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. 2021 Jan 14;8:9. doi: 10.1038/s41597-020-00790-x

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© The Author(s) 2021

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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Fig. 1 — Task and recordings. (a) Aversive (red) and neutral (blue) video sequences were presented in blocks of 24 s, interleaved with a repeated 2 s neutral baseline (green). The images are representative video stills drawn from the video sequences. (b) iEEG was recorded with macroelectrodes and neuronal action potentials were recorded with microelectrodes. iEEG signals were stored trial-wise as recorded and after bipolar re-referencing. Neuronal action potentials (spikes) were extracted from the microelectrode recordings by spike sorting and stored trial-wise for each neuron.