Abstract
Abstract Objective Processing speed may partially mediate age-related differences in prospective memory (PM) abilities (West & Craik, 2001). The present preliminary study aimed to further investigate the relationships between prospective memory and processing speed by utilizing a novel virtual reality-based prospective memory measure. The task was designed to assess the impacts of a virtual environment would facilitate a deeper level of processing and enhance prospective memory performance. Method 49 older adults (M = 73.87, SD = 8.24) and 39 younger adults(M = 18.87, SD =1.61) completed the Coding subtest of the Weschler Adult Intelligence Scale (WAIS- IV) as well as a virtual-reality prospective memory measure that utilized both time-based and event-based cues. Results Coding was strongly correlated with PM time-based cues (r = .43, p < .01) and event-based cues (r = .53, p < .001). There were no correlations between processing speed and prospective memory in the young adult sample. Conclusion This study suggests that processing speed is strongly related to virtual-reality based PM and suggests that processing speed is a crucial component in prospective memory outcomes in older adults. This novel task virtual reality task may provide construct validity against other prospective memory measures.
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