AUTHOR=Kirvin-Quamme Andrew , Kirke Karen D. , Junge Oscar , Edwards Jonathan C. W. , Holmes Kevin J. TITLE=Unwilling or unable? Interpreting effort task performance in myalgic encephalomyelitis/chronic fatigue syndrome JOURNAL=Frontiers in Psychology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2025.1593269 DOI=10.3389/fpsyg.2025.1593269 ISSN=1664-1078