AUTHOR=Khan Haroon , Nazeer Hammad , Minhas Hamza Shabbir , Naseer Noman , Mirtaheri Peyman TITLE=Open-access fNIRS dataset for motor imagery of lower-limb knee and ankle joint tasks JOURNAL=Frontiers in Robotics and AI VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2025.1695169 DOI=10.3389/frobt.2025.1695169 ISSN=2296-9144