Artefactual origin of biphasic cortical spike-LFP correlation

Abstract

Electrophysiological data acquisition systems introduce various distortions into the signals they record. While such distortions were discussed previously, their effects are often not appreciated. Here I show that the biphasic shape of cortical spike-triggered LFP average (stLFP), reported in multiple studies, is likely an artefact introduced by high-pass filter of the neural data acquisition system when the actual stLFP has a single trough around the zero lag.

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Item Type:	Article
Authors/Creators:	Okun, M. https://orcid.org/0000-0002-7795-5513
Copyright, Publisher and Additional Information:	© The Author(s) 2016. Open Access: This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.
Keywords:	Phase distortion; Extracellular amplifier; Neural probes; Silicon probes; Neural data acquisition
Dates:	Accepted: 4 September 2016 Published (online): 14 September 2016 Published: February 2017
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Psychology (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	18 May 2022 13:32
Last Modified:	18 May 2022 13:32
Status:	Published
Publisher:	Springer Science and Business Media LLC
Refereed:	Yes
Identification Number:	10.1007/s10827-016-0625-5
Related URLs:	Author
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:186950

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Artefactual origin of biphasic cortical spike-LFP correlation

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