“…Among the population older than 65 years, the prevalence of memory symptoms is on average 5-9% and among older people above 85 more than 25% (Lobo et al, 2000;Ferri et al, 2005). Dementia is an important factor, but mental symptoms of senior citizens are multi-factorial, and symptoms occur also without dementia (Akincigil et al, 2011). The prevalence of depression as a mental disorder is high among older citizens who do not have memory diseases.…”