1. School of Psychology, University of Kent, Canterbury, UK
2. CHX Performance, London, UK
3. Medicine and Physiology of Hypoxia, Plateau Rosà, Italy/Switzerland
4. Neuroscience Dept, University of Turin Medical School, Turin, Italy
5. Department of Neuroscience, University of Genoa, Italy
6. Department of Veterans Affairs, William S. Middleton Veterans Memorial Hospital, Madison, WI, USA
7. Department of Kinesiology, University of Wisconsin–Madison, Madison, WI, USA
8. Department of Human Physiology, Vije Universiteit Brussels, Belgium