AUTHOR=Clark David J. , Manini Todd M. , Ferris Daniel P. , Hass Chris J. , Brumback Babette A. , Cruz-Almeida Yenisel , Pahor Marco , Reuter-Lorenz Patricia A. , Seidler Rachael D. TITLE=Corrigendum: Multimodal Imaging of Brain Activity to Investigate Walking and Mobility Decline in Older Adults (Mind in Motion Study): Hypothesis, Theory, and Methods JOURNAL=Frontiers in Aging Neuroscience VOLUME=12 YEAR=2020 URL=https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2020.00063 DOI=10.3389/fnagi.2020.00063 ISSN=1663-4365