 ng/kg. Data are presented as means ± SEM. Significant differences between the two groups or between experimental condition and respective saline control: *p<0.05 (Bonferroni corrected t-test). Except for the low-dose LPS condition, memory performance was always significantly higher for emotional than for neutral stimuli (Bonferroni corrected t-tests, not illustrated).