EEG Mapper — Medical app

Learn the International 10/20 EEG electrode placement system with this comprehensive learning companion. The 10/20 system is the global standard for scalp electrode positioning during electroencephalography. This app guides you through every step: learning why 10% and 20% intervals work, finding anatomical landmarks on the human head, converting three simple tape measurements into exact electrode coordinates, and testing your knowledge. Key Features: 10/20 Learning Guide – A structured 4-step course teaching the system from principles to practice, with landmark detection, measurement technique, and final verification checklist. Interactive Head Map – Visualize all 21 electrode sites with superior view layout. Sites are color-coded by brain lobe (prefrontal, frontal, temporal, central, parietal, occipital, midline) with region-specific descriptions of typical EEG activity. 10/20 Calculator – Enter three tape measurements (nasion to inion, ear to ear, head circumference) and get precise centimeter positions for every electrode using the standard 10-20-20-20-20-10 cumulative percentage pattern. Electrode Index – Searchable reference with all 21 sites, legacy nomenclature mappings, and functional notes for each brain region. Quiz & Self-Test – Practice identifying electrodes on an unlabeled head map. Questions adapt to focus on areas you haven't fully mastered yet. Progress Tracking – Save your learning progress and pick up where you left off. Perfect for EEG technicians, Sleep students, and clinical professionals preparing for placement procedures. Whether you're new to the 10/20 system or refining your technique, this app provides fast, practical reference and interactive learning in one place.