Memory dual N-back training using mobile devices and its effect on working memory capacity

Working Memory (WM) considers the ability to process and store information and is commonly translated into the acquisition of new knowledge and skills, e.g., in the form of a memory strategy, such as an information grouping strategy. Therefore, increasing the efficiency of WM, particularly through non-invasive methods, such as training, becomes one of the crucial issues in enhancing one’s cognitive functioning. Considering the average mobile device usage time, smartphones can be considered up-to-date training tools. Cognitive training using mobile devices can contribute to improvements in the field of online learning by providing a tool for improving students’ cognitive skills. This study investigated the effectiveness of memory training using a mobile device, i.e., a smartphone. The training was assessed in a sample of young adults (N = 59) within a longitudinal design involving a pre-test and double post-test with a training and control group. The Dual N-back training improved WM capacity and boosted important proximal and distal outcomes. Overall, our study indicated an increase in WM as a result of the training using smartphones, thus providing important cues for enhancing WM capacity by use of digital training on mobile devices on a daily basis.