As the global population ages rapidly, the U.S. Department of Veteran’s Affairs (VA) estimates that 1.1 million Veterans will have dementia by 2029. Due to their progressive cognitive decline, people living with dementia have difficulty adapting to environmental stresses, which can often worsen their symptoms. Elderly people with dementia-related behavior issues, such as bouts of aggression, are often treated with drugs, which can be costly and dangerous. The built environment may offer a therapeutic alternative to pharmacological intervention by addressing sensory needs with multi-sensory environments.

Multi-sensory environments (MSEs) are flexible, purposefully-designed environments that help calm people by helping them reach sensory equilibrium. These environments include visual, auditory and olfactory stimuli, such as ergonomic, vibro-acoustic furniture, color-changing LED lights, music, fiber optics, aromatherapy and bubble tubes.

Research Question

Are multisensory environments effective as behavior interventions for people with dementia?

Our team conducted a 20-week research study with the VA to understand the effect of MSEs environments on Veterans with dementia. After publishing a literature review, we conducted an interview-based qualitative study using direct feedback from care teams on the clinical barriers that would prevent the use of MSEs for Veterans with dementia. Finally, we conducted an observational clinical trial on the effects of MSE intervention on behavior during assisted bathing.

On average, the research demonstrated that positive behaviors increased and negative behaviors decreased in the MSE. Medical staff can use the findings to improve MSE implementation, healthcare design teams can support better behavioral outcomes by incorporating sensory elements with environments where problem behaviors are known to occur, and families may be able to assist their loved ones with dementia by using MSEs at home.


U.S. Department of Veteran’s Affairs (VA)


Various, USA

Project Type


Summary of Findings

  • Multisensory environments may be impactful as non-pharmacological dementia therapy.
  • At the VA, dedicated MSE rooms were preferred by staff respondents over mobile carts.
  • Training, staff engagement, a clear maintenance plan and access to the MSE were critical barriers to uptake.
  • MSE within the bathing environment may reduce problem behaviors and increase positive behaviors.
  • Veterans seemed to favor the bubble tubes, aromatherapy and solar wall projector, which staff also perceived as being the most effective in reducing problem behavior.
Lesa Lorusso_MSE Room


  • Lesa N. Lorusso, Ph.D., Gresham Smith
  • Ronald Shorr, MD, MS, VA NF SG GRECC
  • Nam-Kyu Park, Ph.D., University of Florida
  • Sheila Bosch, Ph.D., University of Florida
  • Sherry Ahtentzen, Ph.D., University of Florida
  • Maureen Conroy, Ph.D., University of Florida

Project Contact

Our team designs with genuine care for ingenious solutions.

Design with us.

Lesa Lorusso, Ph.D., MBA, MSArch, Allied AIA, ASID, RID, NCIDQ
Lesa Lorusso, Ph.D., MBA, MSArch, Allied AIA, ASID, RID, NCIDQ
Healthcare Director of Research & Insights