Cross-Platform Ecological Momentary Assessment App (JTrack-EMA+): Development and Usability Study

Mehran Sahandi Far   ^{1, 2} , PhD ;   Jona M Fischer   ¹ , BSc ;   Svea Senge   ³ , MD ;   Robin Rathmakers   ³ , MD ;   Thomas Meissner   ³ , Prof Dr ;   Dominik Schneble   ³ , MD ;   Mamaka Narava   ¹ , MSc ;   Simon B Eickhoff   ^{1, 2} , Prof Dr ;   Juergen Dukart   ^{1, 2} , Prof Dr

¹ Research Centre Jülich, Institute of Neuroscience and Medicine, Brain and Behaviour (INM-7), Jülich, Germany

² Medical Faculty, Institute of Systems Neuroscience, Heinrich Heine University Düsseldorf, Düsseldorf, Germany

³ Department of General Paediatrics, Neonatology and Paediatric Cardiology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany