During the course of disease, the patient and caregiver face emotional and behavioral problems that may occur. Therefore, it is important to knowing how emotions and the perception of them are modified and thus to know the impact they have on mood and behavior of the patient and caregiver. Publicizing the type of pathology, both emotional and behavioral levels, in a patient with dementia can help in the development of nonpharmacological interventions that could slow the symptoms and improve the quality of life of patients.