Visual Accessibility through Open Shelving: Impacts on Cognitive Load, Motivation, Physical Activity, and User Perception in Older Adults with Mild Cognitive Impairment.

Older adults with Mild Cognitive Impairment (MCI) often experience difficulty locating items in kitchen cabinets, limiting their experiences in the kitchen and with meal preparation. This study examined how open shelving kitchen cabinets, relative to closed cabinets, affects cognitive load, motivation, physical activity, and user perception among older adults with MCI. Eleven older adults completed meal preparation tasks in both conditions while data on eye-tracking, wrist accelerometry, step count, task duration, and Intrinsic Motivation Inventory were collected. Participant profiles were developed using standardized z-scores, and post-task interviews captured qualitative perspectives. Results showed modest improvements in cognitive load, intrinsic motivation, and task duration, with physical activity significantly decreasing under open shelving, suggesting greater physical efficiency. Individual profiles revealed diverse patterns, including high performers, strugglers, motivated but physically strained, and balanced or average participants. Interview findings highlighted that emotional and aesthetic concerns, like dust and visual clutter, influenced attitudes toward open shelving regardless of objective functional benefits. These findings suggest that while open shelving may reduce cognitive and physical demands and enhance motivation and task efficiency, personalized and flexible design solutions are critical to support cognitive aging-in-place effectively.