The article Concussion killjoys: CTE, violence and the brain’s becoming, written by Aryn Martin and Alasdair McMillan, was originally published electronically on the publisher’s internet portal on 30 October 2020 without open access. With the author(s)’ decision to opt for Open Choice the copyright of the article changed on 9 February 2021 to © The Author(s) 2021 and the article is forthwith distributed 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licen ses/by/4.0/.

由Aryn Martin和Alasdair McMillan撰写的《脑震荡的喜悦：CTE，暴力和大脑的变迁》一文最初于2020年10月30日在出版商的互联网门户上以电子方式发布，但没有开放访问权限。随着作者决定选择“开放选择”，文章的版权于2021年2月9日更改为©作者2021，并且该文章随即随知识共享署名4.0国际许可协议分发，该许可允许使用，共享，改编，发行和以任何媒介或格式进行的复制，只要您对原始作者和原始来源给予适当的感谢，提供知识共享许可的链接，并指出是否进行了更改。本文的图片或其他第三方材料包含在该文章的知识共享许可中，除非在该材料的信用额度中另有说明。如果该材料未包含在该文章的创用CC许可中，并且您的预期使用未得到法律法规的许可或超出了许可的使用范围，则您需要直接获得版权所有者的许可。要查看此许可证的副本，请访问http://creativecommons.org/licen ses / by / 4.0 /。