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. 2019 May 3;10:535. doi: 10.3389/fphys.2019.00535

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Copyright © 2019 Tan, Van den Bergh, Qiu and von Leupoldt.

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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Representative difference waveforms for the interoceptive ERN (error response minus correct response) and respective scalp topography plots around FCz for the predictable and unpredictable condition for (A) participant undergoing the condition order unpredictable- predictable-unpredictable-predictable (UPUP) and (B) participant undergoing the condition order predictable-unpredictable-predictable-unpredictable (PUPU); (C) means of difference waveforms for the interoceptive ERN around FCz across all participants undergoing the condition order UPUP and all participants undergoing condition order PUPU. Error bars represent standard errors. ^∗p < 0.05.