Multichannel Systems LTP-Director Manual - Manual (Page 51)

LTP-Director
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The IO curve is performed by applying 10 amplitude values in equal distance from the given
minimum and maximum amplitude values in millivolt. For example: Minimum amplitude 50 mV,
maximum amplitude 500 mV, resulting amplitudes: 50 100 150 200 250 300 350 400 450 500.
Select one parameter for analysis from the drop down menu. The IO curve can be repeated
up to three times, the results are averaged.
Click to start the IO curve. If possible, a sigmoid fit curve is automatically calculated.
If not, there is the error message: "Unable to fit data". The stimulation strength resulting
in 70 % or 30 % of the maximum response is displayed. As usual, stimulation pathway 1
is shown in red and stimulation pathway 2 is shown in black.
This data is not recorded, but you can export the IO curve parameter results as ASCII file
or image capture.