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Time-Based and Event-Based Prospective Memory in Adults with Autism Spectrum Disorder: A Virtual Week Investigation

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Purpose: Autism spectrum disorder (ASD) is a complex developmental condition including persistent challenges with social communication, restricted interests, and repetitive behavior. Though prospective memory failures are commonly observed in ASD population it has been less studied among adults with ASD. Prospective memory (PM) refers to the execution of delayed intentions. There are contradictory findings of regular and irregular prospective memory task among autistic adults. The present study is an attempt to investigate prospective memory performance among adults with autism spectrum disorder using the Virtual Week board game. Method: Virtual Week (Rendell & Craik, 2000) (3-day Version) is a computerized board game in which participants after rolling a die move token clockwise around the board. Each round of the board represents one virtual “day.” Adults between 16 and 25 years of age who were diagnosed with ASD (N = 23) were compared with non-ASD (N = 26) adults. Results: Analyses of variance were used to analyze the data. Results revealed that autistic adults as compared to normal adults showed poorer performance on time-based task than on event-based task. A significant difference was evident between regular and irregular prospective memory tasks across both tasks among autistic adults. Results also revealed that ASD difficulties are associated with the prospective component of the irregular task. Conclusions: Prospective memory failures are widely observed in ASD group, and have important implications for functional independence. The findings of this study provide insight into prospective memory challenges that adults with autism spectrum disorder face in a daily basis.

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Correspondence to Azizuddin Khan.

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Dehnavi, F., Khan, A. Time-Based and Event-Based Prospective Memory in Adults with Autism Spectrum Disorder: A Virtual Week Investigation. J Autism Dev Disord 54, 2298–2306 (2024). https://doi.org/10.1007/s10803-023-05975-y

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  • DOI: https://doi.org/10.1007/s10803-023-05975-y

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