Corrigendum: Performance Differences Using a Vibro-Tactile P300 BCI in LIS-Patients Diagnosed With Stroke and ALS - Heilinger, Alexander; Ortner, Rupert; La Bella, Vincenzo; Lugo, Zulay R.; Chatelle, Camille; Laureys, Steven; Spataro, Rossella; Guger, Christoph (Frontiers in Neuroscience, 2021)