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. 2020 Jun 25;143(7):2154–2172. doi: 10.1093/brain/awaa159

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© The Author(s) (2020). Published by Oxford University Press on behalf of the Guarantors of Brain.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Contingent negative variation. CNV elicited by the first four sounds of the local-global paradigm, with both scalp topographies on top (average values and cluster-based permutation statistics) and ERPs averaged over the Cz-centred region of interest. Coloured dashed lines indicate a significant CNV slope while grey lines indicate a non-significant slope. Only vegetative (VS/UWS) and minimally conscious (MCS) patients with extinguishable response exhibited a significant CNV in both methods, P_cl = 0.0079 and P_cl = 0.0216, respectively. Only results surviving multiple comparisons through a spatial cluster-based permutation procedure with 10 000 permutations are presented. P_cl = cluster P-value; SEM = standard error of the mean.