What is the purpose of calibration ?

The calibration step starts once you have passed the headset adjustment step, before the neurofeedback exercise begins.

            

Headset Adjustment                                                      Calibration  

The calibration step allows you to measure your baseline brain level when you are not doing anything. This level allows us to customize the difficulty of each exercise based on your own brain activity. You don't have to do anything in particular, we just ask you to close your eyes and stay very still. This is because if you put yourself in a relaxed state upon calibration, your basic alpha level will be elevated and the neurofeedback session will be harder. It is therefore important to be in a neutral state and do nothing during this stage. 

Make sure to follow the steps below:

• Remain still.
• Close your eyes.
• Do not relax, but remain in a neutral state.

Why should you not move during calibration? 

Remaining still is essential during the calibration, the signal is sensitive to all your moves. If you move or open your eyes, your alpha wave level will drop very quickly and this will prevent a good calibration of your brain signal.

You should also be in a quiet environment. 

How long can the calibration take?

The first step of the calibration takes 30 seconds. 

If the signal is of good quality you will automatically proceed to the next step: neurofeedback exercise.

  

If the exercise does not start within 30 seconds, it means that the calibration of your EEG signal has not been possible. A warning screen will appear to alert you:

To restart the calibration step you must first redo the headset adjustment step, you can click on retry. 

The headset adjustment will then restart to ensure good signal quality. You don't have to reposition your headphones. 

Once the adjustment is done, the calibration step will restart. 

If the calibration still hasn't worked after 30 seconds you cannot start your neurofeedback exercise. 

A warning screen will appear to warn you.

 Please contact us for assistance with this step.