Adjusting the threshold by smaller increments during a session
Some clinicians may want a greater degree of control over changing their thresholds during a session.
EEGer's default threshold-change increment is set to 10% of your selected trace's scale.
E.g., if you have selected (by using the up and down arrow keys) a trace with a scale of 10 uv/cm, the threshold will decrease/increase by 1 uv with every press of the left or right arrow keys.
If you have selected a trace with a scale of 50 uv/cm, the threshold will decrease/increase by 5 uv with each press of the left or right arrow keys.
For more control during a session, you can hold the shift key while pressing the left or right arrows to adjust the threshold by 2.5% of your selected trace's scale.
E.g., if you have selected a trace with a scale of 10 uv/cm, the threshold will decrease/increase by 0.25 uv with each press of shift + the left or right arrow keys.
If you have selected a trace with a scale of 50 uv/cm, the threshold will decrease/increase by 1.25 uv with each press of shift + the left or right arrow keys.