Research Article  |   September 2011
Effectiveness of Interventions Designed to Modify and Maintain Perceptual Abilities in People With Alzheimer’s Disease and Related Dementias
Author Affiliations & Notes
  • Lori Letts, PhD, OT Reg. (Ont.), is Associate Professor and Assistant Dean, Occupational Therapy Program, School of Rehabilitation Science, McMaster University, Hamilton, Ontario
  • Jacqueline Minezes, MSc (RS), OT Reg. (Ont.), is Rehabilitation Clinical Coordinator, Halton Healthcare Services, Oakville, Ontario
  • Mary Edwards, MHSc, OT Reg. (Ont.), is Associate Clinical Professor, School of Rehabilitation Science, McMaster University, Hamilton, Ontario
  • Julie Berenyi, OT Reg. (Ont.), is Occupational Therapist, Hamilton Health Sciences, St. Peter’s Hospital, Hamilton, Ontario
  • Kathy Moros, OT Reg. (Ont.), is Occupational Therapist, Hamilton Health Sciences, St. Peter’s Hospital, Hamilton, Ontario
  • Colleen O’Neill, OT Reg. (Ont.), is Occupational Therapist, McMaster Family Health Team, Hamilton, Ontario
  • Colleen O’Toole, MSc (OT), OT Reg. (Ont.), is Occupational Therapist, CBI Home Health, Hamilton, Ontario
  • Address correspondence to René Padilla, PhD, OTR/L, FAOTA, Office of Academic and Student Affairs, Criss III Building, Suite 154, School of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Omaha, NE 68178; rpadilla@creighton.edu
Article Information
Alzheimer's Disease and Dementia / Evidence-Based Practice / Neurologic Conditions / Special Issue—Effectiveness of Occupational Therapy Services for People With Alzheimer’s Disease and Related Dementias
Research Article   |   September 2011
Effectiveness of Interventions Designed to Modify and Maintain Perceptual Abilities in People With Alzheimer’s Disease and Related Dementias
American Journal of Occupational Therapy, September/October 2011, Vol. 65, 505-513. doi:10.5014/ajot.2011.002592
American Journal of Occupational Therapy, September/October 2011, Vol. 65, 505-513. doi:10.5014/ajot.2011.002592
Abstract

An evidence-based review was undertaken to answer the question, “What is the evidence for the effect of interventions designed to modify and maintain perceptual abilities on the occupational performance of people with Alzheimer’s disease and related dementias?” A systematic search of electronic databases and application of inclusion and exclusion criteria guided the selection of 31 articles. Each article was critically appraised, and the evidence was synthesized. Some interventions use remaining perceptual abilities to enable people to find their way in a facility and decrease attempts at exiting. Preliminary evidence has supported use of visual stimulation and barriers. We found some evidence for the use of auditory stimuli and group therapy that aim to change perceptual abilities. Research with high-level evidence is required to validate these findings. Evidence on the benefits of Snoezelen® is not conclusive for occupational performance outcomes; further research to justify its use as an occupational therapy intervention may be warranted.