You may be able to elicit particular brain responses in the 3D visualization by doing certain mental tasks. Below are some activities that you can try.
Note: Even the most robust activity (eyes closed) will not always elicit a visible response in the visualisation due to differences between individuals, placement of the sensors and the gain settings of the different frequency bands. To maximize the potential of seeing an effect for these activities, try to set the gain of the frequency band of interest as close to the center of the dynamic range for the person wearing the headset as you can, so that you can see both increases and decreases in the signal. To focus your attention on the frequency band of interest, it is recommended at you turn all other frequency bands all the way down (slider all the way to the left).