International 10-20 System Resources & Training Center
Supporting accurate, reproducible EEG electrode placement through practical tools, educational resources, and training programs.
The International 10-20 System provides the geometric framework used to record and interpret EEG activity. Consistent measurement helps reduce placement variability, improve reproducibility, support reliable serial comparisons, and preserve the integrity of the recorded data.
Why Accurate Electrode Placement Matters
The International 10-20 System establishes a reproducible geometric framework that relates scalp electrode locations to underlying cortical regions. Accurate EEG electrode placement supports localization, asymmetry assessment, serial comparisons, and consistent interpretation across studies. When electrodes are misplaced, the resulting error may be invisible to the interpreting physician while still affecting the spatial integrity of the recording and the clinical value of the data.
Accurate identification of the nasion, inion, and preauricular points forms the foundation of reproducible International 10-20 System measurement. Consistent landmark identification is essential for accurate EEG electrode placement and reliable recordings.
The resources below include downloadable reference materials, competency assessment tools, detailed instructions for use, and educational training opportunities designed to help technologists implement accurate measurement efficiently in real-world clinical environments.
Free Resources & Downloads
EEG Head Measurement Evaluation Worksheet
Assess measurement accuracy and compare calculated versus actual electrode locations.
Ideal for:
- Student training
- Competency validation
- Laboratory quality initiatives
- Workshop exercises
Macro-free workbook • No VBA code • No external data connections
International 10-20 Electrode Placement Diagram
Printable reference diagram illustrating standard electrode locations and nomenclature within the International 10-20 System.
Ideal for:
- Clinical reference
- Student instruction
- Laboratory training
- Electrode placement review
Blank International 10-20 Practice Diagram
Practice identifying and labeling standard electrode locations using a blank 10-20 framework designed for education, competency assessment, and self-study.
Ideal for:
- Student exercises
- Competency validation
- Classroom activities
- Workshop participation
ACNS Guidelines for Clinical EEG
American Clinical Neurophysiology Society Guideline 1: Minimum Technical Requirements for Performing Clinical Electroencephalography
This foundational guideline outlines the minimum technical standards recommended for performing routine clinical EEG studies, including electrode application, recording standards, calibration, and technical quality considerations. It is widely referenced throughout the neurodiagnostic field as a benchmark for EEG quality and consistency.
Ideal for Building a Quality-Focused EEG Program:
- Developing laboratory policies and technical standards
- Supporting compliance with ACNS guidelines
- Improving consistency and reproducibility in EEG recordings
- Training and validating EEG technologist competency
- Workshop and continuing education participation
Training Registration
International 10-20 System Measurement Training Program
This instructor-led online training program is designed to provide practical, hands-on experience with accurate electrode measurement and application of the International 10-20 System.
To support the learning experience, participants receive a training kit that includes:
- Practice mannequin head(s)
- Marking pens and training materials
- ez1020™ measurement tapes
- Prepaid return shipping label
- Live online instructional session and guided exercises
Participants complete hands-on measurement activities during the training while receiving real-time instruction and feedback.
Current Sessions
Training sessions are currently offered on a limited basis by invitation or scheduled enrollment.
Private Registration (Invited Participants)
Registration link provided directly to confirmed attendees.
Interested in Future Training?
Complete our Training Interest Form to receive information about upcoming online workshops, private laboratory training, and educational programs.
The ez1020™ Measurement System supports rapid and reproducible EEG electrode placement using the International 10-20 System. These instructions cover head measurement, electrode location determination, and use of the ezGUIDE™ application to streamline the electrode placement workflow while supporting compliance with accepted neurodiagnostic standards.