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. 2008 May 3;2:1. doi: 10.3389/neuro.09.001.2008

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Copyright: © 2008 Nagel, Chicherio, Li, von Oertzen, Sander, Villringer, Heekeren, Bäckman and Lindenberger.

This is an open-access article subject to an exclusive license agreement between the authors and the Frontiers Research Foundation, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.

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(A) Mean perseverative errors in the WCST as a function of age and COMT genotype. (B) Mean reaction time for correct WCST responses as a function of age, COMT genotype, and BDNF genotype. (C) Mean reaction time for correct SWM responses as a function of age and COMT genotype at load 4. (D) Mean reaction time for correct SWM responses as a function of age, COMT genotype, and BDNF genotype at load 7. Error bars represent standard errors around the means. WCST = Wisconsin Card Sorting Test; SWM = spatial working memory.

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