In general, when you publish a journal article, you sign over a certain amount of copyright to the publisher. The terms of the copyright transfer vary depending on the publisher and the journal, but most publishers require the author to transfer exclusive rights to reproduce and distribute the article. This means that you may need to obtain permission from the publisher in order to include the article in your dissertation.
However, many publishers allow authors to include their articles in their dissertations, either as part of a pre-print version or as the final, published version. In some cases, the publisher may allow you to include the article in your dissertation as long as you properly cite the article and include a disclaimer that it has been previously published.
It is important to carefully review the copyright agreement that you signed with the publisher to determine what rights you have to reuse the article. If you are unsure about the terms of the agreement, you can contact the publisher and ask for clarification.
In general, it is always a good idea to seek permission from the publisher before using any copyrighted material in your dissertation. This helps to ensure that you are using the material legally and reduces the risk of any copyright infringement issues down the road.
Answer written by ChatGPT, a language model developed by OpenAI. Edited by Stephanie Towery, Copyright & Open Access Initiative Librarian.