A mobile-based in-situ concussion assessment application

“Sideline” is a mobile application to detect and monitor common concussion symptoms on the field. In a typical concussion event, players are taken to the sidelines and then parents or coach start the “Sideline” application. The application starts with concussion symptoms test followed by a working memory test, a visual memory test, and physical balance test. Finally, Sideline also allows parents and coaches to capture the images of the pupil with a camera of any resolution to train image recognition algorithms. Additionally, Sideline monitors the player’s symptoms and cognitive functions in natural conditions up to 48 hours after impact (using ecological momentary assessments). You can access the code here. Note that it was built for Android 4.3 and may not be backward compatible with latest SDKs and API levels.

Sideline allows:

  1. Non-experts such as parents and coaches of young athletes to more confidently assess and take preventive measures against concussions.
  2. Initiate a concussion assessment using mobile-phones immediately after an impact in the absence of an expert caregiver.
  3. Gather pupil dilation images from consumer-grade smartphone cameras to generate a database of concussion-related pupil dilations.

Technology used:

Android, Android Sensors (Accelerometer, Gyroscope, and Magnetometer)


Elizabeth Stowell (Ph.D. Student, Northeastern University)