I showed him the announcement of the Tesla Model 3 because he was curious. And I just see a tiny arousal in the data. Then I showed him videos of the 1g acceleration of the model S. Same here, he had less arousal than I thought.
Yesterday I recorded his GSR with comedy videos and he laughed. Still, his variance was similar to the image case. I think I placed correctly the electrodes on his fingers, also because I made different attempts.
So far I never saw something like this, I know that some people have less variance than others, but I am worried by the values of my dad.
This is one case where there are high and low variance subjects: http://www.shimmersensing.com/assets/images/content/case-study-files/Emotional_Response_27July2015.pdf
I also have a reading of my mother, but she was tired so the low variance in her case could be justified.