the alleviation of apathy in people with dementia Thirty-two patients in a residential nursing home with moderate to severe dementia were videotaped during 30 minutes of silence, 30 minutes of pre-recorded music, and 30 minutes of live music. The muted recordings were rated using Dementia Care Mapping (DCM) (Kitwood, 1997 by a qualified rater blinded to the study, and analyzed using Wilcoxon signed rank.