1. Center for Memory Disturbances , Section of Neurology, Department of Medicine and Surgery, , Perugia , Italy
2. University of Perugia , Section of Neurology, Department of Medicine and Surgery, , Perugia , Italy
3. Section of Endocrinology and Metabolism , Department of Medicine and Surgery, , Perugia , Italy
4. University of Perugia , Department of Medicine and Surgery, , Perugia , Italy
5. Section of Psychiatry , Department of Medicine and Surgery, , Perugia , Italy
6. Department of Philosophy , Social & Human Sciences and Education, , Perugia , Italy
7. University of Perugia , Social & Human Sciences and Education, , Perugia , Italy