Hello !
Thank you for your interest :) !
Yes, we asked participants before and after the experiment and before and after each experimental blocks in the main test their feeling of boredom and fatigue, but these items were unique questions about their level of fatigue and boredom. We do not have take into account more general aspects like negativity or bad mood.
Léa who tested boredom has found significant differences between the beginning of the experiment and the end, suggesting that participants (if we simplify it a bit) should be in less good mood at the end, like when you came to do it last year. Moreover, with the results found for task engagement, it can be hypothesized that other negative emotions were reflected in this "disengagement".
Martin also has found significants results about anxiety ! If you want more details, maybe you should ask them about it.
I hope I've answered your question.
Have a nice day !