“…Behavioral therapy (Narumoto et al , 2009), aromatherapy (Jimbo et al , 2009) and animal‐assisted therapy (Le Roux & Kemp, 2009) are sometimes useful. Different strategies are recommended by the clinical settings, either at home (Kinoshita, 2008) or in institutions (Kutsumi et al , 2009; Tanaka et al , 2009). In view of specific features of Alzheimer's disease (Amano et al , 2009), frontotemporal dementia (Kimura et al , 2009), diffuse Lewy body disease (Kosaka, 2008), and vascular dementia (Chen et al , 2008), some unique trials have been reported.…”