Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Grahl, Sophia" or (type exact bookEditor and editor="Grahl, Sophia") Add to list Journal Article A1 open access Musical feedback during exercise machine workout enhances mood Thomas Fritz (UGent) , Johanna Halfpaap, Sophia Grahl, Ambika Kirkland and Arno Villringer (2013) FRONTIERS IN PSYCHOLOGY. 4.