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. 2018 Jul 17;4:76. doi: 10.1038/s41420-018-0078-x

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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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Fig. 5 — Representative voltage clamp trace showing reduced inward currents after a low dose (6.25 μM) and b high dose (4 mM) cocaine treatment. Step size = 15 mV. The inset shows a high magnification view of inward currents. c (Left) Current–voltage relationship of inward currents (top) and outward currents (bottom) measured from untreated, low dose, and high dose cocaine-treated N2a cells (n = 8 for each group). c (Right) Average peak current amplitude at −15 mV (top, inward currents) and +60 mV (bottom, outward currents). **P < 0.001, significant in comparison to corresponding controls, one-way ANOVA, Bonferroni’s multiple comparison tests