The Oscilloscope shows the raw EEG signal. To adjust the scale or apparent size of the EEG signal:

Click to enlarge the EEG size.
Click to reduce EEG size.

Note: This also adjusts the scale of the spectral display, reward and inhibit bars. You may also use the keyboard up / down arrow keys to enlarge or reduce EEG scale.

watch a video on adjusting the size or scale in Cygnet (1 min)