Multisensory Environment-Based Occupational Therapy for Alzheimer's Patients

This study aims to investigate the effects of a multisensory environment-based occupational therapy intervention on sensory processing, cognitive functions, behavioral and psychological symptoms, and caregiver burden in individuals diagnosed with Alzheimer's disease. Alzheimer's disease, as a progressive neurodegenerative condition, leads to gradual impairments in cognitive, emotional, and functional abilities, which in turn cause behavioral disturbances and significantly increase caregiver stress. In recent years, non-pharmacological approaches have gained attention for their role in managing dementia-related symptoms, maintaining daily functioning, and supporting caregivers' well-being. Multisensory environments, which offer structured stimulation involving visual, auditory, tactile, proprioceptive, vestibular, olfactory, and gustatory senses, are designed to facilitate sensory integration and promote engagement through meaningful sensory experiences. These environments can reduce agitation, enhance communication, and improve mood and attention among individuals with dementia by creating a sense of comfort and familiarity. This randomized controlled study will include individuals aged 65 years and older who have been clinically diagnosed with moderate-stage Alzheimer's disease, as well as their primary caregivers. The intervention will be implemented over a four-week period, consisting of two 45-minute sessions per week conducted in a controlled multisensory therapy room. Standard care will be provided to the control group. Outcome measures will include the Adult/Adolescent Sensory Profile to assess sensory processing patterns, the Lowenstein Occupational Therapy Cognitive Assessment for Geriatrics version for cognitive performance, the Neuropsychiatric Inventory for behavioral and psychological symptoms, and the Zarit Caregiver Burden Inventory for caregiver stress. Pre- and post-intervention assessments will be conducted to determine changes in the target variables. It is anticipated that the multisensory environment-based occupational therapy intervention will positively affect sensory processing and cognitive functions, reduce behavioral and psychological symptoms, and alleviate caregiver burden. The findings of this study are expected to provide strong empirical support for the integration of sensory-based occupational therapy interventions into dementia care programs, contributing to both clinical practice and the growing body of evidence on non-pharmacological rehabilitation approaches for Alzheimer's disease.