The use of 'Snoezelen' as multisensory stimulation with people with intellectual disabilities: a review of the research.
Snoezelen rooms give a brief mood lift but the calm rarely travels past the doorway.
01Research in Context
What this study did
Weiss et al. (2001) looked at every paper they could find on Snoezelen rooms. These rooms have soft lights, gentle music, and interesting textures. The team wanted to know if the rooms help people with intellectual disability or autism.
They pulled together studies published between 1985 and 2000. Most papers only watched clients during or right after the room visit.
What they found
Right after a Snoezelen session, clients often smiled more and hit less. The calm mood faded fast once they left the room. Few studies showed the gains lasting into the hallway, classroom, or home.
The review calls the evidence “mixed.” Some papers saw big drops in screaming; others saw no change at all.
How this fits with other research
Ladouceur et al. (1997) ran an early test that the review includes. They saw the same short lift in attention and happiness, backing up the review’s main point.
Fullana et al. (2007) flips the script. Their reversal study with three autistic in-patients found no benefit; one client actually got more disruptive in the room. This looks like a clash, but the 2007 group used stricter autism criteria and measured behavior for days, not minutes. The longer look caught the fade-out that the 2001 review warns about.
Black et al. (2022) widen the lens. They show that simple room tweaks—dim lights, sound panels, neutral paint—can cut sensory overload without any special equipment. Their work hints that everyday spaces might give the same calm, minus the cost of a full Snoezelen setup.
Why it matters
You can still use a Snoezelen room as a quick reset button. Keep sessions short and stay in the room with the client. Watch for any uptick in problem behavior; Fullana et al. (2007) proved it can happen. After the visit, plan a preferred task to stretch the calm. Do not bank on carry-over—teach replacement skills in the natural setting if you want lasting change.
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02At a glance
03Original abstract
The past 15 years have seen a marked increase in the use of Snoezelen with a wide range of groups including people with intellectual disabilities. Research has been undertaken with respect to a variety of behaviors, notably changes in affect, challenging behavior, relaxation and interactions with both other persons and objects. Typically studies have adopted an applied behavior analysis approach, with a small number employing physiological measures. Research designs vary markedly in their technical adequacy and the participants have a wide range of intellectual disability, age, and additional characteristics such as autism. Much of the literature reviewed demonstrates a wide range of positive outcomes when Snoezelen Vs non-Snoezelen environments are contrasted, though there is little evidence of generalisation even to the immediate post-Snoezelen environment. Several studies, however, do yield entirely negative outcomes. It is difficult to attribute these differing outcomes to either participant characteristics or contrasted designs, given the diversity of approaches to evaluation and the relatively small number of studies. The review also addresses the issue of staff and carer attitudes and the place of Snoezelen in facilitating positive interactions, incidental to any specific sensory effects. Attention is drawn to the need to improve research designs in studying Snoezelen and to developing a clearer theoretical basis for use of this approach.
Research in developmental disabilities, 2001 · doi:10.1016/s0891-4222(01)00077-4