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. 2016 May 18;10:92. doi: 10.3389/fnbeh.2016.00092

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Copyright © 2016 Lin and Lin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Summary behavior outcomes of the n-back WM tasks for (A) accuracy, and (B) correct RT in all combinations of cognitive task complexity and walking road condition. Error bars represent ±1 SE. An asterisk (^∗) denotes a significant difference (p < 0.05) between the 1-back and 3-back task under the same walking road condition. Under the same cognitive task complexity, a significant difference (p < 0.05) between the target road condition and the stand/wide/narrow road condition is denoted by the symbol S/W/N, respectively.