The Impact of Mobile Devices on Working Memory

Abstract: Mobile devices are believed to require a greater amount of working memory to use than traditional computers. This increase in cognitive load is believed to result in lower scores when cognitive assessments are completed on mobile devices. This paper directly tests this hypothesis using a repeated-measures dual-task design where participants complete parallel working memory tests on both mobile and desktop computers. Significant differences were found between the two modalities in the time to complete the assessments and usability ratings. This suggests that working memory is negatively impacted when completing an assessment on a mobile device.