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. 2018 Aug 21;8:12499. doi: 10.1038/s41598-018-30414-9

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Relationship between neural activity and changes in drift rate. (a) Change in voltage between the auditory lead and visual lead conditions for each of the seven SOAs on the current trial. Data was pooled across the 20 electrodes and 200 time points (368–567 ms) found to be significant in all spatiotemporal clusters. Error bars indicate standard error of the mean. Inset: The 20 selected electrodes. Red line indicates the linear regression fit. (b) Relationship between change in drift rate and change in evoked amplitude pooled across the five SOAs which demonstrated significant drift rate modulation based on lead type. Values were pooled as in A. Red line indicates the linear regression fit. (c) Distribution of within subject correlations between change in drift rate and change in evoked potential amplitude. Each dot is one participant. The dashed line indicates the critical value (r < −0.7545) for a significant within subject negative correlation (p < 0.05, two-tailed) between change in drift rate and change in voltage.