A Cochrane review included 2 studies with a total of 246 subjects. Snoezelen, multi-sensory stimulation, provides sensory stimuli to stimulate the primary senses. The name is derived from two Dutch verbs, 'sniffen' and 'doezelen'. In one of the studies, 24-hour integrated snoezelen-care programme had positive effects on mood and behaviour in the study subjects during the intervention, but none of the studies had any significant post-intervention effects on behaviour, mood, cognition or communication/interaction.
Comment: The quality of evidence is downgraded by limitations in study quality, by imprecise results (limited study size for each comparison) and by inconsistency (heterogeneity in interventions and outcomes).