1. Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
2. Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
3. Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund 44139, Germany
4. Department of Neurology, University Medical Hospital Bergmannsheil, Ruhr University Bochum, Bochum 44789, Germany