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. 2009 Oct 30;3:40. doi: 10.3389/neuro.09.040.2009

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Copyright © 2009 Yordanova, Kolev and Verleger.

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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Group mean values ± SE for the early- (Early-NG) and late-night group (Late-NG) before (PRE) and after (POST) sleep. (A) Mean RTs for different response numbers (R1 to R7). (B) Mean RTs of difference-rule-related responses (DIFF), identity-rule-related responses (ID), and Enter-press (ENTER). (C) Normalized RTs according to the Enter-press for the consecutive response numbers (R1 to R7). (D) Mean RTs for unpredictable (UNPREDICT) and predictable (PREDICT) response types. (E) Coefficient of variation (CV) of RTs for the consecutive response numbers.