1. Department of Neurobiology, Care Sciences and Society, Aging Research Center, Karolinska Institutet and Stockholm University, Sweden.
2. Department of Clinical Neuroscience, Psychology Division, Karolinska Institutet, Stockholm, Sweden.
3. Department of Otorhinolaryngology, TU Dresden, Germany.
4. Stockholm Gerontology Research Center, Sweden.
5. Gösta Ekman’s Laboratory, Department of Psychology, Stockholm University, Sweden.