Auto Train Brain records EEG while a session runs, and the app keeps what it recorded. This post explains what is actually being recorded, what the numbers on the screen refer to, and what a record of this kind can and cannot tell you.
What EEG records
Electroencephalography measures electrical activity at the scalp through sensors held against the skin. Nothing is sent into the head; the sensors only read. The signal is usually described in frequency bands, from slower to faster rhythms, and what changes from minute to minute is mostly the balance between them.
What the app shows during a session
While an exercise runs, the app converts the live signal into something visible or audible, so the user can see their own recorded activity as it happens rather than hearing about it afterwards. The display is a readout of the recording, not a score and not an assessment.
Session records over time
Each session is saved with its date, its length and the recorded values, so a family can look back over weeks and see two plain things: how often they practised, and how much the numbers moved. Consistency is usually the more informative of the two.
Why a measurement is not a result
A number that moves is a measurement, not an outcome. EEG is sensitive to how well the sensors sit, to movement, to jaw tension, to how tired someone is and to the time of day. Two sessions a week apart can differ for reasons that have nothing to do with practice. A change in a recorded rhythm is not by itself evidence that reading, attention or schoolwork changed, and we do not present it as such.
What else is worth writing down
Families who find the record useful tend to keep a plain note alongside it: what time the session ran, whether the child had eaten, whether the room was quiet, what the school day had been like. Those notes usually explain more of the week-to-week variation than the EEG numbers do.
Auto Train Brain is not a medical device. It is not intended to diagnose, treat, cure or prevent any disease or condition. Published research on the approach is listed on our research articles page.