1 Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Otfried-Müller-Straße 25, 72076, Tübingen, Germany. Electronic address: nicolas.lutz@uni-tuebingen.de.
2 Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Otfried-Müller-Straße 25, 72076, Tübingen, Germany. Electronic address: jan.born@uni-tuebingen.de.