E. Navarro-Pardo, L. González-Pozo, P. Villacampa-Fernández and J.A. Conejero
the Human Research Ethics Committee of the University of Valencia, since meets the fundamental principles established in the Declaration of Helsinki and the Council of Europe Convention on HumanRights, and the established requirements in Spanish legislation in the field of biomedical research, the protection of personal rights and bioethics are respected.
The flowchart of the design and procedure followed is displayed in Figure 1 . Potential participants were selected by the psychologist and the physician of the nursing home. The inclusion and exclusion criteria