Great flexibility is thus available for stimulus presentation patterns.
Further in this section an example is given of measurement in an oddball paradigm. Data are created in blocks, identical time periods relative to the stimulus. If there is more than one category of stimulus, the 'include' flag is used to differentiate between each stimulus category. The example data shown here were measured in an oddball paradigm, with tow stimulus categories, rare and frequent. The subject was asked to differentiate between tones where the rare stimulus was a slightly higher tone frequency.