1. Department of Psychology, Madrid Open University (UDIMA), Collado Villaba, 28400 Madrid, Spain
2. Institute for Advanced Social Studies, Spanish National Research Council, 14004 Córdoba, Spain
3. University Program for Older Adults (PUMA), Autonomous University of Madrid, Cantoblanco Campus, 28049 Madrid, Spain
4. Department of Psychobiology and Health, Autonomous University of Madrid, Cantoblanco Campus, 28049 Madrid, Spain
5. University of La Habana, 11600 La Habana, Cuba
6. Gerontology Research Group, National Autonomous University of Mexico, FES Zaragoza Campus, 09230 Mexico City, DF, Mexico
7. Older Adults Program, Catholic University of Chile, Santiago Metropolitan Region, Santiago, Chile