Write an abstract for my research paper, following APA style. Please add keywords. An abstract is summarizing the findings in the studies and how it relates to my research question.

The crucial research question is, does schizophrenia affect long-term memory?

Use the references below:

doi:10.1371/journal.pone.0026140

doi:10.1080/135468000395826

doi:10.3389/fpsyt.2020.00832