Video-oculographic recording of the electronic Mobile Universal Lexicon Evaluation System (eMULES) rapid picture naming task

The Mobile Universal Lexicon Evaluation System (MULES) is a new test of rapid picture naming under investigation as a concussion screen(1). The MULES includes 54 color photographs of fruits, objects and animals. It has demonstrated excellent feasibility for administration among adult volunteers and in cohorts of athletes of all ages. MULES likely captures a more extensive neural network compared to rapid number naming (e.g., the King-Devick test), integrating saccades, color perception, figure-ground separation, and object identification. The present study examines the ocular motor underpinnings of performance in this vision-based measure.