Enhancing in-car interface efficiency: The influence of menu configuration on cognitive load and visuospatial memory.

The study examines the impacts of different menu types on touchscreen operations under varying visuospatial working memory (VSWM) loads through an in-vehicle information/infotainment system (IVIS). Using eye-tracking, EEG data, and the NASA-TLX questionnaire, it assesses the effects of menu types and VSWM loads on task performance, visual search efficiency, and mental workload. The 36 participants were divided into hierarchical and grouping menu groups, demonstrating that grouping menus exhibit better task performance and visual search efficiency.