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. 2018 Sep 21;9:789. doi: 10.3389/fneur.2018.00789

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Copyright © 2018 Adkin and Carpenter.

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) and the copyright owner(s) 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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Threat context (A) and adaptation (B) effects. (A) Change in center of pressure (COP) mean position (MP), mean power frequency (MPF), and root mean square (RMS) between threat and no threat conditions for height, [0.8 and 3.2 m surface; 60-s stance duration; modified from (34)] and support surface translations (Trans) in the anterior-posterior (AP) direction [30 s stance duration; modified from (75)] and medial-lateral (ML) direction [60-s stance duration; (76)]. Closed circles reflect AP COP measures while open circles reflect ML COP measures. (B) Adaptation of emotional, cognitive (attention focus to movement processes; Att. MP) and postural responses for low (gray circles) and high (black circles) surface heights over 5 repeated 120-s standing trials (77).