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Emotion

 

The Emotion folder contains the emotion graphs over time, one for each stimulus. These graphs are exactly the same ones that you see on the Summary Overview Page. The only reason they are also available separately, is so that you can use them in your presentations as high resolution images. The emotion graphs are also the same as the ones you see in the Eye Tracking Video Quadrant Videos [ADD LINK].

The Emotion folder also contains two subfolders:

    1. Heat by contour
    2. Heat by emo

 

Heat by contour

The heat by contour analysis is an analysis that automatically identifies interesting time points on the emotion graph. These points are then extracted and shown on an overview page. Because each stimulus is different, one might have a lot of interesting points, while others have very few. That is why each stimulus contains its own subfolder with a different number of files, one for each automatically identified point of emotion.

 

On the overview page you see the heatmap on the left side. This is exactly the heatmap of the identified time point. The emotion graph is on the bottom right side. This is also the exact same emotion graph of the Summary Overview Page and of the emotion graph files. The grey bar on the emotion graph shows the identified time point. At the top is the emotion bar graph shown. These are the numbers extracted directly from the emotion graph and are also normalized. This makes it easy to compare the emotions and their relative amount between each other. On the right is again the emotion color coding for easy reference.

With this overview you can then directly see what testers saw and how they felt.

Here are all automatically identified time points for the example.

This automatic analysis saves you time to quickly figure out important changes in emotion and to also see what has caused them on the correct heatmap.

 

Heat by emo

The heat by emo analysis combines eye tracking and emotion data in a completely new way. Because we do eye tracking and emotion tracking at the same time, we know exactly where people look and how they feel at exactly that moment. For that reason we can create so called Emotion Maps. This is a heatmap that takes into account the expressed emotions at each location on the stimulus. This makes it immediately obvious what causes emotions of testers.

Also here, you will find one folder per stimulus and within that folder two versions of Emotion Maps. One version is scaled and the other unscaled.

Scaled

The scaled emotion maps are scaled based on the strongest emotion expressed. This is example, the strongest emotion expressed was Happy. The scale of all other emotions is then adjusted to the Happy scale. As you can see, the scale to the right side of each Emotion Map has the same values and therefore the same range. Because the intensity of each emotion is different, the amount of expressed color on the stimulus changes and this makes it clear where on the stimulus which emotion had an impact. The scaled version of the Emotion Maps is very useful for a direct comparison between emotions on the stimulus.

Unscaled

The unscaled Emotion Maps look all very similar to each other because they all contain the same eye tracking data and the intensity of color is based on the single emotion itself. The only difference is that the scale and its values are now different as you can see on the right side of each Emotion Map. This means that the color intensity of Happy means something different compared to the color intensity of Disgust for example. The unscaled Emotion Maps are useful if you want to find out where the most amount of a single emotion was expressed but these are not so useful to compare between emotions.