Unlike protocols intended for neurofeedback training, the new protocol is rather intended for monitoring of general brain state. It gives visual and audio information about brainwave relative amplitudes in basic EEG bands:
|Band sign||Band name||Frequencies [Hz]|
|β||Beta (Beta2, 3 & 4)||15-28|
The device's screen includes bar indicators and digital values of relative amplitudes in those bands. A dominant band (with the highest filtered amplitude in a given moment) is marked.
Audio signal in phones connected to the device enables continuous tracking of EEG changes even when watching the screen is not possible or is inconvenient. The amplitude in dominant band is mapped into sound pitch. Each band is attributed to a different instrument tone.
A separate document describes details of the Monitor protocol.
It enables to look through average scores of past sessions (for current user and protocol). If there are stored session scores and the command is selected, a result of the last session is displayed. Pressing Up (Back) button of the device scrolls to result of the earlier sessions. Then Down (Next) button enables to scroll back to results of subsequent sessions. The index of the session (starting from 0 for most recent session and going up for older sessions) is shown in square brackets. Pressing Esc (or Enter) button ends the view of results.
To see session scores for other protocol and/or user it is necessary to select them with menu options Session/Protocol and System/User. (Signs of the current user and protocol are displayed in the upper right corner of the results view.)
Average scores of the sessions are held while the device is off. Memory of those scores is limited to 63 sessions in total (of all users and protocols). When the memory is full, new sessions cause loss of the oldest scores.
Dominant band (with the highest immediate amplitude in a given moment) is now marked on the device's screen.
© Neurobit Systems, 11.2009