“…Alois Alzheimer's patient had VDB as she screamed loudly (Alzheimer, 1907), but other descriptions have since been added and include, besides screaming, shouting, yelling, howling, talking constantly, permanent requests for attention and help, repeating phrases or words, repetitive verbalizations, repetitious noises, groaning, singing loudly, nonsense talking, verbal aggression, making threats implying harm to others or self, abusive or accusatory or hostile or obscene or profane language, complaining, and cursing. These behaviors may all be considered as VDB (Cariaga et al, 1991;Beck et al, 1998;Draper et al, 2000). Further variants of VDB are continuous chattering, muttering, singing or humming, grunting, and bizarre noise-making that can be observed in people with severe dementia (Nagaratnam et al, 2003b).…”