ES32: Screenshots
Here you can find a couple of screen shots of ES32. Click on the thumbnail to
get the full-sized version.
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This is ES32 while browsing through an EEG file.
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After averaging some data, ES32 presents you with an Average Report, which is captured here.
As you can probably see, the analyzed experiment had two conditions (congruent and incongruent) and
21 subjects. The data of subject 21 were not analyzed, probably because the data were somehow messed
up. Subject 13 is deactivated (probably for good luck). And somebody is about to open the .EEG file
of subject 2. You can also see how many sweeps each subject contributed to the grand average of each
condition.
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This is the "Comparative View". For each electrode and condition, you get one button. You are thus
able to view your grandaverage and compare the waveforms of selected conditions on selected
eletrodes.
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If you want to get an idea about how good your data are and which differences might
be significant, ES32 can compare the data of two conditions with a point-by-point
t-test. The result of this function can be seen here. You get the original data (the
red and the blue waveform) and you get a third "waveform" that shows you whether
the conditions differ significantly at each point in time (the green one). If the green
line is at the baseline, there is no difference, but if it is between the other two, these
have a significant difference.
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ES32 also allows you to calculate difference potentials. The dialog with which this is
accomplished can be seen here. In this case, we calculate a simple difference potential
by subtracting the data of the incongruent condition from the data of the congruent
condition. But the calculations get a little more complicated, if you check the "Calculate LRP"
checkbox. With this option, ES32 will calculate lateralized potentials (from any electrode).
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