The baseline correction is useful for signals, that are evaluated
relative to a preceding comparison interval, like SCRs for example.
Anslab subtracts the mean of the signal during the defined baseline
interval from all points of the signal, pulling it to the zero line.
This correction never really changes the data itself or the loaded
file, it merely is calculated shortly before display to allow
comparisons of signals that have an absolute offset, that is not of
interest.
Activate the baseline correction in the view-section of anslab
command window and enter baseline start and end time (in ms) relative
to file begin. Note that baseline activation is signal specific, like
all other display options. Thus if you are displaying multiple channels
and activate baseline correction, only the currently active signal is
baseline corrected. If a baseline correction is active, the baseline
interval is plotted on blue background in the data window. An example
of a baseline corrected IBI signal is shown below.